Nucleus accumbens core medium spiny neuron electrophysiological properties and partner preference behavior in the adult male prairie vole, Microtus ochrogaster.

PubMed

Willett, Jaime A; Johnson, Ashlyn G; Vogel, Andrea R; Patisaul, Heather B; McGraw, Lisa A; Meitzen, John

2018-04-01

Medium spiny neurons (MSNs) in the nucleus accumbens have long been implicated in the neurobiological mechanisms that underlie numerous social and motivated behaviors as studied in rodents such as rats. Recently, the prairie vole has emerged as an important model animal for studying social behaviors, particularly regarding monogamy because of its ability to form pair bonds. However, to our knowledge, no study has assessed intrinsic vole MSN electrophysiological properties or tested how these properties vary with the strength of the pair bond between partnered voles. Here we performed whole cell patch-clamp recordings of MSNs in acute brain slices of the nucleus accumbens core (NAc) of adult male voles exhibiting strong and weak preferences for their respective partnered females. We first document vole MSN electrophysiological properties and provide comparison to rat MSNs. Vole MSNs demonstrated many canonical electrophysiological attributes shared across species but exhibited notable differences in excitability compared with rat MSNs. Second, we assessed male vole partner preference behavior and tested whether MSN electrophysiological properties varied with partner preference strength. Male vole partner preference showed extensive variability. We found that decreases in miniature excitatory postsynaptic current amplitude and the slope of the evoked action potential firing rate to depolarizing current injection weakly associated with increased preference for the partnered female. This suggests that excitatory synaptic strength and neuronal excitability may be decreased in MSNs in males exhibiting stronger preference for a partnered female. Overall, these data provide extensive documentation of MSN electrophysiological characteristics and their relationship to social behavior in the prairie vole. NEW & NOTEWORTHY This research represents the first assessment of prairie vole nucleus accumbens core medium spiny neuron intrinsic electrophysiological properties and probes the relationship between cellular excitability and social behavior.

Time perspective and social preference in older and younger adults: Effects of self-regulatory fatigue.

PubMed

Segerstrom, Suzanne C; Geiger, Paul J; Combs, Hannah L; Boggero, Ian A

2016-09-01

Socioemotional selectivity theory predicts that when perceived time in life is limited, people will prefer emotionally close social partners over less emotionally rewarding partners. Regulating social choices with regard to time perspective can make the best use of time with regard to well-being. However, doing so may depend on the self-regulatory capacity of the individual. Two studies, 1 with younger adults (N = 101) and 1 with younger (N = 42) and older (N = 39) adults, experimentally tested the effects of time perspective and self-regulatory fatigue on preferences for emotionally close partners and knowledgeable partners. In both studies and across younger and older adults, when self-regulatory fatigue was low, the perception of limited time resulted in a greater preference for close social partners relative to knowledgeable social partners. However, this shift was eliminated by self-regulatory fatigue. In Study 2, when fatigued, younger adults preferred close social partners to knowledgeable partners across time perspectives; older adults preferred close and knowledgeable partners more equally across time perspectives. These findings have implications for social decision-making and satisfaction among people who experience chronic self-regulatory fatigue. They also contradict previous suggestions that only younger adults are susceptible to self-regulatory fatigue. (PsycINFO Database Record (c) 2016 APA, all rights reserved).

Time Perspective and Social Preference in Older and Younger Adults: Effects of Self-Regulatory Fatigue

PubMed Central

Segerstrom, Suzanne C.; Geiger, Paul J.; Combs, Hannah L.; Boggero, Ian A.

2016-01-01

Socioemotional selectivity theory predicts that when perceived time in life is limited, people will prefer emotionally close social partners over less emotionally rewarding partners. Regulating social choices with regard to time perspective can make the best use of time with regard to well-being. However, doing so may depend on the self-regulatory capacity of the individual. Two studies, one with younger adults (N = 101) and one with younger (N = 42) and older (N = 39) adults, experimentally tested the effects of time perspective and self-regulatory fatigue on preferences for emotionally close partners and knowledgeable partners. In both studies and across younger and older adults, when self-regulatory fatigue was low, the perception of limited time resulted in a greater preference for close social partners relative to knowledgeable social partners. However, this shift was eliminated by self-regulatory fatigue. In Study 2, when fatigued, younger adults preferred close social partners to knowledgeable partners across time perspectives; older adults preferred close and knowledgeable partners more equally across time perspectives. These findings have implications for social decision-making and satisfaction among people who experience chronic self-regulatory fatigue. They also contradict previous suggestions that only younger adults are susceptible to self-regulatory fatigue. PMID:27243763

Feminine gender identity and physical aggressiveness in heterosexual and homosexual pedophiles.

PubMed

Freund, K; Blanchard, R

1987-01-01

This study explored the differences among six groups of adult males in retrospective self-reports of childhood gender identity and physical aggressiveness. The three groups of homosexual men preferred prepubescent, pubescent, or physically mature sexual partners. The three groups of heterosexual men preferred prepubescent partners, normal sexual interaction with physically mature partners (controls), or anomalous interaction with physically mature partners. Childhood gender identity was measured with the Feminine Gender Identity Scale (FGIS), and boyhood aggressiveness was measured with the Physical Aggressiveness Scale (PAS). Duncan tests at the .05 level showed that the FGIS differentiated the homosexuals who preferred mature partners from the five other groups; whereas the PAS differentiated all homosexual groups from all heterosexual groups. These results suggest that male homosexuals in general tend to be unaggressive in boyhood, whereas only those who prefer mature sexual partners show significant levels of feminine identification.

Manipulation of the oxytocin system alters social behavior and attraction in pair-bonding primates, Callithrix penicillata

PubMed Central

Smith, Adam S.; Ågmo, Anders; Birnie, Andrew K.; French, Jeffrey A.

2010-01-01

The establishment and maintenance of stable, long-term male-female relationships, or pair bonds, are marked by high levels of mutual attraction, selective preference for the partner, and high rates of sociosexual behavior. Central oxytocin (OT) affects social preference and partner-directed social behavior in rodents, but the role of this neuropeptide has yet to be studied in heterosexual primate relationships. The present study evaluated whether the OT system plays a role in the dynamics of social behavior and partner preference during the first three weeks of cohabitation in male and female marmosets, Callithrix penicillata. OT activity was stimulated by intranasal administration of OT, and inhibited by oral administration of a non-peptide OT-receptor antagonist (L-368,899; Merck). Social behavior throughout the pairing varied as a function of OT treatment. Compared to controls, marmosets initiated huddling with their social partner more often after OT treatments but reduced proximity and huddling after OT antagonist treatments. OT antagonist treatment also eliminated food sharing between partners. During the 24-h preference test, all marmosets interacted more with an opposite-sex stranger than with the partner. By the third-week preference test, marmosets interacted with the partner and stranger equally with the exception that intranasal-OT treatments facilitated initial partner-seeking behavior over initial contact with the stranger. Our findings demonstrate that pharmacological manipulations of OT activity alter partner-directed social behavior during pair interactions, suggesting that central OT may facilitate the process of pair-bond formation and social relationships in marmoset monkeys. PMID:20025881

Manipulation of the oxytocin system alters social behavior and attraction in pair-bonding primates, Callithrix penicillata.

PubMed

Smith, Adam S; Agmo, Anders; Birnie, Andrew K; French, Jeffrey A

2010-02-01

The establishment and maintenance of stable, long-term male-female relationships, or pair-bonds, are marked by high levels of mutual attraction, selective preference for the partner, and high rates of sociosexual behavior. Central oxytocin (OT) affects social preference and partner-directed social behavior in rodents, but the role of this neuropeptide has yet to be studied in heterosexual primate relationships. The present study evaluated whether the OT system plays a role in the dynamics of social behavior and partner preference during the first 3 weeks of cohabitation in male and female marmosets, Callithrix penicillata. OT activity was stimulated by intranasal administration of OT, and inhibited by oral administration of a non-peptide OT-receptor antagonist (L-368,899; Merck). Social behavior throughout the pairing varied as a function of OT treatment. Compared to controls, marmosets initiated huddling with their social partner more often after OT treatments but reduced proximity and huddling after OT antagonist treatments. OT antagonist treatment also eliminated food sharing between partners. During the 24-h preference test, all marmosets interacted more with an opposite-sex stranger than with the partner. By the third-week preference test, marmosets interacted with the partner and stranger equally with the exception that intranasal-OT treatments facilitated initial partner-seeking behavior over initial contact with the stranger. Our findings demonstrate that pharmacological manipulations of OT activity alter partner-directed social behavior during pair interactions, suggesting that central OT may facilitate the process of pair-bond formation and social relationships in marmoset monkeys. Published by Elsevier Inc.

Trichostatin A (TSA) facilitates formation of partner preference in male prairie voles (Microtus ochrogaster).

PubMed

Duclot, F; Wang, H; Youssef, C; Liu, Y; Wang, Z; Kabbaj, M

2016-05-01

In the socially monogamous prairie voles (Microtus ochrogaster), the development of a social bonding is indicated by the formation of partner preference, which involves a variety of environmental and neurochemical factors and brain structures. In a most recent study in female prairie voles, we found that treatment with the histone deacetylase inhibitor trichostatin A (TSA) facilitates the formation of partner preference through up-regulation of oxytocin receptor (OTR) and vasopressin V1a receptor (V1aR) genes expression in the nucleus accumbens (NAcc). In the present study, we tested the hypothesis that TSA treatment also facilitates partner preference formation and alters OTR and V1aR genes expression in the NAcc in male prairie voles. We thus observed that central injection of TSA dose-dependently promoted the formation of partner preference in the absence of mating in male prairie voles. Interestingly, TSA treatment up-regulated OTR, but not V1aR, gene expression in the NAcc similarly as they were affected by mating - an essential process for naturally occurring partner preference. These data, together with others, not only indicate the involvement of epigenetic events but also the potential role of NAcc oxytocin in the regulation of partner preference in both male and female prairie voles. Copyright © 2016 Elsevier Inc. All rights reserved.

Enhaced D2-type receptor activity facilitates the development of conditioned same-sex partner preference in male rats.

PubMed

Cibrian-Llanderal, Tamara; Rosas-Aguilar, Viridiana; Triana-Del Rio, Rodrigo; Perez, Cesar A; Manzo, Jorge; Garcia, Luis I; Coria-Avila, Genaro A

2012-08-01

Animal models have shown that the neural bases of social attachment, sexual preference and pair bonds, depend on dopamine D2-type receptor and oxytocin activity. In addition, studies have demonstrated that cohabitation can shape partner preference via conditioning. Herein, we used rats to explore the development of learned same-sex partner preferences in adulthood as a result of cohabitation during enhanced D2 activity. Experimental Wistar males (N=20), received saline or the D2 agonist (quinpirole) and were allowed to cohabitate during 24 h, with a stimulus male partner that bore almond scent on the back as conditioned stimulus. This was repeated every 4 days, for a total of three trials. Four days later they were drug-free tested for partner preference between the scented male partner and a sexually receptive female. Sexual partner preference was analyzed by measuring frequency and latency for appetitive and consummatory sexual behaviors, as well as non-contact erections. Social preference was also analyzed by measuring the frequency and latency of visits, body contacts and time spent together. Results indicated that only quinpirole-treated males displayed sexual and social preference for the scented male over the sexually receptive female. They spent more time together, displayed more body contacts, more female-like proceptive behaviors, and more non-contact erections. Accordingly, conditioned males appeared to be more sexually aroused and motivated by the known male than by a receptive female. We discuss the implications of this animal model on the formation of learned homosexual partner preferences. Copyright © 2012 Elsevier Inc. All rights reserved.

Stable and fluctuating social preferences and implications for cooperation among female bonobos at LuiKotale, Salonga National Park, DRC.

PubMed

Moscovice, Liza R; Douglas, Pamela Heidi; Martinez-Iñigo, Laura; Surbeck, Martin; Vigilant, Linda; Hohmann, Gottfried

2017-05-01

Female bonobos (Pan paniscus) are characterized as highly affiliative and cooperative, but few studies have quantified the strength and stability of female intra-sexual relationships or explored how variation in social relationships influences cooperation. We measure female social preferences, identify causes of variation in preferences, and test whether variation in social preferences predicts food sharing or coalitionary support. Data were collected over 3 years from females in the Bompusa community at LuiKotale, DRC. We measured genetic relatedness and constructed social preference indices for party association, proximity, grooming, GG-rubbing and aggression. We identified preferred social partners based on permutation tests and measured stability using Mantel tests. We used factor analysis to identify inter-relationships between preference indices and used LMMs to test whether variation in social preferences was explained by relatedness, rank differences, having dependent young or co-residency time. We used GLMMs to test whether variation in social preferences predicted food sharing or coalitionary support. All females had preferred non-kin partners for proximity, grooming or GG-rubbing, but only grooming preferences were stable across years. Association indices were higher among lactating females, and aggression was lower among females with longer co-residency times. The factor analysis identified one factor, representing proximity and GG-rubbing preferences, labeled behavioral coordination. Dyads with higher levels of behavioral coordination were more likely to share food. Female bonobos exhibit stable, differentiated grooming relationships outside of kinship and philopatry. Females also exhibit flexible proximity and GG-rubbing preferences that may facilitate cooperation with a wider range of social partners. © 2017 Wiley Periodicals, Inc.

Are Human Mating Preferences with Respect to Height Reflected in Actual Pairings?

PubMed Central

Stulp, Gert; Buunk, Abraham P.; Pollet, Thomas V.; Nettle, Daniel; Verhulst, Simon

2013-01-01

Pair formation, acquiring a mate to form a reproductive unit, is a complex process. Mating preferences are a step in this process. However, due to constraining factors such as availability of mates, rival competition, and mutual mate choice, preferred characteristics may not be realised in the actual partner. People value height in their partner and we investigated to what extent preferences for height are realised in actual couples. We used data from the Millennium Cohort Study (UK) and compared the distribution of height difference in actual couples to simulations of random mating to test how established mate preferences map on to actual mating patterns. In line with mate preferences, we found evidence for: (i) assortative mating (r = .18), (ii) the male-taller norm, and, for the first time, (iii) for the male-not-too-tall norm. Couples where the male partner was shorter, or over 25 cm taller than the female partner, occurred at lower frequency in actual couples than expected by chance, but the magnitude of these effects was modest. We also investigated another preference rule, namely that short women (and tall men) prefer large height differences with their partner, whereas tall women (and short men) prefer small height differences. These patterns were also observed in our population, although the strengths of these associations were weaker than previously reported strength of preferences. We conclude that while preferences for partner height generally translate into actual pairing, they do so only modestly. PMID:23342102

Are human mating preferences with respect to height reflected in actual pairings?

PubMed

Stulp, Gert; Buunk, Abraham P; Pollet, Thomas V; Nettle, Daniel; Verhulst, Simon

2013-01-01

Pair formation, acquiring a mate to form a reproductive unit, is a complex process. Mating preferences are a step in this process. However, due to constraining factors such as availability of mates, rival competition, and mutual mate choice, preferred characteristics may not be realised in the actual partner. People value height in their partner and we investigated to what extent preferences for height are realised in actual couples. We used data from the Millennium Cohort Study (UK) and compared the distribution of height difference in actual couples to simulations of random mating to test how established mate preferences map on to actual mating patterns. In line with mate preferences, we found evidence for: (i) assortative mating (r = .18), (ii) the male-taller norm, and, for the first time, (iii) for the male-not-too-tall norm. Couples where the male partner was shorter, or over 25 cm taller than the female partner, occurred at lower frequency in actual couples than expected by chance, but the magnitude of these effects was modest. We also investigated another preference rule, namely that short women (and tall men) prefer large height differences with their partner, whereas tall women (and short men) prefer small height differences. These patterns were also observed in our population, although the strengths of these associations were weaker than previously reported strength of preferences. We conclude that while preferences for partner height generally translate into actual pairing, they do so only modestly.

Partner Choice in Raven (Corvus corax) Cooperation.

PubMed

Asakawa-Haas, Kenji; Schiestl, Martina; Bugnyar, Thomas; Massen, Jorg J M

2016-01-01

Although social animals frequently make decisions about when or with whom to cooperate, little is known about the underlying mechanisms of partner choice. Most previous studies compared different dyads' performances, though did not allow an actual choice among partners. We tested eleven ravens, Corvus corax, in triads, giving them first the choice to cooperate with either a highly familiar or a rather unfamiliar partner and, second, with either a friend or a non-friend using a cooperative string-pulling task. In either test, the ravens had a second choice and could cooperate with the other partner, given that this one had not pulled the string in the meantime. We show that during the experiments, these partner ravens indeed learn to wait and inhibit pulling, respectively. Moreover, the results of these two experiments show that ravens' preferences for a specific cooperation partner are not based on familiarity. In contrast, the ravens did show a preference based on relationship quality, as they did choose to cooperate significantly more with friends than with non-friends and they were also more proficient when cooperating with a friend. In order to further identify the proximate mechanism of this preference, we designed an open-choice experiment for the whole group where all birds were free to cooperate on two separate apparatuses. This set-up allowed us to distinguish between preferences for close proximity and preferences to cooperate. The results revealed that friends preferred staying close to each other, but did not necessarily cooperate with one another, suggesting that tolerance of proximity and not relationship quality as a whole may be the driving force behind partner choice in raven cooperation. Consequently, we stress the importance of experiments that allow such titrations and, suggest that these results have important implications for the interpretations of cooperation studies that did not include open partner choice.

Preferences and Ratings of Partner Traits in Female Survivors of Childhood Abuse With PTSD and Healthy Controls.

PubMed

Lieberz, Klara A; Müller-Engelmann, Meike; Priebe, Kathlen; Friedmann, Franziska; Görg, Nora; Herzog, Julia Isabell; Steil, Regina

2017-11-01

There is growing empirical evidence for an association between childhood abuse (CA) and intimate partner violence (IPV) in adulthood. We tested whether revictimized survivors of severe to extreme severities of child sexual abuse (CSA) and severe severities of child physical abuse (CPA) differed from nonvictimized healthy controls in their trait preferences in intimate partners and their current mate choice. In a sample of 52 revictimized female patients with posttraumatic stress disorder (PTSD) after CSA/CPA and 52 female healthy controls, the validated Intimate Partner Preferences Questionnaire (IPPQ) was used to assess (a) the desirability of tenderness, dominance, and aggression traits in potential partners, and (b) the presence of these traits in their current intimate partners. Factors potentially associated with partner preference and mate choice, for example, chronicity of traumatic events and lower self-esteem, were explored. Our results showed that, in general, revictimized PTSD patients did not have a preference for dominant or aggressive partners. However, revictimized women displayed a significantly larger discrepancy than did healthy controls between their preferences for tenderness traits and their ratings of the presence of tenderness traits in their current partners. Our results indicated that revictimized patients had lower self-esteem values; however, these values were associated with higher demands for tenderness traits. Furthermore, our results revealed that compared with patients who experienced early-onset childhood abuse (CA), those who experienced later onset CA were more accepting of dominant traits in potential partners. Women who had experienced IPV rated their current partners to be overly dominant. A higher tolerance of dominance traits might increase the risk of IPV in a specific subgroup of abused women (women with a later onset of abuse experiences and experiences of IPV).

A Test of Two Theories in the Initial Process Stage of Coalition Formation.

ERIC Educational Resources Information Center

Flaherty, John F.; Arenson, Sidney J.

1978-01-01

Males and females participated in a coalition formation procedure by interacting with a computer program that simulated a pachisi game situation. Female partner preference data supported a weighted probability model of coalition formation over a bargaining theory. Male partner preference data did not support either theory. (Author)

Effects of acute corticosterone treatment on partner preferences in male and female zebra finches (Taeniopygia guttata).

PubMed

LaPlante, Kimberly A; Huremovic, Enida; Tomaszycki, Michelle L

2014-04-01

Stress alters physiology and behavior across species. Most research on the effects of stress on behavior uses chronic stressors, and most are correlational. The effects of acute stressors on physiology and behavior have been mixed. Here, we use zebra finches, a highly gregarious species that forms long-term pair bonds, to test the effects of an acute corticosterone (CORT) on opposite-sex partner preferences over a same-sex individual or a group (the latter is a highly appealing option). We had two competing hypotheses. First, we predicted that acute CORT would alter preferences for the opposite sex bird in both conditions in both sexes. However, since there is a sex difference in the effects of CORT on partner preferences in voles, these effects may be more pronounced in males than in females. To test our hypotheses, we administered 2 doses of CORT (10μg and 20μg) or vehicle (control) using a repeated measures design. In the male vs. female test, there was a significant Sex by Treatment interaction, such that in males, 10μg CORT increased preferences for a female over the male compared to when these same males were treated with saline at baseline. There were no effects of treatment in females. In the opposite-sex vs. group condition, there was an overall effect of Treatment, such that the 10μg dose increased preference for the opposite-sex individual over both saline treatments, regardless of sex. These findings further our understanding of the effects of an acute stressor on sexual partner preferences. Copyright © 2014 Elsevier Inc. All rights reserved.

Heterosexual experience prevents the development of conditioned same-sex partner preference in male rats.

PubMed

Ramírez-Rodríguez, Rodrigo; Tecamachaltzi-Silvaran, Miriam B; Díaz-Estrada, Victor X; Chena-Becerra, Florencia; Herrera-Covarrubias, Deissy; Paredes-Ramos, Pedro; Manzo, Jorge; Garcia, Luis I; Coria-Avila, Genaro A

2017-03-01

Sexual partner preferences can be strengthened, weakened or even drastically modified via Pavlovian conditioning. For example, conditioned same-sex partner preference develops in sexually-naïve male rats that undergo same-sex cohabitation under the effects of quinpirole (QNP, D2 agonist). Here, we assessed the effect of prior heterosexual experience on the probability to develop a conditioned same-sex preference. Naïve or Sexually-experienced males received either Saline or QNP and cohabited during 24h with a male partner that bore almond scent on the back as conditioned stimulus. This was repeated every 4days for a total of three trials and resulted in four groups (Saline-naïve, Saline-experienced, QNP-naïve, QNP-experienced). Social and sexual preference were assessed four days after the last conditioning trial in a drug-free test in which experimental males chose between the scented familiar male and a novel sexually receptive female. Results showed that Saline-naïve, Saline-experienced and QNP-experienced displayed a clear preference for the female (opposite-sex). By contrast, only QNP-naïve males displayed a same-sex preference. Accordingly, QNP-experienced males were not affected by the conditioning process and continued to prefer females. We discuss the effects of copulation and D2 agonists on the facilitation and/or disruption of conditioned partner preferences. Copyright © 2017 Elsevier B.V. All rights reserved.

Deceptive-like behaviour in dogs (Canis familiaris).

PubMed

Heberlein, Marianne T E; Manser, Marta B; Turner, Dennis C

2017-05-01

Deception, the use of false signals to modify the behaviour of the receiver, occurs in low frequencies even in stable signalling systems. For example, it can be advantageous for subordinate individuals to deceive in competitive situations. We investigated in a three-way choice task whether dogs are able to mislead a human competitor, i.e. if they are capable of tactical deception. During training, dogs experienced the role of their owner, as always being cooperative, and two unfamiliar humans, one acting 'cooperatively' by giving food and the other being 'competitive' and keeping the food for themselves. During the test, the dog had the options to lead one of these partners to one of the three potential food locations: one contained a favoured food item, the other a non-preferred food item and the third remained empty. After having led one of the partners, the dog always had the possibility of leading its cooperative owner to one of the food locations. Therefore, a dog would have a direct benefit from misleading the competitive partner since it would then get another chance to receive the preferred food from the owner. On the first test day, the dogs led the cooperative partner to the preferred food box more often than expected by chance and more often than the competitive partner. On the second day, they even led the competitive partner less often to the preferred food than expected by chance and more often to the empty box than the cooperative partner. These results show that dogs distinguished between the cooperative and the competitive partner, and indicate the flexibility of dogs to adjust their behaviour and that they are able to use tactical deception.

Basolateral amygdala lesions abolish mutual reward preferences in rats.

PubMed

Hernandez-Lallement, Julen; van Wingerden, Marijn; Schäble, Sandra; Kalenscher, Tobias

2016-01-01

In a recent study, we demonstrated that rats prefer mutual rewards in a Prosocial Choice Task. Here, employing the same task, we show that the integrity of basolateral amygdala was necessary for the expression of mutual reward preferences. Actor rats received bilateral excitotoxic (n=12) or sham lesions (n=10) targeting the basolateral amygdala and were subsequently tested in a Prosocial Choice Task where they could decide between rewarding ("Both Reward") or not rewarding a partner rat ("Own Reward"), either choice yielding identical reward to the actors themselves. To manipulate the social context and control for secondary reinforcement sources, actor rats were paired with either a partner rat (partner condition) or with an inanimate rat toy (toy condition). Sham-operated animals revealed a significant preference for the Both-Reward-option in the partner condition, but not in the toy condition. Amygdala-lesioned animals exhibited significantly lower Both-Reward preferences than the sham group in the partner but not in the toy condition, suggesting that basolateral amygdala was required for the expression of mutual reward preferences. Critically, in a reward magnitude discrimination task in the same experimental setup, both sham-operated and amygdala-lesioned animals preferred large over small rewards, suggesting that amygdala lesion effects were restricted to decision making in social contexts, leaving self-oriented behavior unaffected. Copyright © 2015 Elsevier Inc. All rights reserved.

HIV Partner Notification Values and Preferences Among Sex Workers, Fishermen, and Mainland Community Members in Rakai, Uganda: A Qualitative Study.

PubMed

Quinn, Caitlin; Nakyanjo, Neema; Ddaaki, William; Burke, Virginia M; Hutchinson, Naadiya; Kagaayi, Joseph; Wawer, Maria J; Nalugoda, Fred; Kennedy, Caitlin E

2018-01-25

HIV partner notification involves contacting sexual partners of people who test HIV positive and referring them to HIV testing, treatment, and prevention services. To understand values and preferences of key and general populations in Rakai, Uganda, we conducted 6 focus group discussions and 63 in-depth interviews in high prevalence fishing communities and low prevalence mainland communities. Participants included fishermen and sex workers in fishing communities, male and female mainland community members, and healthcare providers. Questions explored three approaches: passive referral, provider referral, and contract referral. Qualitative data were coded and analyzed using a team-based matrix approach. Participants agreed that passive referral was most suitable for primary partners. Provider referral was acceptable in fishing communities for notifying multiple, casual partners. Healthcare providers voiced concerns about limited time, resources, and training for provider-assisted approaches. Options for partner notification may help people overcome barriers to HIV serostatus disclosure and help reach key populations.

Olfactory conditioned same-sex partner preference in female rats: Role of ovarian hormones.

PubMed

Tecamachaltzi-Silvaran, M B; Barradas-Moctezuma, M; Herrera-Covarrubias, D; Carrillo, P; Corona-Morales, A A; Perez, C A; García, L I; Manzo, J; Coria-Avila, Genaro A

2017-11-01

The dopamine D2-type receptor agonist quinpirole (QNP) facilitates the development of conditioned same-sex partner preference in males during cohabitation, but not in ovariectomized (OVX) females, primed with estradiol benzoate (EB) and progesterone (P). Herein we tested the effects of QNP on OVX, EB-only primed females. Females received a systemic injection (every four days) of either saline (Saline-conditioned) or QNP (QNP-conditioned) and then cohabited for 24h with lemon-scented stimulus females (CS+), during three trials. In test 1 (female-female) preference was QNP-free, and females chose between the CS+ female and a novel female. In test 2 (male-female) they chose between the CS+ female and a sexually experienced male. In test 1 Saline-conditioned females displayed more hops & darts towards the novel female, but QNP-conditioned females displayed more sexual solicitations towards the CS+ female. In test 2 Saline-conditioned females displayed a clear preference for the male, whereas QNP-conditioned females displayed what we considered a bisexual preference. We discuss the effect of dopamine and ovarian hormones on the development of olfactory conditioned same-sex preference in females. Copyright © 2017 Elsevier Inc. All rights reserved.

Preferences for prenatal testing among pregnant women, partners and health professionals.

PubMed

Lund, Ida Charlotte Bay; Becher, Naja; Petersen, Olav Bjørn; Hill, Melissa; Chitty, Lyn; Vogel, Ida

2018-05-01

Cell-free DNA testing (cfDNA testing) in maternal plasma has recently been implemented in Danish healthcare. Prior to that we wanted to evaluate the preferences among pregnant women, partners and health professionals regarding cfDNA testing compared with invasive prenatal diagnostics. Responders were recruited at public hospitals in the Central and North Denmark Regions. Stated preferences for prenatal testing were obtained through an online questionnaire incorporating a discrete choice experiment. Test choices differed according to attributes such as risk of miscarriage (none or small) and genetic information provided by the test; simple (Down syndrome only) or comprehensive (chromosomal abnormalities beyond Down syndrome). No risk of miscarriage was the key attribute affecting the preferences of women (n = 315) and partners (n = 102). However, women with experiences of invasive testing placed more emphasis on comprehensive genetic information and less on risk of miscarriage compared with other women. Likewise, foetal medicine experts, obstetricians and sonographers (n = 57) had a greater preference for comprehensive genetic information than midwives who were not directly involved in counselling for prenatal testing (n = 48). As safety seems to affect the majority of pregnant couples' choice behaviour, thorough pre-test counselling by trained health professionals is of paramount importance. Aarhus University and The Foundation of 17-12-1981. This study was registered with the Danish Data Protection Agency (1-16-02-586-13/ 2007-58-0010). Articles published in the DMJ are “open access”. This means that the articles are distributed under the terms of the Creative Commons Attribution Non-commercial License, which permits any non-commercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.

Mommy markets: Racial differences in lesbians' dating preferences for women with children.

PubMed

Rafalow, Matthew H; Kizer, Jessica M

2017-11-22

Recent work shows that race is a critical factor in shaping sexual identities, partner preference, and family formation, suggesting there may be racial differences in whether lesbians already have children at the time that they look for companions. In this study, we draw on a sample of 1,923 lesbians on Match.com to quantitatively test whether there are racial differences in dating preferences for women with children, underscoring implications for family inequality through racial differences in who has children when looking for a partner. We find that Blacks, Latinas, and Asians are more likely than Whites to not only have children but also be open to dating other women with children. This suggests that race differentially structures lesbians' openness to partners with children, and such preferences may be a possible mechanism for racial stratification.

Maximizing HIV partner notification opportunities for index patients and their sexual partners in Malawi.

PubMed

Kamanga, G; Brown, L; Jawati, P; Chiwanda, D; Nyirenda, N

2015-12-01

HIV testing and counselling (HTC) is important to effect positive sexual behaviour change and is an entry point to treatment, care, and psychosocial support. One of the most practical initiatives to increase HTC is to encourage sexual partners of HIV-infected persons to test for HIV. However, partner notification strategies must be feasible in the healthcare setting and acceptable to the population. We conducted a qualitative study during the pilot phase of an HIV partner notification trial to complement its assessment of feasibility and acceptability of methods of partner notification. We performed in-depth interviews with 16 consecutive HIV-positive index participants who consented and their 12 identifiable sexual partners. We also conducted two focus group discussions with healthcare workers to supplement the patient perspectives. In the main study, newly diagnosed HIV cases (index cases) were randomized to one of three methods of partner notification: passive, contract, and provider referral. Clients in the passive referral group were responsible for notifying their sexual partners themselves. Individuals in the contract referral group were given seven days to notify their partners, after which a healthcare provider contacted partners who had not reported for counselling and testing. In the provider group, a healthcare provider notified partners directly. Although most index participants and partners expressed a preference for passive notification, they also highlighted benefits for provider-assisted notification and the universal right for all HIV-exposed persons to know their HIV exposure and benefit from HIV testing and access antiretroviral treatment. Several participants mentioned couples counselling as a way to diffuse tension and get accurate information. All mentioned benefits to HIV testing, including the opportunity to change behaviour. Provider-assisted partner notification is not preferred, but it is acceptable and may complement the passive method of notification. Couples counselling should also be encouraged.

Predictive Validity and Adjustment of Ideal Partner Preferences Across the Transition Into Romantic Relationships.

PubMed

Gerlach, Tanja M; Arslan, Ruben C; Schultze, Thomas; Reinhard, Selina K; Penke, Lars

2017-09-18

Although empirical research has investigated what we ideally seek in a romantic partner for decades, the crucial question of whether ideal partner preferences actually guide our mating decisions in real life has remained largely unanswered. One reason for this is the lack of designs that assess individuals' ideal partner preferences before entering a relationship and then follow up on them over an extended period. In the Göttingen Mate Choice Study (GMCS), a preregistered, large-scale online study, we used such a naturalistic prospective design. We investigated partner preferences across 4 preference domains in a large sample of predominantly heterosexual singles (N = 763, aged 18-40 years) and tracked these individuals across a period of 5 months upon a possible transition into romantic relationships. Attesting to their predictive validity, partner preferences prospectively predicted the characteristics of later partners. This was equally true for both sexes, except for vitality-attractiveness where men's preferences were more predictive of their later partners' standing on this dimension than women's. Self-perceived mate value did not moderate the preference-partner characteristics relations. Preferences proved to be relatively stable across the 5 months interval, yet were less stable for those who entered a relationship. Subgroup analyses using a newly developed indicator of preference adjustment toward (vs. away from) partner characteristics revealed that participants adjusted their preferences downward when partners fell short of initial preferences, but showed no consistent adjustment when partners exceeded them. Results and implications are discussed against the background of ongoing controversies in mate choice and romantic relationship research. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

Acceptability of woman-delivered HIV self-testing to the male partner, and additional interventions: a qualitative study of antenatal care participants in Malawi.

PubMed

Choko, Augustine Talumba; Kumwenda, Moses Kelly; Johnson, Cheryl Case; Sakala, Doreen Wongera; Chikalipo, Maria Chifuniro; Fielding, Katherine; Chikovore, Jeremiah; Desmond, Nicola; Corbett, Elizabeth Lucy

2017-06-26

In the era of ambitious HIV targets, novel HIV testing models are required for hard-to-reach groups such as men, who remain underserved by existing services. Pregnancy presents a unique opportunity for partners to test for HIV, as many pregnant women will attend antenatal care (ANC). We describe the views of pregnant women and their male partners on HIV self-test kits that are woman-delivered, alone or with an additional intervention. A formative qualitative study to inform the design of a multi-arm multi-stage cluster-randomized trial, comprised of six focus group discussions and 20 in-depth interviews, was conducted. ANC attendees were purposively sampled on the day of initial clinic visit, while men were recruited after obtaining their contact information from their female partners. Data were analysed using content analysis, and our interpretation is hypothetical as participants were not offered self-test kits. Providing HIV self-test kits to pregnant women to deliver to their male partners was highly acceptable to both women and men. Men preferred this approach compared with standard facility-based testing, as self-testing fits into their lifestyles which were characterized by extreme day-to-day economic pressures, including the need to raise money for food for their household daily. Men and women emphasized the need for careful communication before and after collection of the self-test kits in order to minimize the potential for intimate partner violence although physical violence was perceived as less likely to occur. Most men stated a preference to first self-test alone, followed by testing as a couple. Regarding interventions for optimizing linkage following self-testing, both men and women felt that a fixed financial incentive of approximately USD$2 would increase linkage. However, there were concerns that financial incentives of greater value may lead to multiple pregnancies and lack of child spacing. In this low-income setting, a lottery incentive was considered overly disappointing for those who receive nothing. Phone call reminders were preferred to short messaging service. Woman-delivered HIV self-testing through ANC was acceptable to pregnant women and their male partners. Feedback on additional linkage enablers will be used to alter pre-planned trial arms.

Female partner preferences enhance offspring ability to survive an infection.

PubMed

Raveh, Shirley; Sutalo, Sanja; Thonhauser, Kerstin E; Thoß, Michaela; Hettyey, Attila; Winkelser, Friederike; Penn, Dustin J

2014-01-23

It is often suggested that mate choice enhances offspring immune resistance to infectious diseases. To test this hypothesis, we conducted a study with wild-derived house mice (Mus musculus musculus) in which females were experimentally mated either with their preferred or non-preferred male, and their offspring were infected with a mouse pathogen, Salmonella enterica (serovar Typhimurium). We found that offspring sired by preferred males were significantly more likely to survive the experimental infection compared to those sired by non-preferred males. We found no significant differences in the pathogen clearance or infection dynamics between the infected mice, suggesting that offspring from preferred males were better able to cope with infection and had improved tolerance rather than immune resistance. Our results provide the first direct experimental evidence within a single study that partner preferences enhance offspring resistance to infectious diseases.

Sexual orientation of male mouse offspring prenatally exposed to ethanol.

PubMed

Watabe, T; Endo, A

1994-01-01

Pregnant mice were intubated with either low (2 g/kg) or high (4 g/kg) dose of ethanol twice daily throughout the last third of the gestational period (from dg14 to dg18: gestational day; plug positive = dg 0). Ninety days after birth, the sexual orientation test was conducted on male offspring. This test was designed to observe a two-choice preference for either male or female partners in a setting in which the test animal could move freely between the two incentive compartments within which a stud male and an estrous female had been placed. We found that young adult males that had been exposed to ethanol prenatally have a decreased preference for the opposite sex and an increased preference for the same sex as a partner, although their physical development was apparently unaffected.

Preferred and Actual Relative Height among Homosexual Male Partners Vary with Preferred Dominance and Sex Role

PubMed Central

Valentova, Jaroslava Varella; Stulp, Gert; Třebický, Vít; Havlíček, Jan

2014-01-01

Previous research has shown repeatedly that human stature influences mate preferences and mate choice in heterosexuals. In general, it has been shown that tall men and average height women are most preferred by the opposite sex, and that both sexes prefer to be in a relationship where the man is taller than the woman. However, little is known about such partner preferences in homosexual individuals. Based on an online survey of a large sample of non-heterosexual men (N = 541), we found that the majority of men prefer a partner slightly taller than themselves. However, these preferences were dependent on the participant’s own height, such that taller men preferred shorter partners, whereas shorter men preferred taller partners. We also examined whether height preferences predicted the preference for dominance and the adoption of particular sexual roles within a couple. Although a large proportion of men preferred to be in an egalitarian relationship with respect to preferred dominance (although not with respect to preferred sexual role), men that preferred a more dominant and more “active” sexual role preferred shorter partners, whereas those that preferred a more submissive and more “passive” sexual role preferred taller partners. Our results indicate that preferences for relative height in homosexual men are modulated by own height, preferred dominance and sex role, and do not simply resemble those of heterosexual women or men. PMID:24466136

Preferred and actual relative height among homosexual male partners vary with preferred dominance and sex role.

PubMed

Valentova, Jaroslava Varella; Stulp, Gert; Třebický, Vít; Havlíček, Jan

2014-01-01

Previous research has shown repeatedly that human stature influences mate preferences and mate choice in heterosexuals. In general, it has been shown that tall men and average height women are most preferred by the opposite sex, and that both sexes prefer to be in a relationship where the man is taller than the woman. However, little is known about such partner preferences in homosexual individuals. Based on an online survey of a large sample of non-heterosexual men (N = 541), we found that the majority of men prefer a partner slightly taller than themselves. However, these preferences were dependent on the participant's own height, such that taller men preferred shorter partners, whereas shorter men preferred taller partners. We also examined whether height preferences predicted the preference for dominance and the adoption of particular sexual roles within a couple. Although a large proportion of men preferred to be in an egalitarian relationship with respect to preferred dominance (although not with respect to preferred sexual role), men that preferred a more dominant and more "active" sexual role preferred shorter partners, whereas those that preferred a more submissive and more "passive" sexual role preferred taller partners. Our results indicate that preferences for relative height in homosexual men are modulated by own height, preferred dominance and sex role, and do not simply resemble those of heterosexual women or men.

Witnessing Partner Violence: Exploring the Role of Partner Preferences on Dating Violence.

PubMed

Gonzalez-Mendez, Rosaura; Yanes, José M; Ramírez-Santana, Gustavo

2015-06-02

Research has shown that witnessing partner violence (WPV) increases the likelihood of experiencing or perpetrating violence in later romantic relationships, but little is known about the mechanisms underlying this process. This study examines the relationships between preference for unsuitable partners and teen dating violence (TDV) among adolescents who have witnessed parental violence or not. Attachment was also considered. Participants were 356 adolescents, both witnesses and non-witnesses of partner violence. Results showed no difference in preferences (for good, risky, or loving partners) between the two groups. However, preference for unsuitable partners did significantly predict TDV perpetration and victimization, but only among witnesses. Also, loving-partner preference moderates the relationship between WPV and TDV perpetration among highly avoidant witnesses. Findings indicate a new avenue for prevention through targeting partner preferences. © The Author(s) 2015.

Partner Loss in Monogamous Rodents: Modulation of Pain and Emotional Behavior in Male Prairie Voles.

PubMed

Osako, Yoji; Nobuhara, Reiko; Arai, Young-Chang P; Tanaka, Kenjiro; Young, Larry J; Nishihara, Makoto; Mitsui, Shinichi; Yuri, Kazunari

2018-01-01

Pain is modulated by psychosocial factors, and social stress-induced hyperalgesia is a common clinical symptom in pain disorders. To provide a new animal model for studying social modulation of pain, we examined pain behaviors in monogamous prairie voles experiencing partner loss. After cohabitation with novel females, males (n = 79) were divided into two groups on the basis of preference test scores. Half of the males of each group were separated from their partner (loss group), whereas the other half remained paired (paired group). Thus, males from both groups experienced social isolation. Open field tests, plantar tests, and formalin tests were then conducted on males to assess anxiety and pain-related behaviors. Loss males showing partner preferences (n = 20) displayed a significant increase in anxiety-related behavior in the open-field test (central area/total distance: 13.65% [1.58%] for paired versus 6.45% [0.87%] for loss; p < .001), a low threshold of thermal stimulus in the plantar test (withdrawal latencies: 9.69 [0.98] seconds for paired versus 6.15 [0.75] seconds for loss; p = .037), and exacerbated pain behaviors in the formalin test (total number of lifts: 40.33 [4.46] for paired versus 54.42 [1.91] for loss; p = .042) as compared with paired males (n = 20). Thermal thresholds in the plantar test significantly correlated with anxiety-related behavior in the open-field test (r = 0.64). No such differences were observed in the males that did not display partner preferences (r = 0.15). Results indicate that social bonds and their disruption, but not social housing without bonding followed by isolation, modulate pain and emotion in male prairie voles. The prairie vole is a useful model for exploring the neural mechanisms by which social relationships contribute to pain and nociceptive processing in humans.

The Relationship between Partners' Family-Size Preferences in Southern Malawi.

PubMed

Yeatman, Sara; Sennott, Christie

2014-09-01

Studies of the relative influence of partners' fertility preferences on behaviors tend to treat preferences as fixed, largely independent traits despite existing theoretical arguments and empirical evidence suggesting that they are moving targets that may be jointly developed within relationships. In this study, we use couple-level panel data from married and unmarried young adults in southern Malawi to examine the relationship between partners' family-size preferences. We find evidence of assortative mating: young Malawians are more likely to partner with individuals who have similar family-size goals. Additionally, although partners' family-size preferences do not perfectly converge, changes among men's and women's preferences are significantly more likely to be "toward" than "away from" those of their partner. Our findings point to a need for studies regarding the relative influence of partners on reproductive outcomes to consider the interdependence of partners' preferences and the varied ways in which partners can influence shared reproductive behaviors. © 2014 The Population Council, Inc.

Conditioned same-sex partner preference in male rats is facilitated by oxytocin and dopamine: effect on sexually dimorphic brain nuclei.

PubMed

Triana-Del Rio, Rodrigo; Tecamachaltzi-Silvarán, Miriam B; Díaz-Estrada, Victor X; Herrera-Covarrubias, Deissy; Corona-Morales, Aleph A; Pfaus, James G; Coria-Avila, Genaro A

2015-04-15

Conditioned same-sex partner preference can develop in male rats that undergo cohabitation under the effects of quinpirole (QNP, D2 agonist). Herein, we assessed the development of conditioned same-sex social/sexual preference in males that received either nothing, saline, QNP, oxytocin (OT), or QNP+OT during cohabitation with another male (+) or single-caged (-). This resulted in the following groups: (1) Intact-, (2) Saline+, (3) QNP-, (4) OT-, (5) QNP+, (6) OT+ and (7) QNP/OT+. Cohabitation occurred during 24h in a clean cage with a male partner that bore almond scent on the back as conditioned stimulus. This was repeated every 4 days for a total of three trials. Social and sexual preference were assessed four days after the last conditioning trial in a drug-free test in which experimental males chose between the scented familiar male and a novel sexually receptive female. Results showed that males from groups Intact-, Saline+, QNP- and OT- displayed a clear preference for the female (opposite-sex), whereas groups QNP+, OT+ and QNP/OT+ displayed socio/sexual preference for the male partner (same-sex). In Experiment 2, the brains were processed for Nissl dye and the area size of two sexually dimorphic nuclei (SDN-POA and SON) was compared between groups. Males from groups OT-, OT+ and QNP/OT+ expressed a smaller SDN-POA and groups QNP+ and QNP/OT+ expressed a larger SON. Accordingly, conditioned same-sex social/sexual partner preference can develop during cohabitation under enhanced D2 or OT activity but such preference does not depend on the area size of those sexually dimorphic nuclei. Copyright © 2015 Elsevier B.V. All rights reserved.

Brain activation associated to olfactory conditioned same-sex partner preference in male rats.

PubMed

Coria-Avila, Genaro A; Cibrian-Llanderal, Tamara; Díaz-Estrada, Victor X; García, Luis I; Toledo-Cárdenas, Rebeca; Pfaus, James G; Manzo, Jorge

2018-03-01

Sexual preferences can be strongly modified by Pavlovian learning. For instance, olfactory conditioned same-sex partner preference can occur when a sexually naïve male cohabits with an scented male during repeated periods under the effects of enhanced D2-type activity. Preference is observed days later via social and sexual behaviors. Herein we explored brain activity related to learned same-sex preference (Fos-Immunoreactivity, IR) following exposure to a conditioned odor paired with same-sex preference. During conditioning trials males received either saline or the D2-type receptor agonist quinpirole (QNP) and cohabitated during 24 h with a stimulus male that bore almond scent on the back as conditioned stimulus. This was repeated every 4 days, for a total of three trials. In a drug-free final test we assessed socio/sexual partner preference between the scented male and a receptive female. The results indicated that QNP-conditioned males developed a same-sex preference observed via contact, time spent, olfactory investigations, and non-contact erections. By contrast, saline-conditioned and intact (non-exposed to conditioning) males expressed an unconditioned preference for the female. Four days later the males were exposed to almond scent and their brains were processed for Fos-IR. Results indicated that the QNP-conditioned group expressed more Fos-IR in the nucleus accumbens (AcbSh), medial preoptic area (MPA), piriform cortex (Pir) and ventromedial nucleus of the hypothalamus (VMH) as compared to saline-conditioned. Intact males expressed the lowest Fos-IR in AcbSh and VMH, but the highest in MPA and Pir. We discuss the role of these areas in the learning process of same-sex partner preferences and olfactory discrimination. Copyright © 2018 Elsevier Inc. All rights reserved.

Temporary inactivation of NCM, an auditory region, increases social interaction and decreases song perception in female zebra finches.

PubMed

Tomaszycki, Michelle L; Blaine, Sara K

2014-10-01

The caudomedial nidopallium (NCM) is an important site for the storage of auditory memories, particularly song, in passerines. In zebra finches, males sing and females do not, but females use song to choose mates. The extent to which the NCM is necessary for female mate choice is not well understood. To investigate the role of NCM in partner preferences, adult female zebra finches were bilaterally implanted with chronic cannulae directed at the NCM. Lidocaine, a sodium channel blocker, or saline (control) was infused into the NCM of females using a repeated measures design. Females were then tested in 3 separate paradigms: song preference, sexual partner preference, and pairing behavior/partner preference. We hypothesized that lidocaine would increase interactions with males by decreasing song discrimination and that this would be further evident in the song discrimination task. Indeed, females, when treated with lidocaine, had no preference for males singing unaltered song over males singing distorted song. These same females, when treated with saline, demonstrated a significant preference for males singing normal song. Furthermore, females affiliated with males more after receiving lidocaine than after receiving saline in the pairing paradigm, although neither treatment led to the formation of a partner preference. Our results support the hypothesis that NCM plays an important role not only in song discrimination, but also affiliation with a male. Copyright © 2014 Elsevier B.V. All rights reserved.

Homosexual mating preferences from an evolutionary perspective: sexual selection theory revisited.

PubMed

Gobrogge, Kyle L; Perkins, Patrick S; Baker, Jessica H; Balcer, Kristen D; Breedlove, S Marc; Klump, Kelly L

2007-10-01

Studies in evolutionary psychology and sexual selection theory show that heterosexual men prefer younger mating partners than heterosexual women in order to ensure reproductive success. However, previous research has generally not examined differences in mating preferences as a function of sexual orientation or the type of relationship sought in naturalistic settings. Given that homosexual men seek partners for reasons other than procreation, they may exhibit different mating preferences than their heterosexual counterparts. Moreover, mating preferences may show important differences depending on whether an individual is seeking a long-term versus a short-term relationship. The purpose of the present study was to examine these issues by comparing partner preferences in terms of age and relationship type between homosexual and heterosexual men placing internet personal advertisements. Participants included 439 homosexual and 365 heterosexual men who placed internet ads in the U.S. or Canada. Ads were coded for the participant's age, relationship type (longer-term or short-term sexual encounter) sought, and partner age preferences. Significantly more homosexual than heterosexual men sought sexual encounters, although men (regardless of sexual orientation) seeking sexual encounters preferred a significantly wider age range of partners than men seeking longer-term relationships. These findings suggest that partner preferences are independent of evolutionary drives to procreate, since both types of men preferred similar ages in their partners. In addition, they highlight the importance of examining relationship type in evolutionary studies of mating preferences, as men's partner preferences show important differences depending upon the type of relationship sought.

Breaking bonds in male prairie vole: Long-term effects on emotional and social behavior, physiology, and neurochemistry

PubMed Central

Sun, P; Smith, AS; Lei, K; Liu, Y; Wang, Z

2014-01-01

Social relationships are essential for many fundamental aspects of life while bond disruption can be detrimental to mental and physical health. Male prairie voles form enduring social bonds with their female partners, allowing the evaluation of partner loss on behavior, physiology, and neurochemistry. Males were evaluated for partner preference formation induced by 24 h of mating, and half were separated from their partner for 4 wk. In Experiment 1, partner loss significantly increased anxiety-like behaviors in the elevated plus maze and light-dark box tests and marginally increased depressive-like behaviors in the forced swim test. In addition, while intruder-directed aggression is common in pair bonded prairie voles, separated males were affiliative and lacked aggression toward an unfamiliar female and an intruding male conspecific. Partner loss increased the density of oxytocin-immunoreactivity (-ir), vasopressin-ir, and corticotrophin-releasing hormone-ir cells in the paraventricular nucleus of the hypothalamus and oxytocin-ir cells in the supraoptic nucleus. Tyrosine hydroxylase-ir was not affected. In Experiment 2, partner preference was observed after 2 wk of partner loss but eliminated after 4 wk partner loss. Body weight gain and plasma corticosterone concentrations were elevated throughout the 4 wk. No effects were observed for plasma oxytocin or vasopressin. Together, partner loss elicits anxiety-like and depression-like behaviors, disrupts bond-related behaviors, and alters neuropeptide systems that regulate such behaviors. Thus, partner loss in male prairie voles may provide a model to better understand the behavior, pathology, and neurobiology underlying partner loss and grief. PMID:24561258

Development of sexual partner preference in the zebra finch: a socially monogamous, pair-bonding animal.

PubMed

Adkins-Regan, Elizabeth

2002-02-01

Zebra finches are group living socially monogamous birds that pair for life. Partner preference is strongly sexually differentiated: males prefer to pair with females and females prefer to pair with males. Where do these preferences come from? What occurs during development that produces adult birds that pair with the opposite sex? There is surprisingly little animal research that addresses such questions, especially in species that form pair-bonds. Our research program focuses on two processes that may be involved in the development of adult sexual-partner preference: (1) early (possibly organizational) hormone actions and (2) social experience. Females treated with estradiol or fadrozole (an estrogen synthesis inhibitor) as nestlings or embryos showed masculinized sexual-partner preference as adults, preferring to pair with other females even when potential male partners were available. Removal of adult males from breeding cages, so that young birds were not exposed to males or to male-female pairs during development, eliminated sex-typical partner preferences; these birds were equally interested in both sexes and were more likely than controls to pair with a same-sex partner. These experiments provide insights into the development of sexual-partner preference that may be applicable to other group living pair-bonding animals with biparental care. They also contribute to the foundation of animal research that is necessary for a biological approach to understanding the pair-bonding component of human sexual orientation.

Sexual partner testing for HIV to eliminate mother-to-child HIV transmission: a needs assessment in an urban hospital community clinic.

PubMed

Yee, L M; Goldberger, A R; Garcia, P M; Miller, E S

2017-01-01

To characterize pregnant patients' knowledge, attitudes and preferences regarding antenatal HIV testing for themselves and their sexual partners. Observational, mixed methods study of HIV-negative pregnant women from a university-based urban clinic. Participants completed an anonymous survey about HIV testing for themselves and their partners. Descriptive statistics, bivariable analyses, multivariable logistic regression and qualitative thematic analysis were utilized. One hundred and forty-two patients (mean age 28.6±5.5 years) participated. A majority (57.7%) were married or partnered, and 92.9% reported having at least one current sexual partner. Although a majority (62.8%) reported their partner had a prior HIV test, and 93.0% of these women were aware of test results, only 20.7% reported partner testing had occurred in the past 6 months. Women who had a prior HIV test, who were older or who were non-white were more likely to be aware of their partner's HIV status. A majority (66.9%) of women desired knowledge of their partner's current status and 76.0% believed their partners would like to know his HIV status; in addition, 74% were interested in receiving partner testing at the site of prenatal care. Qualitative analysis demonstrated that health concerns and believing HIV knowledge is important to the relationship were motivators for desiring partner testing. In this urban community, a majority of pregnant women do not know HIV test results of their sexual partner during the current pregnancy. Women desired to know their partner's HIV status and were receptive to partner testing at the site of prenatal care or other locations. Partner testing may be a critical step toward elimination of seroconversion during pregnancy and maternal-to-child HIV transmission.

Can we improve partner notification rates through expedited partner therapy in the UK? Findings from an exploratory trial of Accelerated Partner Therapy (APT).

PubMed

Estcourt, Claudia; Sutcliffe, Lorna; Cassell, Jackie; Mercer, Catherine H; Copas, Andrew; James, Laura; Low, Nicola; Horner, Patrick; Clarke, Michael; Symonds, Merle; Roberts, Tracy; Tsourapas, Angelos; Johnson, Anne M

2012-02-01

To develop two new models of expedited partner therapy for the UK, and evaluate them for feasibility, acceptability and preliminary outcome estimates to inform the design of a randomised controlled trial (RCT). Two models of expedited partner therapy (APTHotline and APTPharmacy), known as 'Accelerated Partner Therapy' (APT) were developed. A non-randomised comparative study was conducted of the two APT models and routine partner notification (PN), in which the index patient chose the PN option for his/her partner(s) in two contrasting clinics. The proportion of contactable partners treated when routine PN was chosen was 42/117 (36%) and was significantly higher if either APT option was chosen: APTHotline 80/135 (59%), p=0.003; APTPharmacy 29/44 (66%) p=0.001. However, partner treatment was often achieved through other routes. Although 40-60% of partners in APT groups returned urine samples for sexually transmitted infection (STI) testing, almost none accessed HIV and syphilis testing. APT options appear to facilitate faster treatment of sex partners than routine PN. Preferences and recruitment rates varied between sites, related to staff satisfaction with existing routine PN; approach to consent; and possibly, characteristics of local populations. Both methods of APT were feasible and acceptable to many patients and led to higher rates of partner treatment than routine PN. Preferences and recruitment rates varied greatly between settings, suggesting that organisational and cultural factors may have an important impact on the feasibility of an RCT and on outcomes. Mindful of these factors, it is proposed that APT should now be evaluated in a cluster RCT.

The proportions of heterosexual and homosexual pedophiles among sex offenders against children: an exploratory study.

PubMed

Freund, K; Watson, R J

1992-01-01

Previous investigations have indicated that the ratio of sex offenders against female children vs. offenders against male children is approximately 2:1, while the ratio of gynephiles to androphiles among the general population is approximately 20:1. The present study investigated whether the etiology of preferred partner sex among pedophiles is related to the etiology of preferred partner sex among males preferring adult partners. Using phallometric test sensitivities to calculate the proportion of true pedophiles among various groups of sex offenders against children, and taking into consideration previously reported mean numbers of victims per offender group, the ratio of heterosexual to homosexual pedophiles was calculated to be approximately 11:1. This suggests that the resulting proportion of true pedophiles among persons with a homosexual erotic development is greater than that in persons who develop heterosexually. This, of course, would not indicate that androphilic males have a greater propensity to offend against children.

Methamphetamine enhances sexual behavior in female rats.

PubMed

Winland, Carissa; Haycox, Charles; Bolton, Jessica L; Jampana, Sumith; Oakley, Benjamin J; Ford, Brittany; Ornelas, Laura; Burbey, Alexandra; Marquette, Amber; Frohardt, Russell J; Guarraci, Fay A

2011-06-01

The present study evaluated the effects of methamphetamine (MA) on sexual behavior in female rats. In Experiment 1, ovariectomized, hormone-primed rats were injected with MA (1.0mg/kg, i.p.) or saline prior to a test for mate choice wherein females could mate with two males simultaneously. Female rats treated with saline returned to their preferred mate faster after receiving intromissions and visited their preferred mate at a higher rate than their non-preferred mate. In contrast, MA-treated female rats spent a similar amount of time with their preferred and non-preferred mate and failed to return to their preferred mate faster than to their non-preferred mate following intromissions. Two weeks later, the females received the same drug treatment but were tested for partner preference wherein females could spend time near a male or female stimulus rat. All subjects spent more time near the male stimulus than the female stimulus. However, the MA-treated rats visited the male stimulus more frequently and spent less time near the female stimulus than the saline-treated rats. Similar to Experiment 1, female rats in Experiment 2 were tested for mate choice and then two weeks later tested for partner preference; however, females received three daily injections of MA (1.0mg/kg, i.p.) or saline. Females treated chronically with MA returned to both males faster following intromissions than females treated with saline, independent of preference (i.e., preferred mate and non-preferred mate). Furthermore, MA-treated rats were more likely to leave either male (i.e., preferred or non-preferred mate) than saline-treated rats after receiving sexual stimulation. Although MA-treated subjects spent more time near the male stimulus than the female stimulus, they spent less time near either when compared to saline-treated subjects. The present results demonstrate that MA affects sexual behavior in female rats partly by increasing locomotion and partly by directly affecting sexual behavior. Copyright © 2011 Elsevier Inc. All rights reserved.

Domestic violence shapes Colombian women's partner choices.

PubMed

Borras-Guevara, Martha Lucia; Batres, Carlota; Perrett, David I

2017-01-01

Potential protection from violence has been suggested as an explanation for women's preferences for more masculine partners. Previous studies, however, have not considered that violence may be multi-modal, and hence come from different sources. Therefore, we tested the effect of different fears of violence (i.e. vulnerability to public crime, likelihood of within-partnership violence) on masculinity preferences of women from Colombia, a country known for its high rates of violence. Eighty-three adult heterosexual women (mean age ± SD = 26.7 ± 6.01) answered a survey that included questions about health (e.g. frequency of illnesses during the last year and during childhood), access to media (e.g. time spent watching television, frequency of internet use), education (i.e. highest level achieved) and violence perceptions. Participants' masculinity preferences for Salvadoran, European and Colombian male faces were recorded. Factor analysis revealed two different factors for the answers to questions related to violence. One factor loaded mostly on questions related to public violence and the second factor related to domestic violence. We found that women with higher scores on the domestic violence factor preferred significantly less masculine Colombian male faces. Even after controlling for participant age, education, access to media (TV and internet) and health-related factors, the domestic violence factor contributed significantly to explaining masculinity preferences. The results presented here suggest that women's preferences for masculinity may be a strategy to avoid aggressive partners and that the source of violence matters in mate choice. Women who perceive higher risks of domestic violence prefer less masculine looking partners. Using an experimental approach, we show that Colombian women who feel more in danger of violence within partnership prefer the faces of less masculine males. This was true even after controlling for women's education level, health and access to media.

Veteran preferences for romantic partner involvement in depression treatment.

PubMed

Hershenberg, Rachel; Mavandadi, Shahrzad; Klaus, Johanna R; Oslin, David W; Sayers, Steven L

2014-01-01

The objective was to examine Veterans' preferences for romantic partner involvement in depression treatment and patient characteristics that are associated with the likelihood of preferred involvement. One hundred seventy-nine Veterans who met criteria for major or minor depression reported if they wanted their partners to give them medication reminders, accompany them to appointments, and speak with their treatment provider. Greater depression severity and wanting a partner to be less critical and more encouraging were associated with greater preferences for involvement. Veterans may view their partners' involvement in depression treatment as one opportunity for partners to decrease blame or understand more about their problems. Published by Elsevier Inc.

Client perspectives on design and implementation of a couples-based intervention to reduce sexual and drug risk behaviors among female sex workers and their noncommercial partners in Tijuana and Ciudad Juárez, México

PubMed Central

Palinkas, Lawrence A.; Robertson, Angela M.; Syvertsen, Jennifer L.; Hernandez, Daniel O.; Ulibarri, Monica D.; Rangel, M. Gudelia; Martinex, Gustavo; Strathdee, Steffanie A.

2014-01-01

This mixed-methods study examined the acceptability of a hypothetical couples-based HIV prevention program for female sex workers and their intimate (non-commercial) male partners in Mexico. Among 320 participants, 67% preferred couples-based over individual programs, particularly among men. Reasons cited for preferring couples-based programs included convenience and health benefits for both partners. Participants reported that they would benefit from general health information and services, HIV counseling and testing, job training (particularly for men) and other services. However, qualitative interviews revealed that barriers relating to the environment (i.e., poor access to services), providers (i.e., lack of a therapeutic alliance), and intimate relationships (i.e., mistrust or instability) would need to be addressed before such a program could be successfully implemented. Despite women’s concerns about privacy and men’s preferences for gender-specific services, couples-based HIV prevention programs were largely acceptable to female sex workers and their intimate male partners. PMID:24510364

Is Romantic Desire Predictable? Machine Learning Applied to Initial Romantic Attraction.

PubMed

Joel, Samantha; Eastwick, Paul W; Finkel, Eli J

2017-10-01

Matchmaking companies and theoretical perspectives on close relationships suggest that initial attraction is, to some extent, a product of two people's self-reported traits and preferences. We used machine learning to test how well such measures predict people's overall tendencies to romantically desire other people (actor variance) and to be desired by other people (partner variance), as well as people's desire for specific partners above and beyond actor and partner variance (relationship variance). In two speed-dating studies, romantically unattached individuals completed more than 100 self-report measures about traits and preferences that past researchers have identified as being relevant to mate selection. Each participant met each opposite-sex participant attending a speed-dating event for a 4-min speed date. Random forests models predicted 4% to 18% of actor variance and 7% to 27% of partner variance; crucially, however, they were unable to predict relationship variance using any combination of traits and preferences reported before the dates. These results suggest that compatibility elements of human mating are challenging to predict before two people meet.

Exposure to methylphenidate during peri-adolescence affects endocrine functioning and sexual behavior in female Long-Evans rats.

PubMed

Guarraci, Fay A; Holifield, Caroline; Morales-Valenzuela, Jessica; Greene, Kasera; Brown, Jeanette; Lopez, Rebecca; Crandall, Christina; Gibbs, Nicole; Vela, Rebekah; Delgado, Melissa Y; Frohardt, Russell J

2016-03-01

The present study was designed to test the effects of methylphenidate (MPH) exposure on the maturation of endocrine functioning and sexual behavior. Female rat pups received either MPH (2.0mg/kg, i.p.) or saline twice daily between postnatal days 20-35. This period of exposure represents the time just prior to puberty as well as puberty onset. Approximately five weeks after the last injection of MPH or saline, female subjects were hormone-primed and tested during their first sexual experience. Subjects were given the choice to interact with a sexually active male or a sexually receptive female rat (i.e., the partner-preference test). The partner-preference paradigm allows us to assess multiple aspects of female sexual behavior. MPH exposure during peri-adolescence delayed puberty and, when mated for the first time, affected sexual behavior (e.g., increased time spent with the male stimulus and decreased the likelihood of leaving after mounts) during the test of partner preference. When monitoring estrous cyclicity, female subjects treated with MPH during peri-adolescence frequently experienced irregular estrous cycles. The results of the present study suggest that chronic exposure to a therapeutic dose of MPH around the onset of puberty alters long-term endocrine functioning, but with hormone priming, increases sensitivity to sexual stimuli. Copyright © 2015 Elsevier Inc. All rights reserved.

Effective Partnering in Conducting Benefit-Risk Patient Preference Studies: Perspectives From a Patient Advocacy Organization, a Pharmaceutical Company, and Academic Stated-Preference Researchers.

PubMed

Wolka, Anne M; Fairchild, Angelyn O; Reed, Shelby D; Anglin, Greg; Johnson, F Reed; Siegel, Michael; Noel, Rebecca

2017-01-01

Formal incorporation of patients' perspectives is becoming increasingly important in medical product development and decision making. This article shares practical advice regarding how patient advocacy organizations, the pharmaceutical industry, and academic experts in stated-preference research can effectively partner on benefit-risk patient preference studies. The authors partnered on a benefit-risk patient preference study related to the treatment of psoriasis. The authors from Duke Clinical Research Institute also share their experiences in collaborating with numerous other organizations in conducting benefit-risk patient preference studies. Upon initiation of the study partnership with appropriate experts, training is important to ensure all collaborators have a common understanding of the methodology, what objectives stated-preference methods can support, and expectations for the project. To the extent possible, partners should align on and document relevant clinical and logistical details prior to study implementation. During study implementation, partners should use good communication practices and document and maintain a record of any changes to the original plan. Presentation of the study results should be tailored to the particular audience, with the appropriate partner leading the presentation based on its format and audience. Partners from patient advocacy organizations, the pharmaceutical industry, and academia can effectively collaborate on benefit-risk patient preference studies with sufficient planning and ongoing communication. This article is a call for action for other organizations to engage in sharing of experiences regarding effective partnering in quantifying patient preferences in medical product development.

Simulation-based mentalizing generates a "proxy" self-reference effect in memory.

PubMed

Allan, Kevin; Morson, Suzannah; Dixon, Susan; Martin, Douglas; Cunningham, Sheila J

2017-06-01

The self-reference effect (SRE) in memory is thought to depend on specialized mechanisms that enhance memory for self-relevant information. We investigated whether these mechanisms can be engaged "by proxy" when we simulate other people, by asking participants to interact with two virtual partners: one similar and one dissimilar to self. Participants viewed pairs of objects and picked one for themselves, for their similar partner, or their dissimilar partner. A surprise memory test followed that required participants to identify which object of each pair was chosen, and for whom. Finally, participants were shown both partners' object pairs again, and asked to indicate their personal preference. Four key findings were observed. Overlap between participants' own choice and those made for their partner was significantly higher for the similar than the dissimilar partner, revealing participants' use of their own preferences to simulate the similar partner. Recollection of chosen objects was significantly higher for self than for both partners and, critically, was significantly higher for similar than dissimilar partners. Source confusion between self and the similar partner was also higher. These findings suggest that self-reference by proxy enhances memory for non-self-relevant material, and we consider the theoretical implications for functional interpretation of the SRE.

Partner notification of sexually transmitted diseases: practices and preferences.

PubMed

Gursahaney, Priya R; Jeong, Kwonho; Dixon, Bruce W; Wiesenfeld, Harold C

2011-09-01

Timely notification and treatment of sex partners exposed to a sexually transmitted disease (STD) is essential to reduce reinfection and transmission. Our objectives were to determine factors associated with patient-initiated notification of sex partners and preferences regarding standard partner referral versus expedited partner therapy (EPT). Participants diagnosed with gonorrhea, chlamydia, trichomoniasis, or nongonococcal urethritis within the previous year were administered a baseline survey asking about demographics, sexual history, and partner treatment preferences (standard partner referral vs. EPT). They identified up to 4 sex partners within the past 2 months, and answered questions on relationship characteristics, quality, and notification self-efficacy. At follow-up, participants with a current STD were asked whether they notified their partners. Generalized estimating equations were used to evaluate the associations between predictor variables and partner notification. Of the 201 subjects enrolled, 157 had a current STD diagnosis, and 289 sex partners were identified. The rate of successful partner notification was 77.3% (157/203 sex partners). Partner notification was increased if the subject had a long-term relationship with a sex partner (odds ratio: 3.07; 95% confidence interval: 1.43, 6.58), considered the partner to be a main partner (odds ratio: 2.53; 95% confidence interval: 1.43, 6.58), or had increased notification self-efficacy. Overall, participants did not prefer EPT over standard referral; however, females, those with higher education levels, and those with a prior STD preferred EPT. Patient-initiated partner referral is more successful in patients with increased self-efficacy who have stronger interpersonal relationships with their sex partners.

Wired on steroids: sexual differentiation of the brain and its role in the expression of sexual partner preferences.

PubMed

Alexander, Brenda M; Skinner, Donal C; Roselli, Charles E

2011-01-01

The preference to seek out a sexual partner of the opposite sex is robust and ensures reproduction and survival of the species. Development of female-directed partner preference in the male is dependent on exposure of the developing brain to gonadal steroids synthesized during critical periods of sexual differentiation of the central nervous system. In the absence of androgen exposure, a male-directed partner preference develops. The development and expression of sexual partner preference has been extensively studied in rat, ferret, and sheep model systems. From these models it is clear that gonadal testosterone, often through estrogenic metabolites, cause both masculinization and defeminization of behavior during critical periods of brain development. Changes in the steroid environment during these critical periods result in atypical sexual partner preference. In this manuscript, we review the major findings which support the hypothesis that the organizational actions of sex steroids are responsible for sexual differentiation of sexual partner preferences in select non-human species. We also explore how this information has helped to frame our understanding of the biological influences on human sexual orientation and gender identity.

Wired on Steroids: Sexual Differentiation of the Brain and Its Role in the Expression of Sexual Partner Preferences

PubMed Central

Alexander, Brenda M.; Skinner, Donal C.; Roselli, Charles E.

2011-01-01

The preference to seek out a sexual partner of the opposite sex is robust and ensures reproduction and survival of the species. Development of female-directed partner preference in the male is dependent on exposure of the developing brain to gonadal steroids synthesized during critical periods of sexual differentiation of the central nervous system. In the absence of androgen exposure, a male-directed partner preference develops. The development and expression of sexual partner preference has been extensively studied in rat, ferret, and sheep model systems. From these models it is clear that gonadal testosterone, often through estrogenic metabolites, cause both masculinization and defeminization of behavior during critical periods of brain development. Changes in the steroid environment during these critical periods result in atypical sexual partner preference. In this manuscript, we review the major findings which support the hypothesis that the organizational actions of sex steroids are responsible for sexual differentiation of sexual partner preferences in select non-human species. We also explore how this information has helped to frame our understanding of the biological influences on human sexual orientation and gender identity. PMID:22654808

Effect of Female-Biased Sex Ratios on Female Homosexual Behavior in Japanese Macaques: Evidence for the "Bisexual Preference Hypothesis".

PubMed

Leca, Jean-Baptiste; Gunst, Noëlle; Huffman, Michael A; Vasey, Paul L

2015-11-01

We aimed to explain the frequent and prevalent female homosexual behavior in the context of female-biased operational sex ratios (OSR) and qualified sex ratios (Q) in a free-ranging group of Japanese macaques (Macaca fuscata) living at Arashiyama-Kyoto, Japan. Our data included the average availability of sexually mature males during females' putative fertile period (OSR), the ratio of sexually mature males to sexually mature females (Q), as well as heterosexual and female homosexual solicitations and consortships collected during 13 mating seasons from 136 females. Our results did not support the "heterosexual deprivation hypothesis," which holds that female homosexual behavior is attributable to a shortage of male mates. Likewise, our results did not support the "lack of opposite-sex sexual competitor hypothesis," which holds that females have more access to female mates when male sexual rivals are scarce. Of the 11 predictions tested, only one yielded statistically significant results: we found that higher ratios of availability of preferred female partners to preferred male partners were associated with female homosexual consortships rather than female heterosexual consortships. This result supported the "bisexual preference hypothesis," which holds that female homosexual behavior is attributable to female preference for certain female mates relative to certain male mates. We conclude that when a female targets another female as a mate, it is an active choice for a female sexual partner over available male alternatives, rather than a by-default situation that occurs because males are not available as sexual partners, or because females are better able to access female sexual partners due to a scarcity of male sexual competitors.

Automatic affective-motivational regulation processes underlying supportive dyadic coping: the role of increased implicit positive attitudes toward communal goals in response to a stressed relationship partner.

PubMed

Koranyi, Nicolas; Hilpert, Peter; Job, Veronika; Bodenmann, Guy

2017-09-01

We examined the implicit affective mechanisms underlying provision of support in intimate dyads. Specifically, we hypothesized that in individuals with high relationship satisfaction, the perception that one's partner is stressed leads to increased implicit positive attitudes toward communal goals. In turn, this change in implicit attitudes facilitates supportive behavior. In two studies, we induced partner stress by instructing participants to either recall a situation where their partner was highly stressed (Study 1; N = 47 university students) or imagine a specific stressful event (excessive workload; Study 2; N = 85 university students). Subsequently, implicit attitudes toward communal goals were assessed with an Implicit Association Test. In both studies, we found that among participants with high relationship satisfaction partner stress increases preferences for communal goals. In addition, implicit preferences for communal goals predicted stronger inclinations to engage in supportive dyadic coping (Study 2). The current findings provide important insights into the implicit cognitive-affective mechanics of dyadic coping. Moreover, they can explain how people manage to avoid experiencing motivational conflicts between partner-oriented and self-oriented goals in situations characterized by high partner stress.

From Preferred to Actual Mate Characteristics: The Case of Human Body Shape

PubMed Central

Courtiol, Alexandre; Picq, Sandrine; Godelle, Bernard; Raymond, Michel; Ferdy, Jean-Baptiste

2010-01-01

The way individuals pair to produce reproductive units is a major factor determining evolution. This process is complex because it is determined not only by individual mating preferences, but also by numerous other factors such as competition between mates. Consequently, preferred and actual characteristics of mates obtained should differ, but this has rarely been addressed. We simultaneously measured mating preferences for stature, body mass, and body mass index, and recorded corresponding actual partner's characteristics for 116 human couples from France. Results show that preferred and actual partner's characteristics differ for male judges, but not for females. In addition, while the correlation between all preferred and actual partner's characteristics appeared to be weak for female judges, it was strong for males: while men prefer women slimmer than their actual partner, those who prefer the slimmest women also have partners who are slimmer than average. This study therefore suggests that the influences of preferences on pair formation can be sex-specific. It also illustrates that this process can lead to unexpected results on the real influences of mating preferences: traits considered as highly influencing attractiveness do not necessarily have a strong influence on the actual pairing, the reverse being also possible. PMID:20885953

From preferred to actual mate characteristics: the case of human body shape.

PubMed

Courtiol, Alexandre; Picq, Sandrine; Godelle, Bernard; Raymond, Michel; Ferdy, Jean-Baptiste

2010-09-27

The way individuals pair to produce reproductive units is a major factor determining evolution. This process is complex because it is determined not only by individual mating preferences, but also by numerous other factors such as competition between mates. Consequently, preferred and actual characteristics of mates obtained should differ, but this has rarely been addressed. We simultaneously measured mating preferences for stature, body mass, and body mass index, and recorded corresponding actual partner's characteristics for 116 human couples from France. Results show that preferred and actual partner's characteristics differ for male judges, but not for females. In addition, while the correlation between all preferred and actual partner's characteristics appeared to be weak for female judges, it was strong for males: while men prefer women slimmer than their actual partner, those who prefer the slimmest women also have partners who are slimmer than average. This study therefore suggests that the influences of preferences on pair formation can be sex-specific. It also illustrates that this process can lead to unexpected results on the real influences of mating preferences: traits considered as highly influencing attractiveness do not necessarily have a strong influence on the actual pairing, the reverse being also possible.

How Are Mate Preferences Linked with Actual Mate Selection? Tests of Mate Preference Integration Algorithms Using Computer Simulations and Actual Mating Couples

PubMed Central

Conroy-Beam, Daniel; Buss, David M.

2016-01-01

Prior mate preference research has focused on the content of mate preferences. Yet in real life, people must select mates among potentials who vary along myriad dimensions. How do people incorporate information on many different mate preferences in order to choose which partner to pursue? Here, in Study 1, we compare seven candidate algorithms for integrating multiple mate preferences in a competitive agent-based model of human mate choice evolution. This model shows that a Euclidean algorithm is the most evolvable solution to the problem of selecting fitness-beneficial mates. Next, across three studies of actual couples (Study 2: n = 214; Study 3: n = 259; Study 4: n = 294) we apply the Euclidean algorithm toward predicting mate preference fulfillment overall and preference fulfillment as a function of mate value. Consistent with the hypothesis that mate preferences are integrated according to a Euclidean algorithm, we find that actual mates lie close in multidimensional preference space to the preferences of their partners. Moreover, this Euclidean preference fulfillment is greater for people who are higher in mate value, highlighting theoretically-predictable individual differences in who gets what they want. These new Euclidean tools have important implications for understanding real-world dynamics of mate selection. PMID:27276030

How Are Mate Preferences Linked with Actual Mate Selection? Tests of Mate Preference Integration Algorithms Using Computer Simulations and Actual Mating Couples.

PubMed

Conroy-Beam, Daniel; Buss, David M

2016-01-01

Prior mate preference research has focused on the content of mate preferences. Yet in real life, people must select mates among potentials who vary along myriad dimensions. How do people incorporate information on many different mate preferences in order to choose which partner to pursue? Here, in Study 1, we compare seven candidate algorithms for integrating multiple mate preferences in a competitive agent-based model of human mate choice evolution. This model shows that a Euclidean algorithm is the most evolvable solution to the problem of selecting fitness-beneficial mates. Next, across three studies of actual couples (Study 2: n = 214; Study 3: n = 259; Study 4: n = 294) we apply the Euclidean algorithm toward predicting mate preference fulfillment overall and preference fulfillment as a function of mate value. Consistent with the hypothesis that mate preferences are integrated according to a Euclidean algorithm, we find that actual mates lie close in multidimensional preference space to the preferences of their partners. Moreover, this Euclidean preference fulfillment is greater for people who are higher in mate value, highlighting theoretically-predictable individual differences in who gets what they want. These new Euclidean tools have important implications for understanding real-world dynamics of mate selection.

Body height preferences and actual dimorphism in stature between partners in two non-Western societies (Hadza and Tsimane').

PubMed

Sorokowski, Piotr; Sorokowska, Agnieszka; Butovskaya, Marina; Stulp, Gert; Huanca, Tomas; Fink, Bernhard

2015-06-16

Body height influences human mate preferences and choice. A typical finding in Western societies is that women prefer men who are taller than themselves and, equivalently, men prefer women who are shorter than themselves. However, recent reports in non-Western societies (e.g., the Himba in Namibia) challenge the view on the universality of such preferences. Here we report on male and female height preferences in two non-Western populations--the Hadza (Tanzania) and the Tsimane' (Bolivia)--and the relationships between body height preferences and the height of actual partners. In the Hadza, most individuals preferred a sexual dimorphism in stature (SDS) with the man being much taller than the woman. Preferences for SDS and actual partner SDS were positively and significantly correlated in both men and women, suggesting that people who preferred larger height differences also had larger height differences with their partners. In the Tsimane', the majority of men preferred an SDS with the man being taller than the woman, but women did not show such a preference. Unlike in the Hadza, SDS preference was not significantly correlated to actual partner SDS. We conclude that patterns of height preferences and choices in the Hadza and Tsimane' are different than those observed in Western societies, and discuss possible causes for the observed differences between non-Western and Western societies.

Preferences for Friends and Close Relationships Partners: A Cross-Cultural Comparison.

ERIC Educational Resources Information Center

Goodwin, Robin; Tang, Daniel

1991-01-01

Summarizes a study of questionnaire responses by British and Hong Kong Chinese students rating preferred traits in friends and romantic partners. Reports that romantic partners were expected to be more honest and caring than friends. Lists three principal preferences: kindness/consideration, extroversion, and sensitivity. Finds sensitivity…

Cultural and Intellectual Openness Differentially Relate to Social Judgments of Potential Work Partners.

PubMed

Porter, Caitlin M; Parrigon, Scott E; Woo, Sang Eun; Saef, Rachel M; Tay, Louis

2017-10-01

This study investigates the differential functioning of cultural and intellectual openness (the two aspects of Openness to Experience) in relation to social cognitive processes by examining how they influence people's perceptions and interpretations of social information when deciding to initiate working relationships. Using a policy-capturing design, 681 adult participants were asked to rate their similarity to and preference to work with potential work partners characterized by varying nationalities and levels of work-related competence. Multilevel moderated mediation was conducted to simultaneously evaluate whether the indirect effects of potential work partners' characteristics (i.e., nationalities and levels of work-related competence) on work partner preference through perceived similarity were moderated by cultural and intellectual openness. Perceived similarity mediated the relationships between work partner nationality and work-related competence and participants' work partner preferences. Furthermore, the negative indirect effect of work partner nationality on work partner preference via perceived similarity was attenuated by cultural openness, and the positive indirect effect of work partner work-related competence on work partner preference via perceived similarity was strengthened by intellectual openness. Cultural and intellectual openness may have distinct functions that influence how people perceive, evaluate, and appreciate social information when making social judgments. © 2016 Wiley Periodicals, Inc.

Correlated preferences for facial masculinity and ideal or actual partner's masculinity

PubMed Central

DeBruine, Lisa M; Jones, Benedict C; Little, Anthony C; Boothroyd, Lynda G; Perrett, David I; Penton-Voak, Ian S; Cooper, Philip A; Penke, Lars; Feinberg, David R; Tiddeman, Bernard P

2006-01-01

Studies of women's preferences for male faces have variously reported preferences for masculine faces, preferences for feminine faces and no effect of masculinity–femininity on male facial attractiveness. It has been suggested that these apparently inconsistent findings are, at least partly, due to differences in the methods used to manipulate the masculinity of face images or individual differences in attraction to facial cues associated with youth. Here, however, we show that women's preferences for masculinity manipulated in male faces using techniques similar to the three most widely used methods are positively inter-related. We also show that women's preferences for masculine male faces are positively related to ratings of the masculinity of their actual partner and their ideal partner. Correlations with partner masculinity were independent of real and ideal partner age, which were not associated with facial masculinity preference. Collectively, these findings suggest that variability among studies in their findings for women's masculinity preferences reflects individual differences in attraction to masculinity rather than differences in the methods used to manufacture stimuli, and are important for the interpretation of previous and future studies of facial masculinity. PMID:16777723

Correlated Preferences for Male Facial Masculinity and Partner Traits in Gay and Bisexual Men in China.

PubMed

Zheng, Lijun; Zheng, Yong

2015-07-01

Previous studies have documented the correlation between preferences for male facial masculinity and perceived masculinity: women who rate their male partner as more masculine tend to prefer more masculine faces. Men's self-rated masculinity predicts their female partner's preference for masculinity. This study examined the association between other trait preferences and preference for male facial masculinity among 556 gay and bisexual men across multiple cities in China. Participants were asked to choose the three most important traits in a romantic partner from a list of 23 traits. Each participant was then asked to choose a preferred face in each of 10 pairs of male faces presented sequentially, with each pair consisting of a masculinized and feminized version of the same base face. The results indicated that preferences for health and status-related traits were correlated with preferences for male facial masculinity in gay and bisexual men in China; individuals who were more health- or status-oriented in their preferences for a romantic partner preferred more masculine male faces than individuals with lower levels of these orientations. The findings have implications for the correlated preferences for facial masculinity and health- and status-related traits and may be related to perceived health and dominance/aggression of masculine faces based on a sample of non-Western gay and bisexual men.

"Coffee, tea and me": moderate doses of caffeine affect sexual behavior in female rats.

PubMed

Guarraci, Fay A; Benson, Anastasia

2005-11-01

The present study evaluated the effects of acute caffeine administration on paced mating behavior and partner preference in ovariectomized rats primed with estrogen and progesterone. In Experiment 1, female rats were tested for paced mating behavior following acute administration of caffeine (15 mg/kg). Caffeine shortened the latency to return to a male following an ejaculation. Although this dose of caffeine did not alter the likelihood of leaving a male after receiving sexual stimulation, locomotor activity did increase significantly. Experiment 2 evaluated the dose response characteristics of caffeine (7.5, 15, 30 mg/kg) administration on paced mating behavior. Replicating Experiment 1, caffeine at the lower doses shortened the latency to return to a male following an ejaculation. Finally, to determine whether the effects of caffeine (15 mg/kg) on contact-return latency reflect a change in sexual motivation or merely an inability to inhibit locomotion, rats were tested for partner preference (intact male vs. estrous female) following caffeine administration (Experiment 3). Although caffeine did not disrupt preference for a sexual partner, caffeine selectively increased visits to the male when physical contact was possible. Collectively, these results suggest that the effects of caffeine on female mating behavior may reflect an increase in both sexual motivation and locomotor activity.

Who, what, where, when (and maybe even why)? How the experience of sexual reward connects sexual desire, preference, and performance.

PubMed

Pfaus, James G; Kippin, Tod E; Coria-Avila, Genaro A; Gelez, Hélène; Afonso, Veronica M; Ismail, Nafissa; Parada, Mayte

2012-02-01

Although sexual behavior is controlled by hormonal and neurochemical actions in the brain, sexual experience induces a degree of plasticity that allows animals to form instrumental and Pavlovian associations that predict sexual outcomes, thereby directing the strength of sexual responding. This review describes how experience with sexual reward strengthens the development of sexual behavior and induces sexually-conditioned place and partner preferences in rats. In both male and female rats, early sexual experience with partners scented with a neutral or even noxious odor induces a preference for scented partners in subsequent choice tests. Those preferences can also be induced by injections of morphine or oxytocin paired with a male rat's first exposure to scented females, indicating that pharmacological activation of opioid or oxytocin receptors can "stand in" for the sexual reward-related neurochemical processes normally activated by sexual stimulation. Conversely, conditioned place or partner preferences can be blocked by the opioid receptor antagonist naloxone. A somatosensory cue (a rodent jacket) paired with sexual reward comes to elicit sexual arousal in male rats, such that paired rats with the jacket off show dramatic copulatory deficits. We propose that endogenous opioid activation forms the basis of sexual reward, which also sensitizes hypothalamic and mesolimbic dopamine systems in the presence of cues that predict sexual reward. Those systems act to focus attention on, and activate goal-directed behavior toward, reward-related stimuli. Thus, a critical period exists during an individual's early sexual experience that creates a "love map" or Gestalt of features, movements, feelings, and interpersonal interactions associated with sexual reward.

Women have a preference for their male partner to be HPV vaccinated.

PubMed

Harper, Diane Medved; Alexander, Natalie Marya; Ahern, Debra Ann; Comes, Johanna Claire; Smith, Melissa Smith; Heutinck, Melinda Ann; Handley, Sandra Martin

2014-01-01

Peer influence and social networking can change female adolescent and young adult behavior. Peer influence on preferences for male human papillomavirus (HPV) vaccination has not been documented. The primary aim of this study was to determine if women had preferences about male sexual partner HPV vaccination receipt. A prospective survey of women 18-26 years of age was conducted at an urban university student health clinic. Education about the two HPV vaccines, cervical cancer and genital warts was provided. Women self-reported their demographic and medical history data, as well as their own preferences for HPV vaccine and their preferences for their male partner HPV vaccine using a 5 point Likert scale. 601 women, mean age of 21.5 years (SD 2.4), participated between 2011 and 2012. Nearly 95% of respondents were heterosexual; condoms and contraceptives were used in over half of the population. Regardless of the woman's vaccination status, women had significantly higher (strongly agree/agree) preferences for the male partner being vaccinated with HPV4 than not caring if he was vaccinated (63.6% vs. 13.1%, p<0.001). This preference was repeated for sexual risk factors and past reproductive medical history. Women who received HPV4 compared to those choosing HPV2 had a significantly lower proportion of preferences for not caring if the male partner was vaccinated (13% vs. 22%, p = 0.015). Women preferred a HPV vaccinated male partner. Peer messaging might change the male HPV vaccination uptake.

What can be measured in dating data: comment on Vaillant (2006).

PubMed

Cameron, Samuel

2006-12-01

Vaillant's 2006 paper presents data from a marriage bureau to give evidence on partner-seeking behavior. Three questions may be asked about the nature and usefulness of such work, whether it can (i) measure the efficiency of such bureaux, (ii) indicate the volume of resources devoted to partner search from commercially sourced dating data, and (iii) be used to test hypotheses about preference formation.

Preferences for partner notification method: variation in responses between respondents as index patients and contacts.

PubMed

Apoola, A; Radcliffe, K W; Das, S; Robshaw, V; Gilleran, G; Kumari, B S; Boothby, M; Rajakumar, R

2007-07-01

There have been very few studies focusing on what form of communication patients would find acceptable from a clinic. This study looks at the differences in preferences for various partner notification methods when the respondents were index patients compared with when they had to be contacted because a partner had a sexually transmitted infection (STI). There were 2544 respondents. When the clinic had to notify partners, respondents were more likely to report the method as good when a partner had an STI and they were being contacted compared with when the respondents had an infection and the partner was being contacted. The opposite was true for patient referral partner notification. Therefore, there are variations in the preferences of respondents for partner notification method, which depend on whether they see themselves as index patients or contacts.

Patient preferences for partner notification.

PubMed

Apoola, A; Radcliffe, K W; Das, S; Robshaw, V; Gilleran, G; Kumari, B S; Boothby, M; Rajakumar, R

2006-08-01

To identify patient preferences for notification of sexual contacts when a sexually transmitted infection (STI) is diagnosed. A questionnaire survey of 2544 patients attending three large genitourinary clinics at Derby, Birmingham, and Coventry in the United Kingdom. The median age of the respondents was 24 with 1474 (57.9%) women, 1835 (72.1%) white, 1826 (71.8%) single. The most favoured method of partner notification was patient referral, which was rated a "good" method by 65.8% when they had to be contacted because a sexual partner has an STI. Notifying contacts by letter as a method of provider partner notification is more acceptable than phoning, text messaging, or email. Respondents with access to mobile telephones, private emails, and private letters were more likely to rate a method of partner notification using that mode of communication as "good" compared to those without. With provider referral methods of partner notification respondents preferred to receive a letter, email, or text message asking them to contact the clinic rather than a letter, email or text message informing them that they may have an STI. Most respondents think that being informed directly by a partner is the best method of being notified of the risk of an STI. Some of the newer methods may not be acceptable to all but a significant minority of respondents prefer these methods of partner notification. The wording of letters, emails, or text messages when used for partner notification has an influence on the acceptability of the method and may influence success of the partner notification method. Services should be flexible enough to utilise the patients' preferred method of partner notification.

Facial first impressions and partner preference models: Comparable or distinct underlying structures?

PubMed

South Palomares, Jennifer K; Sutherland, Clare A M; Young, Andrew W

2017-12-17

Given the frequency of relationships nowadays initiated online, where impressions from face photographs may influence relationship initiation, it is important to understand how facial first impressions might be used in such contexts. We therefore examined the applicability of a leading model of verbally expressed partner preferences to impressions derived from real face images and investigated how the factor structure of first impressions based on potential partner preference-related traits might relate to a more general model of facial first impressions. Participants rated 1,000 everyday face photographs on 12 traits selected to represent (Fletcher, et al. 1999, Journal of Personality and Social Psychology, 76, 72) verbal model of partner preferences. Facial trait judgements showed an underlying structure that largely paralleled the tripartite structure of Fletcher et al.'s verbal preference model, regardless of either face gender or participant gender. Furthermore, there was close correspondence between the verbal partner preference model and a more general tripartite model of facial first impressions derived from a different literature (Sutherland et al., 2013, Cognition, 127, 105), suggesting an underlying correspondence between verbal conceptual models of romantic preferences and more general models of facial first impressions. © 2017 The British Psychological Society.

Self-Rated Attractiveness Moderates the Relationship Between Dark Personality Traits and Romantic Ideals in Women.

PubMed

Birkás, Béla; Láng, András; Meskó, Norbert

2018-02-01

Our study investigated the different mate preferences of the Dark Triad in women. In addition to former studies, we also examined the effect of self-evaluated attractiveness on these preferences. Attractiveness is a high-valued partner attribute, especially in short-term relationships. Accordingly, we predicted that women high in Dark Triad traits prefer characteristics related to short-term mating, because they possess traits favored in short-term relationships. Associations between ideal partner standards and Dark Triad traits were investigated with self-reports: 529 female undergraduate students filled out the Short Dark Triad and the Ideal Standards Scale. Results showed that all three Dark Triad traits were related to unique preferences of mate qualities corresponding to their self-rated partner qualities. Furthermore, despite the differences between the three Dark Triad traits, women's partner preferences were associated with their self-evaluated attractiveness (an indicator of mate value). In summary, according to our findings, qualities advertised by Dark Triad women as potential partner influence their expectation or preferences regarding mates, suggesting homogamous mate choice on the levels of these qualities.

The Relationship between Partners’ Family-Size Preferences in Southern Malawi

PubMed Central

Yeatman, Sara; Sennott, Christie

2015-01-01

Studies of the relative influence of partners’ fertility preferences on behaviors tend to treat preferences as fixed, largely independent traits despite existing theoretical arguments and empirical evidence suggesting that they are moving targets that may be jointly developed within relationships. In this study, we use couple-level panel data from married and unmarried young adults in southern Malawi to examine the relationship between partners’ family-size preferences. We find evidence of assortative mating: young Malawians are more likely to partner with individuals who have similar family-size goals. Additionally, although partners’ family-size preferences do not perfectly converge, changes among men’s and women’s preferences are significantly more likely to be “toward” than “away from” those of their partner. Our findings point to a need for studies regarding the relative influence of partners on reproductive outcomes to consider the interdependence of partners’ preferences and the varied ways in which partners can influence shared reproductive behaviors. PMID:25207497

Women Have a Preference for Their Male Partner to Be HPV Vaccinated

PubMed Central

Harper, Diane Medved; Alexander, Natalie Marya; Ahern, Debra Ann; Comes, Johanna Claire; Smith, Melissa Smith; Heutinck, Melinda Ann; Handley, Sandra Martin

2014-01-01

Background Peer influence and social networking can change female adolescent and young adult behavior. Peer influence on preferences for male human papillomavirus (HPV) vaccination has not been documented. The primary aim of this study was to determine if women had preferences about male sexual partner HPV vaccination receipt. Methods and Findings A prospective survey of women 18–26 years of age was conducted at an urban university student health clinic. Education about the two HPV vaccines, cervical cancer and genital warts was provided. Women self-reported their demographic and medical history data, as well as their own preferences for HPV vaccine and their preferences for their male partner HPV vaccine using a 5 point Likert scale. 601 women, mean age of 21.5 years (SD 2.4), participated between 2011 and 2012. Nearly 95% of respondents were heterosexual; condoms and contraceptives were used in over half of the population. Regardless of the woman's vaccination status, women had significantly higher (strongly agree/agree) preferences for the male partner being vaccinated with HPV4 than not caring if he was vaccinated (63.6% vs. 13.1%, p<0.001). This preference was repeated for sexual risk factors and past reproductive medical history. Women who received HPV4 compared to those choosing HPV2 had a significantly lower proportion of preferences for not caring if the male partner was vaccinated (13% vs. 22%, p = 0.015). Conclusions Women preferred a HPV vaccinated male partner. Peer messaging might change the male HPV vaccination uptake. PMID:24828237

Sociosexual attitudes and dyadic sexual desire independently predict women's preferences for male vocal masculinity.

PubMed

O'Connor, Jillian J M; Jones, Benedict C; Fraccaro, Paul J; Tigue, Cara C; Pisanski, Katarzyna; Feinberg, David R

2014-10-01

Research suggests that the desire to behave sexually with a partner (dyadic sexual desire) may reflect desire for intimacy whereas solitary sexual desire may reflect pleasure seeking motivations more generally. Because direct reproductive success can only be increased with a sexual partner, we tested whether dyadic sexual desire was a better predictor of women's preferences for lower pitched men's voices (a marker of relatively high reproductive success) than was solitary sexual desire. In Study 1, women (N = 95) with higher dyadic sexual desire scores on the Sexual Desire Inventory-2 preferred masculinized male voices more than did women with lower dyadic sexual desire scores. We did not find a significant relationship between women's vocal masculinity preferences and their solitary sexual desire scores. In Study 2, we tested whether the relationship between voice preferences and dyadic sexual desire scores was related to differences in sociosexual orientation. Women (N = 80) with more positive attitudes towards uncommitted sex had stronger vocal masculinity preferences regardless of whether men's attractiveness was judged for short-term or long-term relationships. Independent of the effect of sociosexual attitudes, dyadic sexual desire positively predicted women's masculinity preferences when assessing men's attractiveness for short-term but not long-term relationships. These effects were independent of women's own relationship status and hormonal contraceptive use. Our results provide further evidence that women's mate preferences may independently reflect individual differences in both sexual desire and openness to short-term relationships, potentially with the ultimate function of maximizing the fitness benefits of women's mate choices.

“Where Have All the Good Men Gone?” Gendered Interactions in Online Dating

PubMed Central

Kreager, Derek A.; Cavanagh, Shannon E.; Yen, John; Yu, Mo

2013-01-01

This article explores gendered patterns of online dating and their implications for heterosexual union formation. The authors hypothesized that traditional gender norms combine with preferences for more socially desirable partners to benefit men and disadvantage women in the earliest stages of dating. They tested this with 6 months of online dating data from a mid-sized southwestern city (N = 8,259 men and 6,274 women). They found that both men and women tend to send messages to the most socially desirable alters in the dating market, regardless of their own social desirability. They also found that women who initiate contacts connect with more desirable partners than those who wait to be contacted, but women are 4 times less likely to send messages than men. They concluded that socioeconomic similarities in longer term unions result, in part, from relationship termination (i.e., nonreciprocity) rather than initial preferences for similar partners. PMID:24910472

Preference for attractiveness and thinness in a partner: influence of internalization of the thin ideal and shape/weight dissatisfaction in heterosexual women, heterosexual men, lesbians, and gay men.

PubMed

Legenbauer, Tanja; Vocks, Silja; Schäfer, Corinna; Schütt-Strömel, Sabine; Hiller, Wolfgang; Wagner, Christof; Vögele, Claus

2009-06-01

This study assesses whether characteristics of one's own body image influences preferences of attractiveness in a partner. The role of gender and sexual orientation is also considered. Heterosexual women (n=67), lesbian women (n=73), heterosexual men (n=61) and gay men (n=82) participated in an internet survey assessing attitudes towards the body and preferences of attractiveness in a partner. Men in particular were found to prefer attractive partners, regardless of sexual orientation. Weight/shape dissatisfaction was found to be a negative predictor for heterosexual men and women. For gay men, preferences were better explained by internalization and weight/shape dissatisfaction. No such associations were found in the lesbian group. Levels of weight/shape dissatisfaction and internalization of socio-cultural slenderness ideals influence expectations of thinness and attractiveness in a partner with this effect being modified by gender and sexual orientation.

Sexual behaviour of rams: male orientation and its endocrine correlates.

PubMed

Resko, J A; Perkins, A; Roselli, C E; Stellflug, J N; Stormshak, F K

1999-01-01

The components of heterosexual behaviour in rams are reviewed as a basis for understanding partner preference behaviour. A small percentage of rams will not mate with oestrous females and if given a choice will display courtship behaviour towards another ram in preference to a female. Some of the endocrine profiles of these male-oriented rams differ from those of heterosexual controls. These differences include reduced serum concentrations of testosterone, oestradiol and oestrone, reduced capacity to produce testosterone in vitro, and reduced capacity to aromatize androgens in the preoptic-anterior hypothalamus of the brain. Our observation that aromatase activity is significantly lower in the preoptic-anterior hypothalamic area of male-oriented rams than in female-oriented rams may indicate an important neurochemical link to sexual behaviour that should be investigated. The defect in steroid hormone production by the adult testes of the male-oriented ram may represent a defect that can be traced to the fetal testes. If this contention is correct, partner preference behaviour of rams may also be traceable to fetal development and represent a phenomenon of sexual differentiation.

Sex differences in mate preferences revisited: do people know what they initially desire in a romantic partner?

PubMed

Eastwick, Paul W; Finkel, Eli J

2008-02-01

In paradigms in which participants state their ideal romantic-partner preferences or examine vignettes and photographs, men value physical attractiveness more than women do, and women value earning prospects more than men do. Yet it remains unclear if these preferences remain sex differentiated in predicting desire for real-life potential partners (i.e., individuals whom one has actually met). In the present study, the authors explored this possibility using speed dating and longitudinal follow-up procedures. Replicating previous research, participants exhibited traditional sex differences when stating the importance of physical attractiveness and earning prospects in an ideal partner and ideal speed date. However, data revealed no sex differences in the associations between participants' romantic interest in real-life potential partners (met during and outside of speed dating) and the attractiveness and earning prospects of those partners. Furthermore, participants' ideal preferences, assessed before the speed-dating event, failed to predict what inspired their actual desire at the event. Results are discussed within the context of R. E. Nisbett and T. D. Wilson's (1977) seminal article: Even regarding such a consequential aspect of mental life as romantic-partner preferences, people may lack introspective awareness of what influences their judgments and behavior. (c) 2008 APA, all rights reserved

Rats prefer mutual rewards in a prosocial choice task.

PubMed

Hernandez-Lallement, Julen; van Wingerden, Marijn; Marx, Christine; Srejic, Milan; Kalenscher, Tobias

2014-01-01

Pro-sociality, i.e., the preference for outcomes that produce benefits for other individuals, is ubiquitous in humans. Recently, cross-species comparisons of social behavior have offered important new insights into the evolution of pro-sociality. Here, we present a rodent analog of the Pro-social Choice Task that controls strategic components, de-confounds other-regarding choice motives from the animals' natural tendencies to maximize own food access and directly tests the effect of social context on choice allocation. We trained pairs of rats-an actor and a partner rat-in a double T-maze task where actors decided between two alternatives only differing in the reward delivered to the partner. The "own reward" choice yielded a reward only accessible to the actor whereas the "both reward" choice produced an additional reward for a partner (partner condition) or an inanimate toy (toy Condition), located in an adjacent compartment. We found that actors chose "both reward" at levels above chance and more often in the partner than in the toy condition. Moreover, we show that this choice pattern adapts to the current social context and that the observed behavior is stable over time.

Rats prefer mutual rewards in a prosocial choice task

PubMed Central

Hernandez-Lallement, Julen; van Wingerden, Marijn; Marx, Christine; Srejic, Milan; Kalenscher, Tobias

2015-01-01

Pro-sociality, i.e., the preference for outcomes that produce benefits for other individuals, is ubiquitous in humans. Recently, cross-species comparisons of social behavior have offered important new insights into the evolution of pro-sociality. Here, we present a rodent analog of the Pro-social Choice Task that controls strategic components, de-confounds other-regarding choice motives from the animals' natural tendencies to maximize own food access and directly tests the effect of social context on choice allocation. We trained pairs of rats—an actor and a partner rat—in a double T-maze task where actors decided between two alternatives only differing in the reward delivered to the partner. The “own reward” choice yielded a reward only accessible to the actor whereas the “both reward” choice produced an additional reward for a partner (partner condition) or an inanimate toy (toy Condition), located in an adjacent compartment. We found that actors chose “both reward” at levels above chance and more often in the partner than in the toy condition. Moreover, we show that this choice pattern adapts to the current social context and that the observed behavior is stable over time. PMID:25642162

Social disappointment explains chimpanzees' behaviour in the inequity aversion task.

PubMed

Engelmann, Jan M; Clift, Jeremy B; Herrmann, Esther; Tomasello, Michael

2017-08-30

Chimpanzees' refusal of less-preferred food when an experimenter has previously provided preferred food to a conspecific has been taken as evidence for a sense of fairness. Here, we present a novel hypothesis-the social disappointment hypothesis-according to which food refusals express chimpanzees' disappointment in the human experimenter for not rewarding them as well as they could have. We tested this hypothesis using a two-by-two design in which food was either distributed by an experimenter or a machine and with a partner present or absent. We found that chimpanzees were more likely to reject food when it was distributed by an experimenter rather than by a machine and that they were not more likely to do so when a partner was present. These results suggest that chimpanzees' refusal of less-preferred food stems from social disappointment in the experimenter and not from a sense of fairness. © 2017 The Author(s).

The predictive validity of ideal partner preferences: a review and meta-analysis.

PubMed

Eastwick, Paul W; Luchies, Laura B; Finkel, Eli J; Hunt, Lucy L

2014-05-01

A central element of interdependence theory is that people have standards against which they compare their current outcomes, and one ubiquitous standard in the mating domain is the preference for particular attributes in a partner (ideal partner preferences). This article reviews research on the predictive validity of ideal partner preferences and presents a new integrative model that highlights when and why ideals succeed or fail to predict relational outcomes. Section 1 examines predictive validity by reviewing research on sex differences in the preference for physical attractiveness and earning prospects. Men and women reliably differ in the extent to which these qualities affect their romantic evaluations of hypothetical targets. Yet a new meta-analysis spanning the attraction and relationships literatures (k = 97) revealed that physical attractiveness predicted romantic evaluations with a moderate-to-strong effect size (r = ∼.40) for both sexes, and earning prospects predicted romantic evaluations with a small effect size (r = ∼.10) for both sexes. Sex differences in the correlations were small (r difference = .03) and uniformly nonsignificant. Section 2 reviews research on individual differences in ideal partner preferences, drawing from several theoretical traditions to explain why ideals predict relational evaluations at different relationship stages. Furthermore, this literature also identifies alternative measures of ideal partner preferences that have stronger predictive validity in certain theoretically sensible contexts. Finally, a discussion highlights a new framework for conceptualizing the appeal of traits, the difference between live and hypothetical interactions, and the productive interplay between mating research and broader psychological theories.

Sexual orientation and shifts in preferences for a partner's body attributes in short-term versus long-term mating contexts.

PubMed

Lucas, Margery; Koff, Elissa; Grossmith, Samantha; Migliorini, Robyn

2011-06-01

This study assessed the effects of short- and long-term mating contexts on preferences for body characteristics of potential relationship partners in lesbians and heterosexual women. Lesbians (n = 41) rated figure drawings and computer-generated images of women that varied in body fat, waist-to-hip ratio, and breast size; heterosexual women (n = 95) rated computer-generated images of men that varied in muscularity and body fat. Both lesbians and heterosexual women showed a shift in preferences toward more physically attractive partners for shortterm relationships. All body aspects were affected, except that heterosexual women did not show a preference shift for male body fat. The results were interpreted in terms of a mating trade-off strategy in which mate preferences are the consequence of cost/benefit analyses and suggest that preferences for physical attributes of sexual partners may be shared by members of the same sex regardless of sexual orientation.

Implicit and explicit preferences for physical attractiveness in a romantic partner: a double dissociation in predictive validity.

PubMed

Eastwick, Paul W; Eagly, Alice H; Finkel, Eli J; Johnson, Sarah E

2011-11-01

Five studies develop and examine the predictive validity of an implicit measure of the preference for physical attractiveness in a romantic partner. Three hypotheses were generally supported. First, 2 variants of the go/no-go association task revealed that participants, on average, demonstrate an implicit preference (i.e., a positive spontaneous affective reaction) for physical attractiveness in a romantic partner. Second, these implicit measures were not redundant with a traditional explicit measure: The correlation between these constructs was .00 on average, and the implicit measures revealed no reliable sex differences, unlike the explicit measure. Third, explicit and implicit measures exhibited a double dissociation in predictive validity. Specifically, explicit preferences predicted the extent to which attractiveness was associated with participants' romantic interest in opposite-sex photographs but not their romantic interest in real-life opposite-sex speed-daters or confederates. Implicit preferences showed the opposite pattern. This research extends prior work on implicit processes in romantic relationships and offers the first demonstration that any measure of a preference for a particular characteristic in a romantic partner (an implicit measure of physical attractiveness, in this case) predicts individuals' evaluation of live potential romantic partners.

Acceptability of self-conducted home-based HIV testing among men who have sex with men in Brazil: data from an on-line survey

PubMed Central

Lippman, Sheri A.; Périssé, André R. S.; Veloso, Valdiléa G.; Sullivan, Patrick S.; Buchbinder, Susan; Sineath, R. Craig; Grinsztejn, Beatriz

2014-01-01

The Brazilian HIV/AIDS epidemic is concentrated among men who have sex with men (MSM), however HIV testing rates among MSM are not commensurate with their risk. Strategies to expand early diagnosis may include use of self-conducted home-based testing kits, which are now available for purchase in the US. In April 2011 we conducted a survey with Brazilian MSM using Facebook to assess HIV testing preferences and acceptability of home-based testing. Among 356 previously tested, HIV-negative MSM, 47% reported a preference for home-based testing, 27% preferred clinic-based testing, and 26% had no preference. Less frequent testers and those who had considered testing but failed to test were more likely to prefer home-based testing. Close to 90% reported that they would use self-test kits; 62% and 54% said they would use home-based testing to make choices about unprotected sex with regular and new partners, respectively. Concerns included difficulty to understand the tests (32%) and receiving results alone (23%). Overall, home-based testing may appeal to MSM and result in increased testing frequency. Research on feasibility and utilization of self-tests in practice is needed. PMID:24896048

Reproductive ambition predicts partnered, but not unpartnered, women's preferences for masculine men.

PubMed

Watkins, Christopher D

2012-08-01

Changing circumstances alter the costs and benefits of choosing different mates and are thought to be reflected in women's mate preferences. Indeed, several lines of reasoning, and some prior studies, suggest that individual differences in women's preferences for cues of men's underlying health will be more apparent among partnered women than among unpartnered women. The current study shows that preferences for male faces with masculine shape cues, characteristics that are thought to signal men's underlying health, are positively correlated with partnered, but not unpartnered, women's reported reproductive ambition (i.e., their desire to become pregnant). These findings (1) present new evidence for systematic variation in women's mating strategies, (2) suggest that partnership status may be important for potentially adaptive variation in women's mate preferences, and (3) suggest that reproductive ambition may influence women's mate preferences. Alternative explanations for these findings, focusing on the possible effects of a range of variables that may be correlated with reproductive ambition in partnered women and influence their masculinity preferences, are also discussed. ©2011 The British Psychological Society.

The "Skinny" on Body Size Requests in Personal Ads.

ERIC Educational Resources Information Center

Miller, Erica J.; Smith, Jane Ellen; Trembath, David T.

2000-01-01

Surveyed personal ad writers to examine the actual preferences of those seeking thin partners, those seeking physically fit partners, or those with no preference. Respondents indicated ideal and acceptable partner body sizes. Males in the three categories differed significantly in choice of an ideal figure, though actual figure size differences…

What Leads to Sex? Adolescent Preferred Partners and Reasons for Sex.

ERIC Educational Resources Information Center

Eyre, Stephen L.; Millstein, Susan G.

1999-01-01

Examined perceived antecedents of sex and preferred partner qualities in African-American and White late adolescents. Found that African Americans mentioned "nice body" as criterion for partner attractiveness; Whites did not. Males identified sexual arousal as a reason for sex; females did not. African-American males associated sexual…

Adolescents' Age Preferences for Dating Partners: Support for an Evolutionary Model of Life-History Strategies.

ERIC Educational Resources Information Center

Kenrick, Douglas T.; And Others

1996-01-01

Explored sex differences in adolescent preference for older versus younger mates. Found that teenage males were willing to date females of a wide age range, whereas teenage females prefer dating males from their own age to several years older. Data suggested viewing development of sex differences in dating partner preference from the perspective…

Odour-based discrimination of similarity at the major histocompatibility complex in birds

PubMed Central

Strandh, Maria; Mardon, Jérôme; Westerdahl, Helena; Bonadonna, Francesco

2017-01-01

Many animals are known to preferentially mate with partners that are dissimilar at the major histocompatibility complex (MHC) in order to maximize the antigen binding repertoire (or disease resistance) in their offspring. Although several mammals, fish or lizards use odour cues to assess MHC similarity with potential partners, the ability of birds to assess MHC similarity using olfactory cues has not yet been explored. Here we used a behavioural binary choice test and high-throughput-sequencing of MHC class IIB to determine whether blue petrels can discriminate MHC similarity based on odour cues alone. Blue petrels are seabirds with particularly good sense of smell, they have a reciprocal mate choice and are known to preferentially mate with MHC-dissimilar partners. Incubating males preferentially approached the odour of the more MHC-dissimilar female, whereas incubating females showed opposite preferences. Given their mating pattern, females were, however, expected to show preference for the odour of the more MHC-dissimilar male. Further studies are needed to determine whether, as in women and female mice, the preference varies with the reproductive cycle in blue petrel females. Our results provide the first evidence that birds can use odour cues only to assess MHC dissimilarity. PMID:28077776

Health education needs of intimate partner violence survivors: Perspectives from female survivors and social service providers.

PubMed

Ferranti, Dina; Lorenzo, Dalia; Munoz-Rojas, Derby; Gonzalez-Guarda, Rosa M

2018-03-01

To explore the health education needs and learning preferences of female intimate partner violence (IPV) survivors in a social service agency located in South Florida, United States. An exploratory two-phase sequential mixed-methods study was completed through semistructured interviews with social service providers (n = 10), followed by a survey with predominately female IPV survivors (n = 122, 98.4%). Data obtained from interviews with social service providers were analyzed through conventional thematic content analysis. Data from interviews were used in developing a health survey completed by IPV survivors and analyzed utilizing descriptive statistics, chi-square tests and t tests. Three themes emerged from interviews including multidimensional health needs, navigating barriers to health care, and self-improvement specific to survivors of intimate partner violence. Survey results indicated that depression and self-esteem were the health education needs of highest priority. Demographic characteristics, including age and language use, were significantly associated to preferred methods of learning, p < .05. IPV survivors present with various health education needs. Current study findings can inform public health nurses in developing interventions or health-based programs for female IPV survivors in social service agency settings. © 2017 Wiley Periodicals, Inc.

Prenatal stress and ethanol exposure produces inversion of sexual partner preference in mice.

PubMed

Popova, Nina K; Morozova, Maryana V; Amstislavskaya, Tamara G

2011-02-01

The presence of a sexually receptive female behind perforated transparent partition induced sexual arousal and specific behavior in male mice so they spent more time near partition in an attempt to make their way to the female. Three-chambered free-choice model was used to evaluate sexual partner preference. The main pattern of sexual preference was the time spent by a male mouse at the partition dividing female (F-partition time) versus a partition dividing male (M-partition time). Pregnant mice were given ethanol (11vol.%) for 1-21 gestational days, and were exposed to restraint stress (2h daily for 15-21 day of the gestation). Control pregnant mice had free access to water and food and were not stressed. Adult male offspring of ethanol and stress exposed dams (E+S) showed decreased F-partition time and increased M-partition time. Whereas F-partition time in all control mice prevailed over M-partition time, 78% E+S mice demonstrated prevailed M-partition time. E+S mice were more active in social interaction with juvenile male. No significant differences between E+S and control mice in the open field and novelty tests were revealed. Therefore, E+S exposure during dam gestation inverted sexual partner preference in male offspring, suggesting that stress and alcohol in pregnancy produces predisposition to homosexuality. Copyright © 2010 Elsevier Ireland Ltd. All rights reserved.

Sexual Preferences and Partnerships of Transgender Persons Mid- or Post-Transition.

PubMed

Fein, Lydia A; Salgado, Christopher J; Sputova, Klara; Estes, Christopher M; Medina, Carlos A

2018-01-01

The process of gender transition has varying effects on various aspects of sexuality. The purpose of this study was to investigate the effects of transitioning on transgender persons' sexual preferences and partnerships. Data were collected through an anonymous online survey. Questions focused on timing of gender transition in relation to change in sexual preference. Transgender individuals have a variety of sexual partners, predominantly cisgender, and may change sexual preference when they transition. Transitioning can be associated with having no primary sexual partner, despite past sexual partnerships. Length of time between identifying as transgender and starting the transition might be associated with changing sexual partner preference, particularly in transgender women. The emerging trends of sexual partnerships and changing sexual preferences related to the transition in this study warrant further investigation. These data provide more understanding of the relationship between transitioning and sexual preferences and partnerships.

Sharing mates and nest boxes is associated with female "friendship" in European starlings, Sturnus vulgaris.

PubMed

Henry, Laurence; Bourguet, Cécile; Coulon, Marion; Aubry, Christine; Hausberger, Martine

2013-02-01

Breeding decisions in birds involve both mate and nest choice, and there is increasing evidence that social influences may modulate individual choices. Female preferences may be affected by other females' preferences and mutual choice cannot always be excluded, which makes the whole pattern more complex than assumed by most sexual selection models. Social transmission may be facilitated by particular social bonds, therefore prebreeding social networks may influence later mate choices. The other case where females share mate or resources is polygyny, generally viewed to only benefit males. If mutual benefits may arise then mechanisms should evolve to reduce the reproductive cost for females such as to reduce the cost of aggression by sharing their mate with a preferred same-sex social partner. We tested the hypothesis that females' mating decisions may be influenced by the prebreeding social network and that social partner relations established prior to breeding may share decisions (mate/sites) in a facultatively polygynous species, the European starling. Two experiments were designed to test the relative importance of male or nest by following the whole dynamics of the breeding cycle from the prebreeding period until mate and nest selection. In both cases socially isolated females tended to be excluded from breeding, while prebreeding social partners tended to share mates and to nest in close proximity, mate copying leading in some case to polygyny. The final pattern resulted both from female "likes and dislikes" and male preferences for some females. Aggressive interactions between females were rare. Vocal sharing between females may have been a clue for males as to the degree of social integration of these females. PsycINFO Database Record (c) 2013 APA, all rights reserved

The value of physical attractiveness in romantic partners: modeling biological and social variables.

PubMed

Jonason, Peter K

2009-04-01

According to research on physical attractiveness, personal attributes such as gender, height, and self-perception are important in determining how much individuals value physical attractiveness in their romantic partners. In a survey of 228 college-aged participants, the ratings of the physical attractiveness of potential romantic partners were positively correlated with how much participants valued physical attractiveness in their long-term romantic partners. Individuals' partner preferences may be sensitive to their perceptions of themselves. Perceptions of the attractiveness of those in one's local area may also play a part in the development of such partner preferences through exposure.

Melanocortin Receptor Agonists Facilitate Oxytocin-Dependent Partner Preference Formation in the Prairie Vole.

PubMed

Modi, Meera E; Inoue, Kiyoshi; Barrett, Catherine E; Kittelberger, Kara A; Smith, Daniel G; Landgraf, Rainer; Young, Larry J

2015-07-01

The central melanocortin (MC) system has been widely studied for its effects on food intake and sexual behavior. However, the MC system, and more specifically the MC4 receptor (MC4R), also interacts with neurochemical systems that regulate socioemotional behaviors, including oxytocin (OT) and dopamine. In monogamous prairie voles, OT and dopamine interact to promote partner preference formation, a laboratory measure of an enduring social bond between mates. Here we investigated the effects of MC receptor activation on partner preference formation in prairie voles, as well as the interaction between the MC and OT systems during this process. Peripheral administration of the brain penetrant MC3/4R receptor peptide agonist, Melanotan II (MTII), and the highly selective, small-molecule MC4R agonist, Pf-446687, enhanced partner preference formation in the prairie vole, but not in the non-monogamous meadow vole. MTII-induced partner preferences were enduring, as they were present 1 week after drug manipulation. The prosocial effects of MCR agonists may be mediated, in part, through modulation of OT, as coadministration of an OT receptor antagonist prevented MTII-induced partner preferences. MTII also selectively activated hypothalamic OT neurons and potentiated central OT release. As OT has been shown to enhance some aspects of social cognition in humans, our data suggest that the MC4R may be a viable therapeutic target for enhancing social function in psychiatric disorders, including autism spectrum disorders and schizophrenia, potentially through activation of the OT system.

Melanocortin Receptor Agonists Facilitate Oxytocin-Dependent Partner Preference Formation in the Prairie Vole

PubMed Central

Modi, Meera E; Inoue, Kiyoshi; Barrett, Catherine E; Kittelberger, Kara A; Smith, Daniel G; Landgraf, Rainer; Young, Larry J

2015-01-01

The central melanocortin (MC) system has been widely studied for its effects on food intake and sexual behavior. However, the MC system, and more specifically the MC4 receptor (MC4R), also interacts with neurochemical systems that regulate socioemotional behaviors, including oxytocin (OT) and dopamine. In monogamous prairie voles, OT and dopamine interact to promote partner preference formation, a laboratory measure of an enduring social bond between mates. Here we investigated the effects of MC receptor activation on partner preference formation in prairie voles, as well as the interaction between the MC and OT systems during this process. Peripheral administration of the brain penetrant MC3/4R receptor peptide agonist, Melanotan II (MTII), and the highly selective, small-molecule MC4R agonist, Pf-446687, enhanced partner preference formation in the prairie vole, but not in the non-monogamous meadow vole. MTII-induced partner preferences were enduring, as they were present 1 week after drug manipulation. The prosocial effects of MCR agonists may be mediated, in part, through modulation of OT, as coadministration of an OT receptor antagonist prevented MTII-induced partner preferences. MTII also selectively activated hypothalamic OT neurons and potentiated central OT release. As OT has been shown to enhance some aspects of social cognition in humans, our data suggest that the MC4R may be a viable therapeutic target for enhancing social function in psychiatric disorders, including autism spectrum disorders and schizophrenia, potentially through activation of the OT system. PMID:25652247

Emotional Intelligence and Interpersonal Relations.

ERIC Educational Resources Information Center

Schutte, Nicola S.; Malouff, John M.; Bobik, Chad; Coston, Tracie D.; Greeson, Cyndy; Jedlicka, Christina; Rhodes, Emily; Wendorf, Greta

2001-01-01

Presents the results of seven studies that focused on the link between emotional intelligence and interpersonal relations. Tests emotional intelligence with empathy and self-monitoring, social skills, cooperation, relations with others, and marital satisfaction. Explores preference for emotionally intelligent partners in the final study. Includes…

Face Preferences for Infant- and Adult-Directed Speakers in Infants of Depressed and Nondepressed Mothers: Association with Infant Cognitive Development.

PubMed

Kaplan, Peter S; Asherin, Ryan M; Vogeli, Jo M; Fekri, Shiva M; Scheyer, Kathryn E; Everhart, Kevin D

2018-01-01

Face preferences for speakers of infant-directed and adult-directed speech (IDS and ADS) were investigated in 4- to 13.5-month-old infants of depressed and non-depressed mothers. Following 1-min of exposure to an ID or AD speaker (order counterbalanced), infants had an immediate paired-comparison test with a still, silent image of the familiarized versus a novel face. In the test phase, ID face preference ratios were significantly lower in infants of depressed than non-depressed mothers. Infants' ID face preference ratios, but not AD face preference ratios, correlated with their percentile scores on the cognitive ( Cog ) scale of the Bayley Scales of Infant & Toddler Development (3 rd Edition; BSID III), assessed concurrently. Regression analyses revealed that infant ID face preferences significantly predicted infant Cog percentiles even after demographic risk factors and maternal depression had been controlled. Infants may use IDS to select social partners who are likely to support and facilitate cognitive development.

Partner Preference Among Men Who Have Sex with Men: Potential Contribution to Spread of HIV Within Minority Populations.

PubMed

Phillips, Gregory; Birkett, Michelle; Hammond, Sydney; Mustanski, Brian

2016-06-01

Human immunodeficiency virus (HIV) disproportionately affects men who have sex with men (MSM) in the United States. Most prior research into drivers of HIV transmission has focused on individual characteristics rather than on dyadic-level behaviors such as sex partner selection. This article explores racial/ethnic preferences in sex and relationship partner selection among MSM to further contextualize the spread of HIV within minority groups. Participants were recruited through a mobile application (app) for men to meet other men in 2015 and completed an online survey on behaviors related to HIV risk. All analyses on the sample of 530 MSM were conducted in 2015. There was significant homophily in partner selection within racial/ethnic minorities, but not for white MSM. In general, mobile app-using MSM reported a general preference for white and Hispanic men and a dispreference for black and Asian men, both for sex and relationship partners. Racial/ethnic preferences were found to drive intentions to form partnerships within this sample. Combined with the stigma many of these racial/ethnic minorities may also feel from homophobic attitudes within their own racial/ethnic communities, these MSM may be at particular risk for social isolation. These partner preferences likely affect the structure of the sexual networks of MSM and may contribute to increased clustering within high HIV incident sexual networks.

Partner Preference Among Men Who Have Sex with Men: Potential Contribution to Spread of HIV Within Minority Populations

PubMed Central

Birkett, Michelle; Hammond, Sydney; Mustanski, Brian

2016-01-01

Abstract Purpose: Human immunodeficiency virus (HIV) disproportionately affects men who have sex with men (MSM) in the United States. Most prior research into drivers of HIV transmission has focused on individual characteristics rather than on dyadic-level behaviors such as sex partner selection. This article explores racial/ethnic preferences in sex and relationship partner selection among MSM to further contextualize the spread of HIV within minority groups. Methods: Participants were recruited through a mobile application (app) for men to meet other men in 2015 and completed an online survey on behaviors related to HIV risk. All analyses on the sample of 530 MSM were conducted in 2015. Results: There was significant homophily in partner selection within racial/ethnic minorities, but not for white MSM. In general, mobile app-using MSM reported a general preference for white and Hispanic men and a dispreference for black and Asian men, both for sex and relationship partners. Conclusion: Racial/ethnic preferences were found to drive intentions to form partnerships within this sample. Combined with the stigma many of these racial/ethnic minorities may also feel from homophobic attitudes within their own racial/ethnic communities, these MSM may be at particular risk for social isolation. These partner preferences likely affect the structure of the sexual networks of MSM and may contribute to increased clustering within high HIV incident sexual networks. PMID:26907954

Police attitudes toward policing partner violence against women: do they correspond to different psychosocial profiles?

PubMed

Gracia, Enrique; García, Fernando; Lila, Marisol

2011-01-01

This study analyzed whether police attitudes toward policing partner violence against women corresponded with different psychosocial profiles. Two attitudes toward policing partner violence were considered-one reflecting a general preference for a conditional law enforcement (depending on the willingness of the victim to press charges against the offender) and the other reflecting a general preference for unconditional law enforcement (regardless of the victim's willingness to press charges against the offender). Results from a sample of 378 police officers showed that those police officers who expressed a general preference for unconditional law enforcement scored higher in other-oriented empathy, were less sexist, tended to perceive the same incidents of partner violence as more serious, and felt more personally responsible, as compared to the group of police officers who expressed a preference for a conditional law enforcement approach. Implications for police education are considered.

Hormones of choice: the neuroendocrinology of partner preference in animals.

PubMed

Henley, C L; Nunez, A A; Clemens, L G

2011-04-01

Partner preference behavior can be viewed as the outcome of a set of hierarchical choices made by an individual in anticipation of mating. The first choice involves approaching a conspecific verses an individual of another species. As a rule, a conspecific is picked as a mating partner, but early life experiences can alter that outcome. Within a species, an animal then has the choice between a member of the same sex or the opposite sex. The final choice is for a specific individual. This review will focus on the middle choice, the decision to mate with either a male or a female. Available data from rats, mice, and ferrets point to the importance of perinatal exposure to steroid hormones in the development of partner preferences, as well as the importance of activational effects in adulthood. However, the particular effects of this hormone exposure show species differences in both the specific steroid hormone responsible for the organization of behavior and the developmental period when it has its effect. Where these hormones have an effect in the brain is mostly unknown, but regions involved in olfaction and sexual behavior, as well as sexually dimorphic regions, seem to play a role. One limitation of the literature base is that many mate or 'partner preference studies' rely on preference for a specific stimulus (usually olfaction) but do not include an analysis of the relation, if any, that stimulus has to the choice of a particular sexual partner. A second limitation has been the almost total lack of attention to the type of behavior that is shown by the choosing animal once a 'partner' has been chosen, specifically, if the individual plays a mating role typical of its own sex or the opposite sex. Additional paradigms that address these questions are needed for better understanding of partner preferences in rodents. Copyright © 2011 Elsevier Inc. All rights reserved.

Odour-based discrimination of similarity at the major histocompatibility complex in birds.

PubMed

Leclaire, Sarah; Strandh, Maria; Mardon, Jérôme; Westerdahl, Helena; Bonadonna, Francesco

2017-01-11

Many animals are known to preferentially mate with partners that are dissimilar at the major histocompatibility complex (MHC) in order to maximize the antigen binding repertoire (or disease resistance) in their offspring. Although several mammals, fish or lizards use odour cues to assess MHC similarity with potential partners, the ability of birds to assess MHC similarity using olfactory cues has not yet been explored. Here we used a behavioural binary choice test and high-throughput-sequencing of MHC class IIB to determine whether blue petrels can discriminate MHC similarity based on odour cues alone. Blue petrels are seabirds with particularly good sense of smell, they have a reciprocal mate choice and are known to preferentially mate with MHC-dissimilar partners. Incubating males preferentially approached the odour of the more MHC-dissimilar female, whereas incubating females showed opposite preferences. Given their mating pattern, females were, however, expected to show preference for the odour of the more MHC-dissimilar male. Further studies are needed to determine whether, as in women and female mice, the preference varies with the reproductive cycle in blue petrel females. Our results provide the first evidence that birds can use odour cues only to assess MHC dissimilarity. © 2017 The Author(s).

Gender differences in medical students' motives and career choice.

PubMed

Heiligers, Phil J M

2012-08-23

The main subject is the influence of gender and the stage of life on the choice of specialty in medical education. In particular we looked at the influence of intrinsic and external motives on this relationship. The choice of specialty was divided into two moments: the choice between medical specialties and general practice; and the preference within medical specialties. In earlier studies the topic of motivation was explored, mostly related to gender. In this study stage of life in terms of living with a partner -or not- and stage of education was added. A questionnaire concerning career preferences was used. The online questionnaire was sent to all student members of the KNMG (Royal Dutch Medical Association). 58% of these students responded (N = 2397). Only 1478 responses could be used for analyses (36%). For stipulating the motives that played a role, principal components factor analysis has been carried out. For testing the mediation effect a set of regression analyses was performed: logistic regressions and multiple regressions. Although basic findings about gender differences in motivations for preferred careers are consistent with earlier research, we found that whether or not living with a partner is determinant for differences in profession-related motives and external motives (lifestyle and social situation). Furthermore living with a partner is not a specific female argument anymore, since no interactions are found between gender and living with a partner. Another issue is that motives are mediating the relationship between, living with a partner, and the choice of GP or medical specialty. For more clarity in the mediating effect of motives a longitudinal study is needed to find out about motives and changing circumstances. The present study provides a contribution to the knowledge of career aspirations of medical students, especially the impact of motivation. Gender and living with a partner influence both choices, but they are not interacting, so living with a partner is similarly important for male and female students in choosing their preferences. Moreover, external and intrinsic motives mediate this relationship to a greater of lesser degree. First stage students are influenced by life-style and intrinsic motives in their choice of general practice. For second stage students, the results show influences of life-style motives next to profession-related motives on both moments of choice.

Gender differences in medical students’ motives and career choice

PubMed Central

2012-01-01

Background The main subject is the influence of gender and the stage of life on the choice of specialty in medical education. In particular we looked at the influence of intrinsic and external motives on this relationship. The choice of specialty was divided into two moments: the choice between medical specialties and general practice; and the preference within medical specialties. In earlier studies the topic of motivation was explored, mostly related to gender. In this study stage of life in terms of living with a partner -or not- and stage of education was added. Methods A questionnaire concerning career preferences was used. The online questionnaire was sent to all student members of the KNMG (Royal Dutch Medical Association). 58% of these students responded (N = 2397). Only 1478 responses could be used for analyses (36%). For stipulating the motives that played a role, principal components factor analysis has been carried out. For testing the mediation effect a set of regression analyses was performed: logistic regressions and multiple regressions. Results Although basic findings about gender differences in motivations for preferred careers are consistent with earlier research, we found that whether or not living with a partner is determinant for differences in profession-related motives and external motives (lifestyle and social situation). Furthermore living with a partner is not a specific female argument anymore, since no interactions are found between gender and living with a partner. Another issue is that motives are mediating the relationship between, living with a partner, and the choice of GP or medical specialty. For more clarity in the mediating effect of motives a longitudinal study is needed to find out about motives and changing circumstances. Conclusions The present study provides a contribution to the knowledge of career aspirations of medical students, especially the impact of motivation. Gender and living with a partner influence both choices, but they are not interacting, so living with a partner is similarly important for male and female students in choosing their preferences. Moreover, external and intrinsic motives mediate this relationship to a greater of lesser degree. First stage students are influenced by life-style and intrinsic motives in their choice of general practice. For second stage students, the results show influences of life-style motives next to profession-related motives on both moments of choice. PMID:22913471

Sexual partner preference in female Japanese macaques.

PubMed

Vasey, Paul L

2002-02-01

Whether animals ever exhibit a preference for same-sex sexual partners is a subject of debate. Japanese macaques represent excellent models for examining issues related to sexual preference in animals because females, in certain populations, routinely engage in both heterosexual and homosexual behavior over the course of their life spans. Multiple lines of evidence indicate that female homosexual behavior in Japanese macaques is a sexual behavior, not a sociosexual one. Additional evidence indicates that female Japanese macaques do not engage in homosexual behavior simply because acceptable male mates are unavailable or unmotivated to copulate. Patterns of sexual partner choice by female Japanese macaques that are the focus of intersexual competition indicate that females of this species choose same-sex sexual partners even when they are simultaneously presented with a motivated, opposite-sex alternative. Thus, in some populations of Japanese macaques, females prefer certain same-sex sexual partners relative to certain male mates, and vice versa. Taken together, this evidence suggests that female Japanese macaques are best characterized as bisexual in orientation, not preferentially homosexual or preferentially heterosexual.

If you've got it, flaunt it: humans flaunt attractive partners to enhance their status and desirability.

PubMed

Winegard, Benjamin M; Winegard, Bo; Geary, David C

2013-01-01

Mating decisions are influenced by conspecifics' mate choices in many species including humans. Recent research has shown that women are more attracted to men with attractive putative partners than those with less attractive partners. We integrate these findings with traditional accounts of social signaling and test five hypotheses derived from it. In our study, 64 men and 75 women were paired with attractive and unattractive opposite-sex putative partners and asked whether they would prefer to give surveys to peers or to older adults. Consistent with predictions, both men and women wanted to show off (flaunt) attractive partners by administering surveys to peers and both men and women wanted to hide (conceal) unattractive partners from peers by administering surveys to older adults. These decisions were mediated by how participants expected others to evaluate their status and desirability when they administered the surveys, consistent with partners serving a social signaling function in humans.

It's Not Me, It's You: Perceptions of Partner Body Image Preferences Associated With Eating Disorder Symptoms in Gay and Heterosexual Men.

PubMed

Fussner, Lauren M; Smith, April R

2015-01-01

This study explored perceptions of partner body image preferences and symptoms of disordered eating in gay and heterosexual men. Participants were male college students (n = 201; M age = 20.46), and over one third identified as gay. We compared discrepancies between participants' current and ideal body type and participants' current body type and the body type they believed they should have to attract a dating partner. For gay men, the discrepancy between their current body and the body they believed they should have to attract a dating partner was significantly greater than the discrepancy between their current and ideal body types. In gay and heterosexual men, the discrepancy between current body and the body they believed they should have to attract a dating partner predicted eating, shape, and weight concern. Results suggest that perceptions of partner body image preferences may contribute to eating disorder pathology in men.

Mate attraction, retention and expulsion.

PubMed

Miner, Emily J; Shackelford, Todd K

2010-02-01

Sexual selection theory and parental investment theory have guided much of the evolutionary psychological research on human mating. Based on these theories, researchers have predicted and found sex differences in mating preferences and behaviors. Men generally prefer that their long-term partners are youthful and physically attractive. Women generally prefer that their long-term partners have existing resources or clear potential for securing resources and display a willingness to invest those resources in children the relationship might produce. Both men and women, however, desire long-term partners who are kind and intelligent. Once a partner is obtained, men and women act in sex-specific ways to ensure the continuation and exclusivity of the relationship. Men, in particular, engage in behaviors designed to prevent, correct, and anticipate their partner's sexual infidelity. Relationships dissolve for evolutionarily-relevant reasons: infidelity, childlessness, and infertility. The discussion addresses directions for future research.

[Biological and neural bases of partner preferences in rodents: models to understand human pair bonds].

PubMed

Coria-Avila, G A; Hernández-Aguilar, M E; Toledo-Cárdenas, R; García-Hernández, L I; Manzo, J; Pacheco, P; Miquel, M; Pfaus, J G

To analyse the biological and neural bases of partner preference formation in rodents as models to understand human pair bonding. Rodents are social individuals, capable of forming short- or long-lasting partner preferences that develop slowly by stimuli like cohabitation, or rapidly by stimuli like sex and stress. Dopamine, corticosteroids, oxytocin, vasopressin, and opioids form the neurochemical substrate for pair bonding in areas like the nucleus accumbens, the prefrontal cortex, the piriform cortex, the medial preoptic area, the ventral tegmental area and the medial amygdala, among others. Additional areas may participate depending on the nature of the conditioned stimuli by which and individual recognizes a preferred partner. Animal models help us understand that the capacity of an individual to display long-lasting and selective preferences depends on neural bases, selected throughout evolution. The challenge in neuroscience is to use this knowledge to create new solutions for mental problems associated with the incapacity of an individual to display a social bond, keep one, or cope with the disruption of a consolidated one.

Can money heal all wounds? Social exchange norm modulates the preference for monetary versus social compensation.

PubMed

Cao, Yulong; Yu, Hongbo; Wu, Yanhong; Zhou, Xiaolin

2015-01-01

Compensation is a kind of pro-social behavior that can restore a social relationship jeopardized by interpersonal transgression. The effectiveness of a certain compensation strategy (e.g., repaying money, sharing loss, etc.) may vary as a function of the social norm/relationship. Previous studies have shown that two types of norms (or relationships), monetary/exchange and social/communal, differentially characterize people's appraisal of and response to social exchanges. In this study, we investigated how individual differences in preference for these norms affect individuals' perception of others' as well as the selection of their own reciprocal behaviors. In a two-phase experiment with interpersonal transgression, we asked the participant to perform a dot-estimation task with two partners who occasionally and unintentionally inflicted noise stimulation upon the participant (first phase). As compensation one partner gave money to the participant 80% of the time (the monetary partner) and the other bore the noise for the participant 80% of the time (the social partner). Results showed that the individuals' preference for compensation (repaying money versus bearing noise) affected their relationship (exchange versus communal) with the partners adopting different compensation strategies: participants tended to form communal relationships and felt closer to the partner whose compensation strategy matched their own preference. The participants could be differentiated into a social group, who tended to form communal relationship with the social partner, and a monetary group, who tended to form communal relationship with the monetary partner. In the second phase of the experiment, when the participants became transgressors and were asked to compensate for their transgression with money, the social group offered more compensation to the social partners than to the monetary partners, while the monetary group compensated less than the social group in general and showed no difference in their offers to the monetary and social partners. These findings demonstrate that the effectiveness of compensation varies as a function of individuals' preference for communal versus monetary norm and that monetary compensation alone does not heal all wounds.

Can money heal all wounds? Social exchange norm modulates the preference for monetary versus social compensation

PubMed Central

Cao, Yulong; Yu, Hongbo; Wu, Yanhong; Zhou, Xiaolin

2015-01-01

Compensation is a kind of pro-social behavior that can restore a social relationship jeopardized by interpersonal transgression. The effectiveness of a certain compensation strategy (e.g., repaying money, sharing loss, etc.) may vary as a function of the social norm/relationship. Previous studies have shown that two types of norms (or relationships), monetary/exchange and social/communal, differentially characterize people’s appraisal of and response to social exchanges. In this study, we investigated how individual differences in preference for these norms affect individuals’ perception of others’ as well as the selection of their own reciprocal behaviors. In a two-phase experiment with interpersonal transgression, we asked the participant to perform a dot-estimation task with two partners who occasionally and unintentionally inflicted noise stimulation upon the participant (first phase). As compensation one partner gave money to the participant 80% of the time (the monetary partner) and the other bore the noise for the participant 80% of the time (the social partner). Results showed that the individuals’ preference for compensation (repaying money versus bearing noise) affected their relationship (exchange versus communal) with the partners adopting different compensation strategies: participants tended to form communal relationships and felt closer to the partner whose compensation strategy matched their own preference. The participants could be differentiated into a social group, who tended to form communal relationship with the social partner, and a monetary group, who tended to form communal relationship with the monetary partner. In the second phase of the experiment, when the participants became transgressors and were asked to compensate for their transgression with money, the social group offered more compensation to the social partners than to the monetary partners, while the monetary group compensated less than the social group in general and showed no difference in their offers to the monetary and social partners. These findings demonstrate that the effectiveness of compensation varies as a function of individuals’ preference for communal versus monetary norm and that monetary compensation alone does not heal all wounds. PMID:26441783

Men's strategic preferences for femininity in female faces.

PubMed

Little, Anthony C; Jones, Benedict C; Feinberg, David R; Perrett, David I

2014-08-01

Several evolutionarily relevant sources of individual differences in face preference have been documented for women. Here, we examine three such sources of individual variation in men's preference for female facial femininity: term of relationship, partnership status and self-perceived attractiveness. We show that men prefer more feminine female faces when rating for a short-term relationship and when they have a partner (Study 1). These variables were found to interact in a follow-up study (Study 2). Men who thought themselves attractive also preferred more feminized female faces for short-term relationships than men who thought themselves less attractive (Study 1 and Study 2). In women, similar findings for masculine preferences in male faces have been interpreted as adaptive. In men, such preferences potentially reflect that attractive males are able to compete for high-quality female partners in short-term contexts. When a man has secured a mate, the potential cost of being discovered may increase his choosiness regarding short-term partners relative to unpartnered men, who can better increase their short-term mating success by relaxing their standards. Such potentially strategic preferences imply that men also face trade-offs when choosing relatively masculine or feminine faced partners. In line with a trade-off, women with feminine faces were seen as more likely to be unfaithful and more likely to pursue short-term relationships (Study 3), suggesting that risk of cuckoldry is one factor that may limit men's preferences for femininity in women and could additionally lead to preferences for femininity in short-term mates. © 2013 The British Psychological Society.

Sexual dimorphism of male face shape, partnership status and the temporal context of relationship sought modulate women's preferences for direct gaze.

PubMed

Conway, Claire A; Jones, Benedict C; DeBruine, Lisa M; Little, Anthony C

2010-02-01

Most previous studies of face preferences have investigated the physical cues that influence face preferences. Far fewer studies have investigated the effects of cues to the direction of others' social interest (i.e. gaze direction) on face preferences. Here we found that unpartnered women demonstrated stronger preferences for direct gaze (indicating social interest) from feminine male faces than from masculine male faces when judging men's attractiveness for long-term relationships, but not when judging men's attractiveness for short-term relationships. Moreover, unpartnered women's preferences for direct gaze from feminine men were stronger for long-term than short-term relationships, but there was no comparable effect for judgements of masculine men. No such effects were evident among women with romantic partners, potentially reflecting different motivations underlying partnered and unpartnered women's judgements of men's attractiveness. Collectively these findings (1) complement previous findings whereby women demonstrated stronger preferences for feminine men as long-term than short-term partners, (2) demonstrate context-sensitivity in the integration of physical and social cues in face preferences, and (3) suggest that gaze preferences may function, at least in part, to facilitate efficient allocation of mating effort.

The role of conditioning on heterosexual and homosexual partner preferences in rats.

PubMed

Coria-Avila, Genaro A

2012-01-01

Partner preferences are expressed by many social species, including humans. They are commonly observed as selective contacts with an individual, more time spent together, and directed courtship behavior that leads to selective copulation. This review discusses the effect of conditioning on the development of heterosexual and homosexual partner preferences in rodents. Learned preferences may develop when a conditioned stimulus (CS) is associated in contingency with an unconditioned stimulus (UCS) that functions as a reinforcer. Consequently, an individual may display preference for a partner that bears a CS. Some UCS may be more or less reinforcing, depending on when they are experienced, and may be different for males and females. For example, it could be that, only during periods of early development, that stimuli associated with nurture and juvenile play become conditioned. In adulthood, other stimuli such as sexual reward, cohabitation, mild stress, or even pharmacological manipulations may function as reinforcers to condition partner preferences. Evolutionary biologists and psychologists must take into consideration the idea that an individual's experience with reward (i.e. sexual and pharmacological) can override presumably 'innate' mate choices (e.g. assortativeness and orientation) or mate strategies (e.g. monogamy or polygamy) by means of Pavlovian and operant contingencies. In fact, it is likely as innate to learn about the environment in ways that maximize reward and minimize aversive outcomes, making so-called 'proximate' causes (e.g. pleasure) ultimately more powerful predictors of social behavior and choice than so-called 'ultimate' causes (e.g. genetic or reproductive fitness).

The Co-evolution of Honesty and Strategic Vigilance

PubMed Central

Heintz, Christophe; Karabegovic, Mia; Molnar, Andras

2016-01-01

We hypothesize that when honesty is not motivated by selfish goals, it reveals social preferences that have evolved for convincing strategically vigilant partners that one is a person worth cooperating with. In particular, we explain how the patterns of dishonest behavior observed in recent experiments can be motivated by preferences for social and self-esteem. These preferences have evolved because they are adaptive in an environment where it is advantageous to be selected as a partner by others and where these others are strategically vigilant: they efficiently evaluate the expected benefit of cooperating with specific partners and attend to their intentions. We specify the adaptive value of strategic vigilance and preferences for social and self-esteem. We argue that evolved preferences for social and self-esteem are satisfied by applying mechanisms of strategic vigilance to one's own behavior. We further argue that such cognitive processes obviate the need for the evolution of preferences for fairness and social norm compliance. PMID:27790162

Neonatal melanocortin receptor agonist treatment reduces play fighting and promotes adult attachment in prairie voles in a sex-dependent manner.

PubMed

Barrett, Catherine E; Modi, Meera E; Zhang, Billy C; Walum, Hasse; Inoue, Kiyoshi; Young, Larry J

2014-10-01

The melanocortin receptor (MCR) system has been studied extensively for its role in feeding and sexual behavior, but effects on social behavior have received little attention. α-MSH interacts with neural systems involved in sociality, including oxytocin, dopamine, and opioid systems. Acute melanotan-II (MTII), an MC3/4R agonist, potentiates brain oxytocin (OT) release and facilitates OT-dependent partner preference formation in socially monogamous prairie voles. Here we examined the long-term impact of early-life MCR stimulation on hypothalamic neuronal activity and social development in prairie voles. Male and female voles were given daily subcutaneous injections of 10 mg/kg MTII or saline between postnatal days (PND) 1-7. Neonatally-treated males displayed a reduction in initiated play fighting bouts as juveniles compared to control males. Neonatal exposure to MTII facilitated partner preference formation in adult females, but not males, after a brief cohabitation with an opposite-sex partner. Acute MTII injection elicited a significant burst of the immediate early gene EGR-1 immunoreactivity in hypothalamic OT, vasopressin, and corticotrophin releasing factor neurons, when tested in PND 6-7 animals. Daily neonatal treatment with 1 mg/kg of a more selective, brain penetrant MC4R agonist, PF44687, promoted adult partner preferences in both females and males compared with vehicle controls. Thus, developmental exposure to MCR agonists lead to a persistent change in social behavior, suggestive of structural or functional changes in the neural circuits involved in the formation of social relationships. Copyright © 2014 Elsevier Ltd. All rights reserved.

Knowledge and Attitudes Regarding Non-Invasive Prenatal Testing (NIPT) and Preferences for Risk Information among High School Students in Sweden.

PubMed

Georgsson, Susanne; Sahlin, Ellika; Iwarsson, Moa; Nordenskjöld, Magnus; Gustavsson, Peter; Iwarsson, Erik

2017-06-01

Non-invasive prenatal testing (NIPT) was recently introduced for prenatal testing of genetic disorders. Cell-free fetal DNA is present in maternal blood during pregnancy and enables detection of fetal chromosome aberrations in a maternal blood sample. The public perspective to this new, simple method has not been illuminated. The views of young people (i.e. future parents) are important to develop suitable counseling strategies regarding prenatal testing. The aim was to explore Swedish high school students' attitudes, knowledge and preferences regarding NIPT. A questionnaire was completed by 305 students recruited from one high school in Stockholm, November and December 2014. Most students (80 %) considered prenatal testing as good. The majority (65 %) was positive or very positive towards NIPT and 62 % stated that they potentially would like to undergo the test if they or their partner was pregnant. The vast majority (94 %) requested further information about NIPT. Most students (61 %) preferred verbal information, whereas 20 % preferred information via the Internet. The majority of the high school students was positive towards prenatal testing and most was positive towards NIPT. Further, information was requested by the vast majority before making a decision about NIPT. Most of the students preferred verbal information and to a lesser extent information via the Internet. The attitudes, knowledge and preferences for risk information concerning NIPT in young adults are important, in order to increase knowledge on how to educate and inform future parents.

A preference to bond? Male prairie voles form pair bonds even in the presence of multiple receptive females

PubMed Central

Blocker, Tomica D.; Ophir, Alexander G.

2016-01-01

Pair bonds are the cornerstone of a monogamous relationship. When individuals of the same species engage in monogamy and promiscuity (i.e. alternative reproductive tactics) it can be difficult to determine which tactic confers greater fitness, as measures of fitness can be difficult to ascertain. However, in these circumstances, whether animals preferentially establish pair bonds can reveal decisions that presumably reflect the animals’ assessment of how to best maximize reproductive success. In nature, the majority of prairie voles, Microtus ochrogaster, establishes pair bonds and engages in social monogamy while a minority of individuals remains single and presumably mates promiscuously. The existence of these two tactics raises the interesting question: do bonded male prairie voles choose to ‘settle’ (for just one partner) or are they preferentially ‘settling down’? To determine which of these two tactics is preferred, we provided single male prairie voles simultaneous access to two sexually receptive females for 24 h and then subsequently tested males in ‘partner preference tests’ with each female independently contrasted with a novel female. We aimed to determine whether males would form a pair bond with one, both or none of the original females. We found that males formed pair bonds with one of the two females. We also investigated male- and female-initiated aggression and found that during the bonding process males were more aggressive with females that they did not ultimately form a bond with. In the partner preference tests, males showed more aggression towards unfamiliar females than towards familiar females. Mismatches in male- and female-initiated aggression suggest that aggressive interactions may be perpetuated more by males than by females. Taken together, our results demonstrate that under conditions that are ideal for forgoing bonding and engaging in multiple matings, males choose to establish a pair bond, suggesting that selective pressures may have facilitated bonding by males. PMID:28579618

Variation in perceptions of physical dominance and trustworthiness predicts individual differences in the effect of relationship context on women's preferences for masculine pitch in men's voices.

PubMed

Vukovic, Jovana; Jones, Benedict C; Feinberg, David R; Debruine, Lisa M; Smith, Finlay G; Welling, Lisa L M; Little, Anthony C

2011-02-01

Several studies have found that women tend to demonstrate stronger preferences for masculine men as short-term partners than as long-term partners, though there is considerable variation among women in the magnitude of this effect. One possible source of this variation is individual differences in the extent to which women perceive masculine men to possess antisocial traits that are less costly in short-term relationships than in long-term relationships. Consistent with this proposal, here we show that the extent to which women report stronger preferences for men with low (i.e., masculine) voice pitch as short-term partners than as long-term partners is associated with the extent to which they attribute physical dominance and low trustworthiness to these masculine voices. Thus, our findings suggest that variation in the extent to which women attribute negative personality characteristics to masculine men predicts individual differences in the magnitude of the effect of relationship context on women's masculinity preferences, highlighting the importance of perceived personality attributions for individual differences in women's judgments of men's vocal attractiveness and, potentially, their mate preferences. ©2010 The British Psychological Society.

Sociocultural Beliefs Related to Sex among Mexican American Adolescents.

ERIC Educational Resources Information Center

Flores, Elena; Millstein, Susan G.; Eyre, Stephen L.

1998-01-01

In a two-phase study, Mexican American male and female adolescents listed positive and negative elements related to preferred partner qualities and engaging in sexual activity; then other Mexican American adolescents classified the items. Results suggest that adolescents' partner preferences and reasons to have sex reflected Mexican American…

Influence of mate preference and laying order on maternal allocation in a monogamous parrot species with extreme hatching asynchrony.

PubMed

Lahaye, Stefanie E P; Eens, Marcel; Iserbyt, Arne; Groothuis, Ton G G; de Vries, Bonnie; Müller, Wendt; Pinxten, Rianne

2015-05-01

It is well established that in many avian species, prenatal maternal resource allocation varies both between and within clutches and may affect offspring fitness. Differential allocation of maternal resources, in terms of egg weight and yolk composition, may therefore allow the female to adjust brood reduction and to fine-tune reproductive investment in accordance with the expected fitness returns. The adaptive value of such maternal resource allocation is thought to be context-dependent as well as species-specific. We investigated the effects of female preference for her mate on the allocation of prenatal maternal resources in the budgerigar, Melopsittacus undulatus, a monogamous species of parrot that shows an extreme hatching asynchrony. We assessed mate preferences in a two-way preference test and allowed females two breeding rounds: one with the preferred and one with the non-preferred partner. We found no effect of preference on either latency to lay or clutch size, but females mated with the preferred partner laid eggs that contained significantly more yolk. Their eggs also contained significantly more androstenedione but not testosterone. Our results suggest that in this species, female preference may influence maternal resource allocation, and that the functional roles of each androgen in the yolk should be considered separately. In addition, we found a significant effect of laying order on egg and yolk weight as well as on yolk testosterone and androstenedione levels. These measures, however, did not change linearly with the laying order and render it unlikely that female budgerigars compensate for the extreme hatching asynchrony by adjusting within-clutch allocation of prenatal maternal resources. Copyright © 2015 Elsevier Inc. All rights reserved.

The role of conditioning on heterosexual and homosexual partner preferences in rats

PubMed Central

Coria-Avila, Genaro A.

2012-01-01

Partner preferences are expressed by many social species, including humans. They are commonly observed as selective contacts with an individual, more time spent together, and directed courtship behavior that leads to selective copulation. This review discusses the effect of conditioning on the development of heterosexual and homosexual partner preferences in rodents. Learned preferences may develop when a conditioned stimulus (CS) is associated in contingency with an unconditioned stimulus (UCS) that functions as a reinforcer. Consequently, an individual may display preference for a partner that bears a CS. Some UCS may be more or less reinforcing, depending on when they are experienced, and may be different for males and females. For example, it could be that, only during periods of early development, that stimuli associated with nurture and juvenile play become conditioned. In adulthood, other stimuli such as sexual reward, cohabitation, mild stress, or even pharmacological manipulations may function as reinforcers to condition partner preferences. Evolutionary biologists and psychologists must take into consideration the idea that an individual’s experience with reward (i.e. sexual and pharmacological) can override presumably ‘innate’ mate choices (e.g. assortativeness and orientation) or mate strategies (e.g. monogamy or polygamy) by means of Pavlovian and operant contingencies. In fact, it is likely as innate to learn about the environment in ways that maximize reward and minimize aversive outcomes, making so-called ‘proximate’ causes (e.g. pleasure) ultimately more powerful predictors of social behavior and choice than so-called ‘ultimate’ causes (e.g. genetic or reproductive fitness). PMID:24693350

Intra-household work time synchronization: Togetherness or material benefits?

PubMed

van Klaveren, Chris; van den Brink, Henriette Maassen

2007-10-01

If partners derive utility from joint leisure time, it is expected that they will coordinate their work schedules in order to increase the amount of joint leisure. In order to control for differences in constraints and selection effects, this paper uses a new matching procedure, providing answers to the following questions: (1) Do partners coordinate their work schedules and does this result in work time synchronization?; (2) which partners synchronize more work hours?; and (3) is there a preference for togetherness? We find that coordination results in more synchronized work hours. The presence of children in the household is the main cause why some partners synchronize their work times less than other partners. Finally, partners coordinate their work schedules in order to have more joint leisure time, which is evidence for togetherness preferences.

Partner choice creates fairness in humans.

PubMed

Debove, Stéphane; André, Jean-Baptiste; Baumard, Nicolas

2015-06-07

Many studies demonstrate that partner choice has played an important role in the evolution of human cooperation, but little work has tested its impact on the evolution of human fairness. In experiments involving divisions of money, people become either over-generous or over-selfish when they are in competition to be chosen as cooperative partners. Hence, it is difficult to see how partner choice could result in the evolution of fair, equal divisions. Here, we show that this puzzle can be solved if we consider the outside options on which partner choice operates. We conduct a behavioural experiment, run agent-based simulations and analyse a game-theoretic model to understand how outside options affect partner choice and fairness. All support the conclusion that partner choice leads to fairness only when individuals have equal outside options. We discuss how this condition has been met in our evolutionary history, and the implications of these findings for our understanding of other aspects of fairness less specific than preferences for equal divisions of resources. © 2015 The Author(s) Published by the Royal Society. All rights reserved.

Software Acquisition Program Dynamics

DTIC Science & Technology

2011-10-24

greatest capability, which requires latest technologies • Contractors prefer using latest technologies to boost staff competency for future bids Risk...mistakes Build foundation to test future mitigation/solution approaches to assess value • Qualitatively validate new approaches before applying them to...classroom training, eLearning , certification, and more—to serve the needs of customers and partners worldwide.

Intermediate-term emotional bookkeeping is necessary for long-term reciprocal grooming partner preferences in an agent-based model of macaque groups

PubMed Central

Evers, Ellen; de Vries, Han; Spruijt, Berry M.

2016-01-01

Whether and how primates are able to maintain long-term affiliative relationships is still under debate. Emotional bookkeeping (EB), the partner-specific accumulation of emotional responses to earlier interactions, is a candidate mechanism that does not require high cognitive abilities. EB is difficult to study in real animals, due to the complexity of primate social life. Therefore, we developed an agent-based model based on macaque behavior, the EMO-model, that implements arousal and two emotional dimensions, anxiety-FEAR and satisfaction-LIKE, which regulate social behavior. To implement EB, model individuals assign dynamic LIKE attitudes towards their group members, integrating partner-specific emotional responses to earlier received grooming episodes. Two key parameters in the model were varied to explore their effects on long-term affiliative relationships: (1) the timeframe over which earlier affiliation is accumulated into the LIKE attitudes; and (2) the degree of partner selectivity. EB over short and long timeframes gave rise to low variation in LIKE attitudes, and grooming partner preferences were only maintained over one to two months. Only EB over intermediate-term timeframes resulted in enough variation in LIKE attitudes, which, in combination with high partner selectivity, enables individuals to differentiate between regular and incidental grooming partners. These specific settings resulted in a strong feedback between differentiated LIKE attitudes and the distribution of grooming, giving rise to strongly reciprocated partner preferences that could be maintained for longer periods, occasionally up to one or two years. Moreover, at these settings the individual’s internal, socio-emotional memory of earlier affiliative episodes (LIKE attitudes) corresponded best to observable behavior (grooming partner preferences). In sum, our model suggests that intermediate-term LIKE dynamics and high partner selectivity seem most plausible for primates relying on emotional bookkeeping to maintain their social bonds. PMID:26839737

Intermediate-term emotional bookkeeping is necessary for long-term reciprocal grooming partner preferences in an agent-based model of macaque groups.

PubMed

Evers, Ellen; de Vries, Han; Spruijt, Berry M; Sterck, Elisabeth H M

2016-01-01

Whether and how primates are able to maintain long-term affiliative relationships is still under debate. Emotional bookkeeping (EB), the partner-specific accumulation of emotional responses to earlier interactions, is a candidate mechanism that does not require high cognitive abilities. EB is difficult to study in real animals, due to the complexity of primate social life. Therefore, we developed an agent-based model based on macaque behavior, the EMO-model, that implements arousal and two emotional dimensions, anxiety-FEAR and satisfaction-LIKE, which regulate social behavior. To implement EB, model individuals assign dynamic LIKE attitudes towards their group members, integrating partner-specific emotional responses to earlier received grooming episodes. Two key parameters in the model were varied to explore their effects on long-term affiliative relationships: (1) the timeframe over which earlier affiliation is accumulated into the LIKE attitudes; and (2) the degree of partner selectivity. EB over short and long timeframes gave rise to low variation in LIKE attitudes, and grooming partner preferences were only maintained over one to two months. Only EB over intermediate-term timeframes resulted in enough variation in LIKE attitudes, which, in combination with high partner selectivity, enables individuals to differentiate between regular and incidental grooming partners. These specific settings resulted in a strong feedback between differentiated LIKE attitudes and the distribution of grooming, giving rise to strongly reciprocated partner preferences that could be maintained for longer periods, occasionally up to one or two years. Moreover, at these settings the individual's internal, socio-emotional memory of earlier affiliative episodes (LIKE attitudes) corresponded best to observable behavior (grooming partner preferences). In sum, our model suggests that intermediate-term LIKE dynamics and high partner selectivity seem most plausible for primates relying on emotional bookkeeping to maintain their social bonds.

Women's preferences for sexual dimorphism in height depend on menstrual cycle phase and expected duration of relationship.

PubMed

Pawlowski, Boguslaw; Jasienska, Grazyna

2005-09-01

Human mate preferences are related to many morphological traits, such as female waist-to-hip ratio (WHR), body mass index (BMI), male height or facial symmetry. People also vary in preferences for sexual dimorphism in stature (SDS = male height/female height) between themselves and a potential partner. Here, we demonstrate that women adjust their preference for SDS not only in relation to their own height but also in relation to (1) the phase of menstrual cycle during which their preferences were studied and (2) the sexual strategy (short- versus long-term) they were asked to choose. Taller males (larger SDS) were preferred more often when women were in the follicular (i.e. fertile) phase of their menstrual cycle and when the partners were chosen for short-term relationships. These effects were independent of woman's height. The results show that women in a potentially fertile phase of their menstrual cycle and when choosing a partner who might be less likely to invest in children select genes of taller males.

Age Limits.

PubMed

Antfolk, Jan

2017-03-01

Whereas women of all ages prefer slightly older sexual partners, men-regardless of their age-have a preference for women in their 20s. Earlier research has suggested that this difference between the sexes' age preferences is resolved according to women's preferences. This research has not, however, sufficiently considered that the age range of considered partners might change over the life span. Here we investigated the age limits (youngest and oldest) of considered and actual sex partners in a population-based sample of 2,655 adults (aged 18-50 years). Over the investigated age span, women reported a narrower age range than men and women tended to prefer slightly older men. We also show that men's age range widens as they get older: While they continue to consider sex with young women, men also consider sex with women their own age or older. Contrary to earlier suggestions, men's sexual activity thus reflects also their own age range, although their potential interest in younger women is not likely converted into sexual activity. Compared to homosexual men, bisexual and heterosexual men were more unlikely to convert young preferences into actual behavior, supporting female-choice theory.

The Political Values and Choices of Husbands and Wives

ERIC Educational Resources Information Center

Kan, Man Yee; Heath, Anthony

2006-01-01

This article applies theoretical ideas in the literature on the household division of labor to the analysis of partners' political preferences. We regress men's and women's political party preferences on their own and their partners' characteristics using data from the 1991 British Household Panel Survey (N = 2,846). We find a symmetrical pattern…

Preference for human body odors is influenced by gender and sexual orientation.

PubMed

Martins, Yolanda; Preti, George; Crabtree, Christina R; Runyan, Tamar; Vainius, Aldona A; Wysocki, Charles J

2005-09-01

Human body odor may contribute to selection of partners. If so, sexual orientation may influence preference for and perhaps production of human body odors. In a test of these hypotheses, heterosexual and homosexual males and females made two-alternative forced-choice preference judgments for body odors obtained from other heterosexual and homosexual males and females. Subjects chose between odors from (a) heterosexual males and gay males, (b) heterosexual males and heterosexual females, (c) heterosexual females and lesbians, and (d) gay males and lesbians. Results indicate that differences in body odor are detected and responded to on the basis of, in part, an individual's gender and sexual orientation. Possible mechanisms underlying these findings are discussed.

Play preference of children with ADHD and typically developing children in Brazil: a pilot study.

PubMed

Pfeifer, Luzia Iara; Terra, Lauana Nogueira; dos Santos, Jair Lício Ferreira; Stagnitti, Karen Ellen; Panúncio-Pinto, Maria Paula

2011-12-01

Children with attention deficit hyperactivity disorder (ADHD) have been reported to have play deficits, which can cause problems in occupational development. The aim of this paper was to report research findings on children with ADHD and typically developing children in relation to preference of play partners, play places, toys and type of play. Thirty-two school aged children from low socioeconomic status were divided into two groups. One group of 16 children with ADHD were matched with 16 typically developing children. There were no significant differences between the two groups in relation to play partners, with classmates being the most frequent play partner for both groups. There were significant differences between the two groups in preferred place to play. Children with ADHD preferred to play in school and typically developing children preferred to play on the street. There were significant differences in relation to toys and type of play engaged in with children with ADHD preferring educational materials and typically developing children preferring electronic games. These findings add to knowledge of Brazilian children with ADHD and their play preferences. Comparisons are made with research with Australian children with and without ADHD. © 2011 The Authors. Australian Occupational Therapy Journal © 2011 Occupational Therapy Australia.

Coevolution of Cooperation and Partner Rewiring Range in Spatial Social Networks

NASA Astrophysics Data System (ADS)

Khoo, Tommy; Fu, Feng; Pauls, Scott

2016-11-01

In recent years, there has been growing interest in the study of coevolutionary games on networks. Despite much progress, little attention has been paid to spatially embedded networks, where the underlying geographic distance, rather than the graph distance, is an important and relevant aspect of the partner rewiring process. It thus remains largely unclear how individual partner rewiring range preference, local vs. global, emerges and affects cooperation. Here we explicitly address this issue using a coevolutionary model of cooperation and partner rewiring range preference in spatially embedded social networks. In contrast to local rewiring, global rewiring has no distance restriction but incurs a one-time cost upon establishing any long range link. We find that under a wide range of model parameters, global partner switching preference can coevolve with cooperation. Moreover, the resulting partner network is highly degree-heterogeneous with small average shortest path length while maintaining high clustering, thereby possessing small-world properties. We also discover an optimum availability of reputation information for the emergence of global cooperators, who form distant partnerships at a cost to themselves. From the coevolutionary perspective, our work may help explain the ubiquity of small-world topologies arising alongside cooperation in the real world.

Higher-order risk preferences in social settings.

PubMed

Heinrich, Timo; Mayrhofer, Thomas

2018-01-01

We study prudence and temperance (next to risk aversion) in social settings. Previous experimental studies have shown that these higher-order risk preferences affect the choices of individuals deciding privately on lotteries that only affect their own payoff. Yet, many risky and financially relevant decisions are made in the social settings of households or organizations. We elicit higher-order risk preferences of individuals and systematically vary how an individual's decision is made (alone or while communicating with a partner) and who is affected by the decision (only the individual or the partner as well). In doing so, we can isolate the effects of other-regarding concerns and communication on choices. Our results reveal that the majority of choices are risk averse, prudent, and temperate across social settings. We also observe that individuals are influenced significantly by the preferences of a partner when they are able to communicate and choices are payoff-relevant for both of them.

Estimates and influences of reflective opposite-sex norms on alcohol use among a high-risk sample of college students: Exploring Greek-affiliation and gender effects

PubMed Central

Hummer, Justin F.; LaBrie, Joseph W.; Lac, Andrew; Sessoms, Ashley; Cail, Jessica

2012-01-01

Reflective opposite sex norms are behavior that an individual believes the opposite sex prefers them to do. The current study extends research on this recently introduced construct by examining estimates and influences of reflective norms on drinking in a large high-risk heterosexual sample of male and female college students from two universities. Both gender and Greek-affiliation served as potential statistical moderators of the reflective norms and drinking relationship. All participants (N = 1790; 57% female) answered questions regarding the amount of alcohol they believe members of the opposite sex would like their opposite sex friends, dates, and sexual partners to drink. Participants also answered questions regarding their actual preferences for drinking levels in each of these three relationship categories. Overall, women overestimated how much men prefer their female friends and potential sexual partners to drink, whereas men overestimated how much women prefer their sexual partners to drink. Greek-affiliated males demonstrated higher reflective norms than non-Greek males across all relationship categories, and for dating partners, only Greek-affiliated males misperceived women’s actual preferences. Among women however, there were no differences between reflective norms estimates or the degree of misperception as a function of Greek status. Most importantly, over and above perceived same-sex social norms, higher perceived reflective norms tended to account for greater variance in alcohol consumption for Greeks (vs. non-Greeks) and males (vs. females), particularly within the friend and sexual partner contexts. The findings highlight that potential benefits might arise if existing normative feedback interventions were augmented with reflective normative feedback designed to target the discrepancy between perceived and actual drinking preferences of the opposite sex. PMID:22305289

Partner choice, relationship satisfaction, and oral contraception: the congruency hypothesis.

PubMed

Roberts, S Craig; Little, Anthony C; Burriss, Robert P; Cobey, Kelly D; Klapilová, Kateřina; Havlíček, Jan; Jones, Benedict C; DeBruine, Lisa; Petrie, Marion

2014-07-01

Hormonal fluctuation across the menstrual cycle explains temporal variation in women's judgment of the attractiveness of members of the opposite sex. Use of hormonal contraceptives could therefore influence both initial partner choice and, if contraceptive use subsequently changes, intrapair dynamics. Associations between hormonal contraceptive use and relationship satisfaction may thus be best understood by considering whether current use is congruent with use when relationships formed, rather than by considering current use alone. In the study reported here, we tested this congruency hypothesis in a survey of 365 couples. Controlling for potential confounds (including relationship duration, age, parenthood, and income), we found that congruency in current and previous hormonal contraceptive use, but not current use alone, predicted women's sexual satisfaction with their partners. Congruency was not associated with women's nonsexual satisfaction or with the satisfaction of their male partners. Our results provide empirical support for the congruency hypothesis and suggest that women's sexual satisfaction is influenced by changes in partner preference associated with change in hormonal contraceptive use. © The Author(s) 2014.

Migration Decisions within Dual-Earner Partnerships: A Test of Bargaining Theory

ERIC Educational Resources Information Center

Abraham, Martin; Auspurg, Katrin; Hinz, Thomas

2010-01-01

This article focuses on the problems faced by dual-earner partnerships arising from the regional coordination of the partners' careers. It is still unknown whether the fact that couples are less mobile than singles is caused by homogeneous preferences within couples or by a process of balancing conflicting interests. Consequently, we analyze the…

Sociodemographic Differences in Clients Preferring Video-Call Over In-person Interview: A Pilot Study of HIV Tele-partner Services.

PubMed

Udeagu, Chi-Chi N; Shah, Sharmila; Toussaint, Magalieta M; Pickett, Leonard

2017-11-01

The New York City Department of Health Disease Intervention Specialists (DIS) routinely contact newly HIV-diagnosed persons via telephone calls and in-person meetings to conduct partner services (PS) interviews in order to elicit the names and contact information of the HIV-exposed partners for notification and HIV-testing, and to assist clients with linkage to care. From October 2013 to December 2015, we offered PS interviews conducted via video-call alongside voice-call and in-person modes in a selected geographic area of NYC. PS interviews were conducted according to the clients' preferred mode (in-person, voice- or video-call) and location (health care facility, clients' residences, or other NYC locations). At the conclusion of the PS interviews, DIS elicited responses from persons interviewed via video-call on their perception, satisfaction and personal experiences using video-call for public health and personal purposes. Acceptance and satisfaction with PS interviews via video-call were high among clients aged <30 years, men who have sex with men, or with education above high school; while PS yields were similar across modes. These results provide evidence of the potential effectiveness of video-call interviews for specific populations.

Mesotocin influences pinyon jay prosociality.

PubMed

Duque, J F; Leichner, W; Ahmann, H; Stevens, J R

2018-04-01

Many species exhibit prosocial behaviour, in which one individual's actions benefit another individual, often without an immediate benefit to itself. The neuropeptide oxytocin is an important hormonal mechanism influencing prosociality in mammals, but it is unclear whether the avian homologue mesotocin plays a similar functional role in birds. Here, we experimentally tested prosociality in pinyon jays ( Gymnorhinus cyanocephalus ), a highly social corvid species that spontaneously shares food with others. First, we measured prosocial preferences in a prosocial choice task with two different pay-off distributions: Prosocial trials delivered food to both the subject and either an empty cage or a partner bird, whereas Altruism trials delivered food only to an empty cage or a partner bird (none to subject). In a second experiment, we examined whether administering mesotocin influenced prosocial preferences. Compared to choices in a control condition, we show that subjects voluntarily delivered food rewards to partners, but only when also receiving food for themselves (Prosocial trials), and administration of high levels of mesotocin increased these behaviours. Thus, in birds, mesotocin seems to play a similar functional role in facilitating prosocial behaviours as oxytocin does in mammals, suggesting an evolutionarily conserved hormonal mechanism for prosociality. © 2018 The Author(s).

Effects of attractiveness and status in dating desire in homosexual and heterosexual men and women.

PubMed

Ha, Thao; van den Berg, Judith E M; Engels, Rutger C M E; Lichtwarck-Aschoff, Anna

2012-06-01

The present study examined partner preferences of homosexual and heterosexual men and woman, focusing on attractiveness and status. Homosexual (N=591 men; M age=28.87 years, SD=10.21; N=249 women; M age=33.36 years, SD=13.12) and heterosexual participants (N=346 men; M age=39.74 years, SD=14.26; N=400 women; M age=35.93 years, SD=13.72) rated the importance of attractiveness and social status of potential partners and then, in a vignette test, expressed their desire to date hypothetical potential partners based on photographs that varied in attractiveness and status-related profiles. With ratings, heterosexual men valued attractiveness the most, followed by homosexual men, heterosexual women, and homosexual women. Heterosexual women rated social status as most important. When status profiles were manipulated and accompanied with photographs of faces, the pattern of differences between homosexuals and heterosexuals supported the self-reported results. Overall, homosexual men and women have similar mate preferences to heterosexual men and women by showing more dating desire for attractive and high social status persons. Compared to attractiveness, status played a smaller role in dating desire.

Prenatal programming of sexual partner preference: the ram model.

PubMed

Roselli, C E; Stormshak, F

2009-03-01

In our laboratory, the domestic ram is used as an experimental model to study the early programming of neural mechanisms underlying same-sex partner preference. This interest developed from the observation that approximately 8% of domestic rams are sexually attracted to other rams (male-oriented) in contrast to the majority of rams that are attracted to oestrous ewes (female-oriented). One prominent feature of sexual differentiation in many species is the presence of a sexually dimorphic nucleus (SDN) in the preoptic/anterior hypothalamus that is larger in males than in females. Lesion studies in rats and ferrets implicate the SDN in the expression of sexual preferences. We discovered an ovine SDN (oSDN) in the preoptic/anterior hypothalamus that is smaller in male- than in female-oriented rams and similar in size to the oSDN of ewes. Neurones of the oSDN show abundant aromatase expression that is also reduced in male-oriented compared to female-oriented rams. This observation suggests that sexual partner preferences are neurologically hard-wired and could be influenced by hormones. Aromatase-containing neurones constitute a nascent oSDN as early as day 60 of gestation, which becomes sexually dimorphic by day 135 of gestation when it is two-fold larger in males than in females. Exposure of fetal female lambs to exogenous testosterone from days 30-90 of gestation resulted in a masculinised oSDN. These data demonstrate that the oSDN develops prenatally and may influence adult sexual preferences. Surprisingly, inhibition of aromatase activity in the brain of ram foetuses during the critical period did not interfere with defeminisation of adult sexual partner preference or oSDN volume. These results fail to support an essential role for neural aromatase in the sexual differentiation of sheep brain and behaviour. Thus, we propose that oSDN morphology and male-typical partner preferences may instead be programmed through an androgen receptor mechanism not involving aromatisation.

Patient and partner perspectives on patient-delivered partner screening: acceptability, benefits, and barriers.

PubMed

McBride, Kimberly R; Goldsworthy, Richard C; Fortenberry, J Dennis

2010-10-01

The study examined willingness to engage in patient-delivered partner screening (PDPS) and preferences for expedited partner services (EPS). Forty urban U.S. sexually transmitted infection (STI) clinic patients participated in individual mixed-methods interviews exploring EPS preferences and PDPS willingness. Most participants selected PDPS and PDPT together and uptake varied by patient–partner relationship closeness. For PDPS, several potentially important barriers and benefits were identified. Perceived benefits included improved sexual health for patients and their sexual partner(s) as well as convenience, privacy, and the potential to enhance trust between sexual partners. Perceived barriers included concerns about PDPS processes (e.g., time it would take to receive the result, risk of sample contamination), the accuracy of results, STI stigma and associated blame, lack of trust for a sexual partner, and the packaging/appearance of the screening kit. PDPS affords benefits and may overcome treatment barriers in some situations; however, it shares common PDPT barriers and has its own unique challenges. There are also concerns regarding how the offer of PDPS may interact with PDPT utilization.

Social embeddedness and economic opportunism: a game situation.

PubMed

Sakalaki, Maria; Fousiani, Kyriaki

2012-06-01

According to Evolutionary Game Theory, multiple exchanges with partners are necessary to foster cooperation. Multiple exchanges with partners tend to enhance the good experience of the partners and the predictability of their behaviour and should therefore increase cooperativeness. This study explored whether social embeddedness, or the preference for close and stable social relationships, a variable which tends to increase multiple exchanges, is associated with more cooperative attitudes; and whether social embeddedness increases cooperative behavior towards unknown partners in a game situation. The first study, with 169 undergraduates, indicated that social embeddedness (preference for close and durable social relations) was negatively associated with opportunistic attitudes. The second study had a sample of 60 undergraduates playing a Trust Game with unknown partners and showed that self-reported social embeddedness was positively correlated with scores for cooperative economic behavior towards the partners. These results highlight the relationships of social embeddedness with cooperative attitudes and behaviour.

Socioemotional selectivity in cancer patients.

PubMed

Pinquart, Martin; Silbereisen, Rainer K

2006-06-01

This study analyzed the contact preferences of newly diagnosed cancer patients and healthy control group participants. In line with the theory of socioemotional selectivity, patients were more likely than control participants to prefer contact with familiar social partners, but this difference was stronger in younger and middle-aged patients than in older patients. Across a 6-month interval, patients' contact preferences changed according to the perceived success of therapy. For example, if therapy was perceived to be successful, patients showed an increasing interest in contacts with unfamiliar social partners. Results indicate that contact preferences are adapted to the perception of limited versus extended future lifetime. Copyright (c) 2006 APA, all rights reserved.

A Survey of Patient and Partner Outcome and Treatment Preferences in Mild Cognitive Impairment.

PubMed

Smith, Glenn E; Chandler, Melanie; Fields, Julie A; Aakre, Jeremiah; Locke, Dona E C

2018-05-18

The patient-centered movement in health care is increasing efforts to design studies and interventions that address the outcomes that matter most to patients and their families. Research has not adequately addressed Alzheimer's disease patient and caregiver preferences. To survey the outcome and treatment preferences of patients and caregivers who had completed a multicomponent behavioral intervention for mild cognitive impairment (MCI). Extending prior work, we conducted an online survey regarding outcome and intervention preferences. Participants were patients with MCI and partners who completed the HABIT Healthy Action to Benefit Independence & Thinking ® program. Both patient and partner respondents ranked patient quality of life as the highest priority, followed by patient self-efficacy, functional status, patient mood, and patient memory performance. Distressing behaviors and caregiver outcomes (burden, mood, and self-efficacy) had low rankings. Regarding the importance of HABIT ® program components, memory compensation training was ranked highest and wellness education lowest by all groups. Additional research should compare patient preference for patient reported outcomes, traditional neuropsychological and clinician outcomes, and modern biomarker outcomes.

Similarities and differences regarding changes in attachment preferences and attachment styles in relation to romantic relationship length: longitudinal and concurrent analyses.

PubMed

Umemura, Tomotaka; Lacinová, Lenka; Kotrčová, Kristína; Fraley, R Chris

2018-04-01

This study examines whether attachment preferences and attachment styles with different figures (mother, father, romantic partner, and friends) change over the course of a romantic relationship. Study 1 employed a three-wave longitudinal sample of Czech young adults who were currently in a romantic relationship (N = 870; mean age = 21.57; SD = 1.51; 81% females). Multilevel modeling analyses revealed that, as romantic relationships progressed, attachment preferences for romantic partners increased and preferences for friends decreased. However, preferences for the mother or for the father did not change over time. The parallel pattern was found for attachment avoidance; as romantic relationships progressed, attachment avoidance with romantic partners decreased and avoidance with the best friend increased. Avoidance with mother or with father, however, did not change over time. Study 2 employed a cross-sectional international sample (n = 2,593; mean age = 31.99; SD = 12.13; 79% females). Multiple regression analyses replicated the findings of attachment avoidance in the longitudinal data.

Public accountants' field dependence: Canadian evidence.

PubMed

Hicks, Elizabeth; Bagg, Robert; Doyle, Wendy; Young, Jeffrey D

2007-12-01

The cognitive styles of 113 practicing, professional accountants from Nova Scotia, Canada were examined using the Group Embedded Figures Test. They completed a demographic survey for descriptive information as well as their rank in the firm and preferred area of professional practice. Analysis suggested professional accountants tend to be more analytical than intuitive in cognitive style and, consistent with recent findings in other fields, men and women in accounting do not appear to be different in cognitive style. No statistically significant differences were found on the embedded figures scores across ranks of trainee, manager, and partner or across select, preferred areas of professional practice.

The best men are (not always) already taken: female preference for single versus attached males depends on conception risk.

PubMed

Bressan, Paola; Stranieri, Debora

2008-02-01

Because men of higher genetic quality tend to be poorer partners and parents than men of lower genetic quality, women may profit from securing a stable investment from the latter, while obtaining good genes via extrapair mating with the former. Only if conception occurs, however, do the evolutionary benefits of such a strategy overcome its costs. Accordingly, we predicted that (a) partnered women should prefer attached men, because such men are more likely than single men to have pair-bonding qualities, and hence to be good replacement partners, and (b) this inclination should reverse when fertility rises, because attached men are less available for impromptu sex than single men. In this study, 208 women rated the attractiveness of men described as single or attached. As predicted, partnered women favored attached men at the low-fertility phases of the menstrual cycle, but preferred single men (if masculine, i.e., advertising good genetic quality) when conception risk was high.

The influence of kinship and dominance hierarchy on grooming partner choice in free-ranging Macaca mulatta brevicaudus.

PubMed

Wu, Cheng-Feng; Liao, Zhi-Jie; Sueur, Cedric; Sha, John Chih Mun; Zhang, Jie; Zhang, Peng

2018-04-18

In group-living animals, individuals do not interact uniformly with their conspecifics. Among primates, such heterogeneity in partner choice can be discerned from affiliative grooming patterns. While the preference for selecting close kin as grooming partners is ubiquitous across the primate order, the selection of higher-ranking non-kin individuals as grooming partners is less common. We studied a group of provisioned rhesus macaques (Macaca mulatta brevicaudus) on Hainan Island, China, to examine rank-related benefits of grooming exchanges and the influence of kin relationships. We tested four hypotheses based on Seyfarth's model: (1) there will be kin preference in grooming relationships; (2) grooming between non-kin individuals will be directed up the dominance rank; (3) grooming between non-kin individuals will reduce aggression from higher-ranking ones; and (4) non-kin individuals will spend more time grooming with adjacent ranked ones. We found that grooming relationships between kin individuals were stronger than those between non-kin individuals. For non-kin relationships, lower-ranking individuals received less aggression from higher-ranking ones through grooming; a benefit they could not derive through grooming exchanges with individuals related by kinship. Individuals spent more time grooming adjacent higher-ranking non-kin individuals and higher-ranking individuals also received more grooming from non-kin individuals. Our results supported Seyfarth's model for predicting partner choice between non-kin individuals. For relationships between kin individuals, we found results that were not consistent with prediction for the exchanges of aggression and grooming, indicating the importance to control for the influence of kinship in future studies.

Exploring and Adapting a Conceptual Model of Sexual Positioning Practices and Sexual Risk Among HIV-Negative Black Men Who Have Sex With Men.

PubMed

Dangerfield, Derek T; Ober, Allison J; Smith, Laramie R; Shoptaw, Steven; Bluthenthal, Ricky N

2018-02-21

Estimates show a 50% lifetime human immunodeficiency virus (HIV) risk among Black men who have sex with men (BMSM) in the United States(U.S.). Studying the dynamics of sexual positioning practices among BMSM could provide insights into the disparities observed among U.S. groups of men who have sex with men (MSM). This study explored sexual positioning dynamics among HIV-negative BMSM and how they aligned with a theoretical model of sexual positioning and HIV/sexually transmitted infection (STI) risk among MSM. In-depth qualitative interviews were conducted with 29 HIV-negative BMSM between ages 25 and 35 in Los Angeles. Comments related to sexual behaviors were reviewed for relevance regarding oral or anal sexual positioning practices. Data presented represent the range of themes related to decision making regarding sexual positioning. Personal preference, partner attraction, HIV avoidance, and feeling obligated to practice partner preferences influenced sexual positioning. Drug use also affected decision making and was sometimes preferred in order to practice receptive anal intercourse. These variables build on the conceptual model of sexual positioning practices and sexual risk, and add understanding to the relationship between preferences, practices, and risk management. Future research on risk among HIV-negative BMSM should quantify the relative impact of personal preferences, partner attraction, partner type, compromise, and substance use on sexual positioning practices and risk.

When the difference is in the details: a critique of Zentner and Mitura (2012) "Stepping out of the caveman's shadow: Nations' gender gap predicts degree of sex differentiation in mate preferences".

PubMed

Schmitt, David P

2012-10-29

In a recent 10-nation study, Zentner and Mitura (2012) reported observing smaller sex differences in mate preferences within nations that have higher gender parity. As noted in previous research, and in a re-analysis of Zentner and Mitura's own data, sex differences in some mate preferences (e.g., long-term mate preferences for physical attractiveness) are either unrelated to or actually get larger with higher national gender parity. It is critically important to distinguish among mate preference domains when looking for patterns of sexual differentiation across nations. Indeed, for many psychological domains (e.g., attachment styles, Big Five traits, Dark Triad traits, self-esteem, personal values, depression, emotional expression, crying behavior, intimate partner violence, tested mental abilities, health indicators; see Schmitt, 2012), sex differences are demonstrably larger in nations with higher sociopolitical gender parity. By not distinguishing among mate preferences, Zentner and Mitura committed a form of the ecological fallacy-making false conclusions about individual mate preferences when looking only at associations among groups of mate preferences.

The role of ego-identity status in mating preferences.

PubMed

Dunkel, Curtis S; Papini, Dennis R

2005-01-01

This study was designed to examine the role ego-identity plays in the mating preferences of late adolescents. In addition to examining the variance in mating preferences explained by ego-identity status, it was hoped that the results could assist in testing the competing Sexual Strategies (Buss & Schmitt, 1993) and Social Role (Eagly & Wood, 1999) theories. Ego-identity and the sex of the participant accounted for a significant amount of variance in the number of sexual partners desired and the penchant for short-term mating. The sex of the participant was the lone predictor of the importance placed on the mate characteristics of physical attractiveness and earning capacity with females placing more emphasis on the former and males placing more emphasis on the latter characteristic.

When and why do ideal partner preferences affect the process of initiating and maintaining romantic relationships?

PubMed

Eastwick, Paul W; Finkel, Eli J; Eagly, Alice H

2011-11-01

Three studies explored how the traits that people ideally desire in a romantic partner, or ideal partner preferences, intersect with the process of romantic relationship initiation and maintenance. Two attraction experiments in the laboratory found that, when participants evaluated a potential romantic partner's written profile, they expressed more romantic interest in a partner whose traits were manipulated to match (vs. mismatch) their idiosyncratic ideals. However, after a live interaction with the partner, the match vs. mismatch manipulation was no longer associated with romantic interest. This pattern appeared to have emerged because participants reinterpreted the meaning of the traits as they applied to the partner, a context effect predicted by classic models of person perception (S. E. Asch, 1946). Finally, a longitudinal study of middle-aged adults demonstrated that participants evaluated a current romantic partner (but not a partner who was merely desired) more positively to the extent that the partner matched their overall pattern of ideals across several traits; the match in level of ideals (i.e., high vs. low ratings) was not relevant to participants' evaluations. In general, the match between ideals and a partner's traits may predict relational outcomes when participants are learning about a partner in the abstract and when they are actually in a relationship with the partner, but not when considering potential dating partners they have met in person.

Partner support and maternal depression in the context of the Iowa floods.

PubMed

Brock, Rebecca L; O'Hara, Michael W; Hart, Kimberly J; McCabe, Jennifer E; Williamson, J Austin; Laplante, David P; Yu, Chunbo; King, Suzanne

2014-12-01

A systematic investigation of the role of prenatal partner support in perinatal maternal depression was conducted. Separate facets of partner support were examined (i.e., received support and support adequacy) and a multidimensional model of support was applied to investigate the effects of distinct types of support (i.e., informational, physical comfort, emotional/esteem, and tangible support). Both main and stress-buffering models of partner support were tested in the context of prenatal maternal stress resulting from exposure to a natural disaster. Questionnaire data were analyzed from 145 partnered women using growth curve analytic techniques. Results indicate that received support interacts with maternal flood stress during pregnancy to weaken the association between stress and trajectories of maternal depression from pregnancy to 30 months postpartum. Support adequacy did not interact with stress, but was associated with levels of depressive symptoms controlling for maternal stress and received support. Results demonstrate the distinct roles of various facets and types of support for a more refined explanatory model of prenatal partner support and perinatal maternal depression. Results inform both main effect and stress buffering models of partner support as they apply to the etiology of perinatal maternal depression, and highlight the importance of promoting partner support during pregnancy that matches support preferences.

Lack of support for relation between woman's masculinity preference, estradiol level and mating context.

PubMed

Marcinkowska, Urszula M; Ellison, Peter T; Galbarczyk, Andrzej; Milkowska, Karolina; Pawlowski, Boguslaw; Thune, Inger; Jasienska, Grazyna

2016-02-01

It has been proposed that women's preferences for male facial sexual dimorphism are positively correlated with conception probability and differ between short- and long-term mating contexts. In this study, we tested this assumption by analyzing relationships between estradiol levels to the women's preferences of male faces that were manipulated to vary in masculinity. Estradiol was measured in daily saliva samples throughout the entire menstrual cycle collected by Polish women with regular menstrual cycles. In our analyses, we included the three most commonly used definitions of the fertile window in the literature. After computing the overall masculinity preference of each participant and measuring hormone levels, we found that i) the timing of ovulation varied greatly among women (between -11 and -17days from the onset of the next menses, counting backwards), ii) there was no relationship between daily, measured during the day of the test (N=83) or average for the cycle (N=115) estradiol levels and masculinity preferences, iii) there were no differences in masculinity preferences between women in low- and high-conception probability phases of the cycle, and iv) there were no differences in masculinity preferences between short- and long-term mating contexts. Our results do not support the idea that women's preferences for a potential sexual partner's facial masculinity fluctuate throughout the cycle. Copyright © 2015 Elsevier Inc. All rights reserved.

Business Partnerships: Sex and Attractiveness Stereotypes.

ERIC Educational Resources Information Center

Kushner, T.

1982-01-01

Examined the preference for men over women as business partners in three studies. Results showed that both men and women tended to use masculine names when naming imaginary partners, and chose attractive males most and unattractive females least when choosing imaginary partners from photographs. (WAS)

Relationship between the Infant Feeding Preferences of Chinese Mothers' Immediate Social Network and Early Breastfeeding Cessation.

PubMed

Bai, Dorothy Li; Fong, Daniel Yee Tak; Lok, Kris Yuet Wan; Tarrant, Marie

2016-05-01

The relationship between support from members of a mother's social network and breastfeeding continuation is receiving increased attention. The objectives of this study were to describe the infant feeding preferences of Chinese mothers' immediate social network and to examine the association between these preferences and early breastfeeding cessation. In total, 1172 mother-infant pairs were recruited from 4 public hospitals in Hong Kong and followed prospectively for 12 months or until breastfeeding stopped. Over 40% of participants' partners preferred breastfeeding and half had no infant feeding preference. Only about 20% of participants' mothers or mothers-in-law preferred breastfeeding, and less than 10% reported that all of the 3 significant family members (partner, mother, and mother-in-law) preferred breastfeeding. The partner's preference for infant formula or mixed feeding (odds ratio [OR], 2.60; 95% confidence interval [CI], 1.43-4.71) or having no preference (OR, 1.64; 95% CI, 1.16-2.30) was strongly associated with higher odds of stopping breastfeeding before 1 month. For every additional family member who preferred breastfeeding, the odds of stopping breastfeeding was reduced by almost 20% (OR, 0.81; 95% CI, 0.68-0.97). However, living with a parent-in-law (OR, 1.45; 95% CI, 1.02-2.07) was also a predictor of early breastfeeding cessation. Knowing someone who had breastfed for ≥ 1 month (OR, 0.64; 95% CI, 0.42-0.97) or having been breastfed as a child (OR, 0.67; 95% CI, 0.45-0.98) significantly lowered the odds of early breastfeeding cessation. The infant feeding preferences of mothers' immediate social network are significantly associated with breastfeeding continuation. Prenatal breastfeeding education programs should involve significant family members to promote breastfeeding. © The Author(s) 2016.

Sexual behaviors, sexual orientation and gender identity in adult intersexuals: a pilot study.

PubMed

Schober, J M

2001-06-01

Sexual preference and adjustment of intersexuals have rarely been investigated. Interview techniques were used to explore these issues. Ten adult intersexuals (average age 34.2 years) were randomly selected from Intersex Society of North America members. Of the 10 subjects 8 had initially been gender assigned as female and 2 as male. A structured telephone interview was used to assess sexual orientation, sexual activity and satisfaction with gender assignment. Sexual debut occurred at age 18.1 years (range 15 to 22). At debut, 4 females and 2 males engaged in heterosexual intercourse, and 4 females engaged in gynephilic (female) sexual contact. Despite female gender assignment of 8 and initial heterosexual activity by 4 subjects, the final choice of a sexual partner was female in all 8. Both males had initial heterosexual contact but only 1 continued to prefer female partners. Current number of sexual partners averaged 0.9 (range 0 to 2) and total number of sexual partners ranged from 1 to 300. Currently, 9 subjects are in a committed sexual relationship and 8 are able to achieve orgasm. Of the subjects 8 preferred being identified as intersexual, 1 male as male and 1 female as female. Two intersexuals with initial female gender assignment were undergoing male reassignment. Most intersexuals preferred being identified as intersexual and had female partners. Most reported being satisfied with overall physical appearance but satisfaction with genitalia was highly variable. Based on these results, further study of a larger population is warranted.

Menstrual cycle phase alters women's sexual preferences for composers of more complex music.

PubMed

Charlton, Benjamin D

2014-06-07

Over 140 years ago Charles Darwin first argued that birdsong and human music, having no clear survival benefit, were obvious candidates for sexual selection. Whereas the first contention is now universally accepted, his theory that music is a product of sexual selection through mate choice has largely been neglected. Here, I provide the first, to my knowledge, empirical support for the sexual selection hypothesis of music evolution by showing that women have sexual preferences during peak conception times for men that are able to create more complex music. Two-alternative forced-choice experiments revealed that woman only preferred composers of more complex music as short-term sexual partners when conception risk was highest. No preferences were displayed when women chose which composer they would prefer as a long-term partner in a committed relationship, and control experiments failed to reveal an effect of conception risk on women's preferences for visual artists. These results suggest that women may acquire genetic benefits for offspring by selecting musicians able to create more complex music as sexual partners, and provide compelling support for Darwin's assertion 'that musical notes and rhythm were first acquired by the male or female progenitors of mankind for the sake of charming the opposite sex'.

Inference of trustworthiness from intuitive moral judgments.

PubMed

Everett, Jim A C; Pizarro, David A; Crockett, M J

2016-06-01

Moral judgments play a critical role in motivating and enforcing human cooperation, and research on the proximate mechanisms of moral judgments highlights the importance of intuitive, automatic processes in forming such judgments. Intuitive moral judgments often share characteristics with deontological theories in normative ethics, which argue that certain acts (such as killing) are absolutely wrong, regardless of their consequences. Why do moral intuitions typically follow deontological prescriptions, as opposed to those of other ethical theories? Here, we test a functional explanation for this phenomenon by investigating whether agents who express deontological moral judgments are more valued as social partners. Across 5 studies, we show that people who make characteristically deontological judgments are preferred as social partners, perceived as more moral and trustworthy, and are trusted more in economic games. These findings provide empirical support for a partner choice account of moral intuitions whereby typically deontological judgments confer an adaptive function by increasing a person's likelihood of being chosen as a cooperation partner. Therefore, deontological moral intuitions may represent an evolutionarily prescribed prior that was selected for through partner choice mechanisms. (PsycINFO Database Record (c) 2016 APA, all rights reserved).

What patients with pulmonary fibrosis and their partners think: a live, educative survey in the Netherlands and Germany

PubMed Central

van Manen, Mirjam J.G.; Kreuter, Michael; van den Blink, Bernt; Oltmanns, Ute; Palmowski, Karin; Brunnemer, Eva; Hummler, Simone; Tak, Nelleke C.; van den Toorn, Leon; Miedema, Jelle; Hoogsteden, Henk C.

2017-01-01

Pulmonary fibrosis greatly impacts patients and their partners. Unmet needs of patients are increasingly acknowledged; the needs of partners often remain unnoticed. Little is known about the best way to educate patients and partners. We investigated pulmonary fibrosis patients' and partners' perspectives and preferences in care, and the differences in these between the Netherlands and Germany. Additionally, we evaluated whether interactive interviewing could be a novel education method in this population. Patients and partners were interviewed during pulmonary fibrosis patient information meetings. In the Netherlands, voting boxes were used and results were projected directly. In Germany, questionnaires were used. In the Netherlands, 278 patients and partners participated; in Germany, 51. Many participants experienced anxiety. Almost all experienced misunderstanding, because people do not know what pulmonary fibrosis is. All expressed a need for information, psychological support and care for partners. Use of the interactive voting system was found to be pleasant (70%) and informative (94%). This study improves the knowledge of care needs of patients with pulmonary fibrosis and their partners. There were no major differences between the Netherlands and Germany. Interactive interviewing could be an attractive method to acquire insights into the needs and preferences of patients and partners, while providing them with information at the same time. PMID:28229083

[Status on sexual partners among men who have sex with men among college students in Qingdao, 2016].

PubMed

Zhang, X F; Lyu, C X; Zheng, J T; Dong, L; Jiang, Z X; Fu, J H

2017-12-10

Objective: To investigate the situation of sexual partners and related factors among men who have sex with men (MSM) in college students. Methods: Snowball sampling and Convenience sampling were both used to recruit MSM from colleges in Tsingtao in 2016. Questionnaire-based interviews were conducted to collect data of socio-demographic and situation of sexual partners. Sample Size was estimated based on cross-sectional study, and theoretical 267. SPSS 17.0 software was used for statistical analysis. Results: A total of 300 MSM, average aged 20.7, were analyzed. Both first sex partner and the last same-sex sexual partner were met instantly, with proportions as 58.7% (176/300) and 62.3% (187/300) respectively. Among all the MSM, 88.3% (265/300) preferred selecting men as sex partners and 42.7% (128/300) enjoyed finding sex partners in college, while 86.0% (258/300) preferred finding their sex partners through internet. Conclusions: Internet had been the major way of looking for sex partner among MSM in college students, the male sexual partner were met instantly. We should focus on men who have sex with men and their sexual health among college students to prevent and control HIV/AIDS.

What patients with pulmonary fibrosis and their partners think: a live, educative survey in the Netherlands and Germany.

PubMed

van Manen, Mirjam J G; Kreuter, Michael; van den Blink, Bernt; Oltmanns, Ute; Palmowski, Karin; Brunnemer, Eva; Hummler, Simone; Tak, Nelleke C; van den Toorn, Leon; Miedema, Jelle; Hoogsteden, Henk C; Wijsenbeek, Marlies S

2017-01-01

Pulmonary fibrosis greatly impacts patients and their partners. Unmet needs of patients are increasingly acknowledged; the needs of partners often remain unnoticed. Little is known about the best way to educate patients and partners. We investigated pulmonary fibrosis patients' and partners' perspectives and preferences in care, and the differences in these between the Netherlands and Germany. Additionally, we evaluated whether interactive interviewing could be a novel education method in this population. Patients and partners were interviewed during pulmonary fibrosis patient information meetings. In the Netherlands, voting boxes were used and results were projected directly. In Germany, questionnaires were used. In the Netherlands, 278 patients and partners participated; in Germany, 51. Many participants experienced anxiety. Almost all experienced misunderstanding, because people do not know what pulmonary fibrosis is. All expressed a need for information, psychological support and care for partners. Use of the interactive voting system was found to be pleasant (70%) and informative (94%). This study improves the knowledge of care needs of patients with pulmonary fibrosis and their partners. There were no major differences between the Netherlands and Germany. Interactive interviewing could be an attractive method to acquire insights into the needs and preferences of patients and partners, while providing them with information at the same time.

Perceived moral traits of others differentiate the neural activation that underlies inequity-aversion

PubMed Central

Nakatani, Hironori; Ogawa, Akitoshi; Suzuki, Chisato; Asamizuya, Takeshi; Ueno, Kenichi; Cheng, Kang; Okanoya, Kazuo

2017-01-01

We have a social preference to reduce inequity in the outcomes between oneself and others. Such a preference varies according to others. We performed functional magnetic resonance imaging during an economic game to investigate how the perceived moral traits of others modulate the neural activities that underlie inequity-aversion. The participants unilaterally allocated money to three partners (good, neutral, and bad). During presentation of the good and neutral partners, the anterior region of the rostral medial frontal cortex (arMFC) showed increased functional connectivity with the caudate head and the anterior insula, respectively. Following this, participants allocated more money to the good partner, and less to the bad partner, compared with the neutral partner. The caudate head and anterior insula showed greater activation during fair allocation to the good and unfair allocation to the neutral partners, respectively. However, these regions were silent during allocations to the bad partner. Therefore, the arMFC-caudate/insula circuit encompasses distinct neural processes that underlie inequity-aversion in monetary allocations that the different moral traits of others can modulate. PMID:28230155

Selective Cooperation in Early Childhood – How to Choose Models and Partners

PubMed Central

Hermes, Jonas; Behne, Tanya; Studte, Kristin; Zeyen, Anna-Maria; Gräfenhain, Maria; Rakoczy, Hannes

2016-01-01

Cooperation is essential for human society, and children engage in cooperation from early on. It is unclear, however, how children select their partners for cooperation. We know that children choose selectively whom to learn from (e.g. preferring reliable over unreliable models) on a rational basis. The present study investigated whether children (and adults) also choose their cooperative partners selectively and what model characteristics they regard as important for cooperative partners and for informants about novel words. Three- and four-year-old children (N = 64) and adults (N = 14) saw contrasting pairs of models differing either in physical strength or in accuracy (in labeling known objects). Participants then performed different tasks (cooperative problem solving and word learning) requiring the choice of a partner or informant. Both children and adults chose their cooperative partners selectively. Moreover they showed the same pattern of selective model choice, regarding a wide range of model characteristics as important for cooperation (preferring both the strong and the accurate model for a strength-requiring cooperation tasks), but only prior knowledge as important for word learning (preferring the knowledgeable but not the strong model for word learning tasks). Young children’s selective model choice thus reveals an early rational competence: They infer characteristics from past behavior and flexibly consider what characteristics are relevant for certain tasks. PMID:27505043

Partner preferences among survivors of betrayal trauma.

PubMed

Gobin, Robyn L

2012-01-01

Betrayal trauma theory suggests that social and cognitive development may be affected by early trauma such that individuals develop survival strategies, particularly dissociation and lack of betrayal awareness, that may place them at risk for further victimization. Several experiences of victimization in the context of relationships predicated on trust and dependence may contribute to the development of relational schema whereby abuse is perceived as normal. The current exploratory study investigates interpersonal trauma as an early experience that might impact the traits that are desired in potential romantic partners. Participants in the current study were asked to rate the desirability of several characteristics in potential romantic partners. Although loyalty was desirable to most participants regardless of their trauma history, those who reported experiences of high betrayal trauma rated loyalty less desirable than those who reported experiences of traumas that were low and medium in betrayal. Participants who reported experiences of revictimization (defined as the experience of trauma perpetrated by a close other during 2 different developmental periods) differed from participants who only reported 1 experience of high betrayal trauma in their self-reported desire for a romantic partner who possessed the traits of sincerity and trustworthiness. Preference for a partner who uses the tactic of verbal aggression was also associated with revictimization status. These preliminary findings suggest that victimization perpetrated by close others may affect partner preferences.

Personality and mate preferences: five factors in mate selection and marital satisfaction.

PubMed

Botwin, M D; Buss, D M; Shackelford, T K

1997-03-01

Although personality characteristics figure prominently in what people want in a mate, little is known about precisely which personality characteristics are most important, whether men and women differ in their personality preferences, whether individual women or men differ in what they want, and whether individuals actually get what they want. To explore these issues, two parallel studies were conducted, one using a sample of dating couples (N = 118) and one using a sample of married couples (N = 216). The five-factor model, operationalized in adjectival form, was used to assess personality characteristics via three data sources-self--report, partner report, and independent interviewer reports. Participants evaluated on a parallel 40-item instrument their preferences for the ideal personality characteristics of their mates. Results were consistent across both studies. Women expressed a greater preference than men for a wide array of socially desirable personality traits. Individuals differed in which characteristics they desired, preferring mates who were similar to themselves and actually obtaining mates who embodied what they desired. Finally, the personality characteristics of one's partner significantly predicted marital and sexual dissatisfaction, most notably when the partner was lower on Agreeableness, Emotional Stability, and Intellect-Openness than desired.

What men want: the role of reflective opposite-sex normative preferences in alcohol use among college women.

PubMed

Labrie, Joseph W; Cail, Jessica; Hummer, Justin F; Lac, Andrew; Neighbors, Clayton

2009-03-01

Misperceptions of peer drinking norms have been found to be strongly associated with individual drinking behavior, especially for proximal reference groups such as same-sex friends. Less studied are the effects of perceived preferences from the opposite sex on alcohol use; that is, the behaviors an individual believes the opposite sex prefers from them. Research suggests that these perceived "reflective" normative preferences may be particularly salient among college women, who may drink in pursuit of intimate relationships and positive attention from male peers. Heterosexual undergraduate students from two universities participated in this project. Females answered questions regarding the amount of alcohol they believe a typical male would like his female friends, dates, or romantic partners to drink. Males answered the same questions, stating their actual preferences. Results showed that females overestimate the amount of alcohol males want their female friends, dating partners, and sexual partners to drink, and that this misperception was associated with their drinking behavior, even after controlling for perceived same-sex norms. These results suggest that reflective normative feedback may offer a powerful new tool for female-targeted interventions. (PsycINFO Database Record (c) 2009 APA, all rights reserved).

Preference Versus Choice in Online Dating.

PubMed

Whyte, Stephen; Torgler, Benno

2017-03-01

This study explores factors that influence matches of online dating participants' stated preference for particular characteristics in a potential partner and compares these with the characteristics of the online daters actually contacted. The nature of online dating facilitates exploration of the differences between stated preference and actual choice by participants, as online daters willingly provide a range of demographics on their ideal partner. Using data from the Australian dating website RSVP, we analyze 219,013 contact decisions. We conduct a multivariate analysis using the number of matched variables between the participants' stated preference and the characteristics of the individuals contacted. We find that factors such as a person's age, their education level, and a more social personality all increase the number of factors they choose in a potential partner that match their original stated preference. Males (relative to females) appear to match fewer characteristics when contacting potential love interests. Conversely, age interaction effects demonstrate that males in their late 60's are increasingly more selective (than females) regarding who they contact. An understanding of how technology (the Internet) is impacting human mating patterns and the psychology behind the participants informs the wider social science of human behavior in large-scale decision settings.

The role of orgasm in the development and shaping of partner preferences.

PubMed

Coria-Avila, Genaro A; Herrera-Covarrubias, Deissy; Ismail, Nafissa; Pfaus, James G

2016-01-01

The effect of orgasm on the development and shaping of partner preferences may involve a catalysis of the neurochemical mechanisms of bonding. Therefore, understanding such process is relevant for neuroscience and psychology. A systematic review was carried out using the terms Orgasm, Sexual Reward, Partner Preference, Pair Bonding, Brain, Learning, Sex, Copulation. In humans, concentrations of arousing neurotransmitters and potential bonding neurotransmitters increase during orgasm in the cerebrospinal fluid and the bloodstream. Similarly, studies in animals indicate that those neurotransmitters (noradrenaline, oxytocin, prolactin) and others (e.g. dopamine, opioids, serotonin) modulate the appetitive and consummatory phases of sexual behavior and reward. This suggests a link between the experience of orgasm/sexual reward and the neurochemical mechanisms of pair bonding. Orgasm/reward functions as an unconditioned stimulus (UCS). Some areas in the nervous system function as UCS-detection centers, which become activated during orgasm. Partner-related cues function as conditioned stimuli (CS) and are processed in CS-detector centers. Throughout the article, we discuss how UCS- and CS-detection centers must interact to facilitate memory consolidation and produce recognition and motivation during future social encounters.

Preferred SH3 Domain Partners of ADAM Metalloproteases Include Shared and ADAM-Specific SH3 Interactions

PubMed Central

Kleino, Iivari; Järviluoma, Annika; Hepojoki, Jussi; Huovila, Ari Pekka; Saksela, Kalle

2015-01-01

A disintegrin and metalloproteinases (ADAMs) constitute a protein family essential for extracellular signaling and regulation of cell adhesion. Catalytic activity of ADAMs and their predicted potential for Src-homology 3 (SH3) domain binding show a strong correlation. Here we present a comprehensive characterization of SH3 binding capacity and preferences of the catalytically active ADAMs 8, 9, 10, 12, 15, 17, and 19. Our results revealed several novel interactions, and also confirmed many previously reported ones. Many of the identified SH3 interaction partners were shared by several ADAMs, whereas some were ADAM-specific. Most of the ADAM-interacting SH3 proteins were adapter proteins or kinases, typically associated with sorting and endocytosis. Novel SH3 interactions revealed in this study include TOCA1 and CIP4 as preferred partners of ADAM8, and RIMBP1 as a partner of ADAM19. Our results suggest that common as well as distinct mechanisms are involved in regulation and execution of ADAM signaling, and provide a useful framework for addressing the pathways that connect ADAMs to normal and aberrant cell behavior. PMID:25825872

Soldiers' Preferences Regarding Sperm Preservation, Posthumous Reproduction, and Attributes of a Potential "Posthumous Mother".

PubMed

Bokek-Cohen, Ya'arit; Ravitsky, Vardit

2017-01-01

We present study results regarding soldiers' willingness to conduct posthumous reproduction. Two hundred twelve Israeli soldiers filled in a questionnaire designed to examine their willingness to cryopreserve sperm and evaluate in which familial circumstances they would consent to posthumous reproduction. They ranked the desirability of 46 attributes of a potential mother and a life partner. Findings indicate a relatively high predisposition in favor of posthumous-assisted reproduction; the wishes of soldiers' parents had much more influence on soldiers' willingness to pursue this technology than those of a partner. Soldiers preferred "feminine" jobs for a potential mother that would allow her to dedicate herself to child-rearing. The desired traits of such a mother were rated similarly to partner preferences; however, significant differences were found in attributes that are most related to the potential mother's devotion to maternity. Interpretations of these findings are contextualized in relation to ethical and bereavement considerations.

A survey of the use of text messaging for communication with partners in the process of provider-led partner notification.

PubMed

Gilbart, Victoria Louise; Town, Katy; Lowndes, Catherine Mary

2015-03-01

Partner notification (PN) is important for sexually transmitted infection (STI) control. With developments in technology, such as text messaging, contacting partners is now easier. This study investigates the frequency and acceptability of text messaging in UK sexual health clinics for STI provider-led PN. A questionnaire was distributed to health advisers (HAs), cascaded by the Society of Sexual Health Advisers and posted on their website. 65 questionnaires were returned. Most HAs use telephone for the first and second provider-led PN attempt (61, 94% and 51, 78%, respectively) with text messaging as preferred second choice (19, 29% and 32, 49%, respectively). Overall, 56 clinics (86%) used text messaging at some stage, even if not the preferred option. 29 (52%) clinics had text messaging guidelines and 31 (55%) used messaging templates. Messages varied; 33 (59%) request partner make contact, 11 (20%) mention risk of infection, 9 (16%) name the infection and 20 (36%) use a combination of messages. Six (10%) had contact with their Caldicott Guardian about text messaging. No confidentiality concerns were reported and no complaints were reported from partners about receiving unsolicited text messages. Text messaging is widely used and is an important and acceptable tool for STI provider-led PN. It is the second preferred method for contacting partners after telephone for first and second provider-led PN attempts. A small number of clinics never use it. Message content varied; few named the infection. Concerns about confidentiality or negative impact for the partner were not reported. National guidance for the use of text messaging for provider-led PN is needed. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

'Knowledge is power': perceived needs and preferred services of male partners of women newly diagnosed with breast cancer.

PubMed

Cheng, Terry; Jackman, Maureen; McQuestion, Maurene; Fitch, Margaret

2014-12-01

The aim of this qualitative exploratory study was to assess the perceived needs and preferred services of male partners of women newly diagnosed with breast cancer. Twenty-seven male partners participated in semi-structured telephone interviews. Interviews were recorded and transcribed verbatim. An inductive analysis was used to identify the patterns, themes and categories from the data. A diagnosis of breast cancer and subsequent treatment significantly affect the male partners of women diagnosed with this illness, creating 'needs' that require coping responses. To help them support their wife and family, they relied on their internal resources and informal sources of support. Many participants suggested that the health care system provides information addressing their needs to facilitate their role of caring for their wife. The findings did not support the clinical assumption that men would be interested in a men's group focused on them and their needs. The diagnosis of breast cancer significantly affected the male partners, creating the need for support services including information on a variety of topics. An information binder tailored specifically to their needs was the preferred method of facilitating their husbandly role and coping. Findings did not support the clinical assumption that men would be interested in a men's group focused on them and their needs.

Sex differences in attraction to familiar and unfamiliar opposite-sex faces: men prefer novelty and women prefer familiarity.

PubMed

Little, Anthony C; DeBruine, Lisa M; Jones, Benedict C

2014-07-01

Familiarity is attractive in many types of stimuli and exposure generally increases feelings of liking. However, men desire a greater number of sexual partners than women, suggesting a preference for novelty. We examined sex differences in preferences for familiarity. In Study 1 (N = 83 women, 63 men), we exposed individuals to faces twice and found that faces were judged as more attractive on the second rating, reflecting attraction to familiar faces, with the exception that men's ratings of female faces decreased on the second rating, demonstrating attraction to novelty. In Studies 2 (N = 42 women, 28 men) and 3 (N = 51 women, 25 men), exposure particularly decreased men's ratings of women's attractiveness for short-term relationships and their sexiness. In Study 4 (N = 64 women, 50 men), women's attraction to faces was positively related to self-rated similarity to their current partner's face, while the effect was significantly weaker for men. Potentially, men's attraction to novelty may reflect an adaptation promoting the acquisition of a high number of sexual partners.

Implicit attitudes to sexual partner concurrency vary by sexual orientation but not by gender-A cross sectional study of Belgian students.

PubMed

Kenyon, Chris R; Wolfs, Kenny; Osbak, Kara; van Lankveld, Jacques; Van Hal, Guido

2018-01-01

High rates of sexual partner concurrency have been shown to facilitate the spread of various sexually transmitted infections. Assessments of explicit attitudes to concurrency have however found little difference between populations. Implicit attitudes to concurrency may vary between populations and play a role in generating differences in the prevalence of concurrency. We developed a concurrency implicit associations test (C-IAT) to assess if implicit attitudes towards concurrency may vary between individuals and populations and what the correlates of these variations are. A sample of 869 Belgian students (mean age 23, SD 5.1) completed an online version of the C-IAT together with a questionnaire concerning sexual behavior and explicit attitudes to concurrency. The study participants C-IATs demonstrated a strong preference for monogamy (-0.78, SD = 0.41). 93.2% of participants had a pro-monogamy C-IAT. There was no difference in this implicit preference for monogamy between heterosexual men and women. Men who have sex with men and women who have sex with women were more likely to exhibit implicit but not explicit preferences for concurrency compared to heterosexual men and women. Correlates of the C-IAT varied between men and women.

The oxytocin system promotes resilience to the effects of neonatal isolation on adult social attachment in female prairie voles.

PubMed

Barrett, C E; Arambula, S E; Young, L J

2015-07-21

Genes and social experiences interact to create variation in social behavior and vulnerability to develop disorders of the social domain. Socially monogamous prairie voles display remarkable diversity in neuropeptide receptor systems and social behavior. Here, we examine the interaction of early-life adversity and brain oxytocin receptor (OTR) density on adult social attachment in female prairie voles. First, pups were isolated for 3 h per day, or unmanipulated, from postnatal day 1-14. Adult subjects were tested on the partner preference (PP) test to assess social attachment and OTR density in the brain was quantified. Neonatal social isolation impaired female PP formation, without affecting OTR density. Accumbal OTR density was, however, positively correlated with the percent of time spent huddling with the partner in neonatally isolated females. Females with high accumbal OTR binding were resilient to neonatal isolation. These results are consistent with the hypothesis that parental nurturing shapes neural systems underlying social relationships by enhancing striatal OTR signaling. Thus, we next determined whether early touch, mimicking parental licking and grooming, stimulates hypothalamic OT neuron activity. Tactile stimulation induced immediate-early gene activity in OT neurons in neonates. Finally, we investigated whether pharmacologically potentiating OT release using a melanocortin 3/4 agonist, melanotan-II (10 mg kg(-1) subcutaneously), would mitigate the social isolation-induced impairments in attachment behavior. Neonatal melanotan-II administration buffered against the effects of early isolation on partner preference formation. Thus, variation in accumbal OTR density and early OT release induced by parental nurturing may moderate susceptibility to early adverse experiences, including neglect.

Community preferences for health states associated with intimate partner violence.

PubMed

Wittenberg, Eve; Lichter, Erika L; Ganz, Michael L; McCloskey, Laura A

2006-08-01

One in 4 women is affected by intimate partner violence in her lifetime. This article reports on a cross-sectional survey to estimate community preferences for health states resulting from intimate partner violence. A secondary analysis was conducted of data from a convenience sample of 93 abused and 138 nonabused women (231 total) recruited for in-person interviews from hospital outpatient department waiting rooms in metropolitan Boston, Massachusetts. SF-12 data were converted to utilities to describe community-perspective preferences for health states associated with intimate partner violence. Linear regression analysis was used to explore the association between violence and utility while controlling for other health and demographic factors. Median utility for intimate partner violence was between 0.58 and 0.63 on a scale of 0 (equivalent to death) to 1.0 (equivalent to optimal health), with a range from 0.64 to 0.66 for less severe violence to 0.53 to 0.62 for more severe violence. The data do not reveal whether violence itself is responsible for lower utility or whether a constellation of factors contributes to disutility experienced by women victims of abuse. The utility of health states experienced by women exposed to intimate partner violence is substantially diminished compared with optimal health and even other health conditions. These values quantify the substantial negative health impact of the experience of intimate partner violence in terms that allow comparison across diseases. They can be used in cost-effectiveness analyses to identify the benefits and potential returns from resources allocated to violence prevention and intervention efforts.

Similarity in Chronotype and Preferred Time for Sex and Its Role in Relationship Quality and Sexual Satisfaction

PubMed Central

Jocz, Paulina; Stolarski, Maciej; Jankowski, Konrad S.

2018-01-01

Recently, the issue of diurnal preferences has been increasingly studied within the context of romantic relationships and sexual functioning. In the present paper we apply a dyadic design to investigate the role of romantic partners' diurnal preferences in determining a variety of relationship outcomes. A sample of 91 heterosexual couples completed a set of questionnaires measuring relationship satisfaction, sexual satisfaction, and morningness-eveningness, and answered questions regarding their actual and preferred time for sexual activity. Conducted analyses revealed that similarity in chronotype between partners and female morningness fostered relationship satisfaction in females, but not in males. Furthermore, morningness-eveningness was associated with preferred time for sex in males, but not in females, who in principle preferred evening hours. Although actual time for sex was up to the female preference, sexual satisfaction in both genders was associated with lower discrepancy in their preferred time for sex and greater frequency of intercourse. In sum, these results indicate that chronotype and time for sex are important factors affecting sexual and relationships satisfaction in heterosexual couples. PMID:29670559

Why do some women prefer submissive men? Hierarchically disparate couples reach higher reproductive success in European urban humans.

PubMed

Jozifkova, Eva; Konvicka, Martin; Flegr, Jaroslav

2014-01-01

Equality between partners is considering a feature of the functional partnerships in westernized societies. However, the evolutionary consequences of how in-pair hierarchy influences reproduction are less known. Attraction of some high-ranking women towards low-ranking men represents a puzzle. Young urban adults (120 men, 171 women) filled out a questionnaire focused on their sexual preference for higher or lower ranking partners, their future in-pair hierarchy, and hierarchy between their parents. Human pairs with a hierarchic disparity between partners conceive more offspring than pairs of equally-ranking individuals, who, in turn, conceive more offspring than pairs of two dominating partners. Importantly, the higher reproductive success of hierarchically disparate pairs holds, regardless of which sex, male or female, is the dominant one. In addition, the subjects preferring hierarchy disparity in partnerships were with greater probability sexually aroused by such disparity, suggesting that both the partnership preference and the triggers of sexual arousal may reflect a mating strategy. These results challenge the frequently held belief in within-pair equality as a trademark of functional partnerships. It rather appears that existence of some disparity improves within-pair cohesion, facilitating both cooperation between partners and improving the pairs' ability to face societal challenges. The parallel existence of submissivity-dominance hierarchies within human sexes allows for the parallel existence of alternative reproductive strategies, and may form a background for the diversity of mating systems observed in human societies. Arousal of overemphasized dominance/submissiveness may explain sadomasochistic sex, still little understood from the evolutionary psychology point of view.

Young women's contraceptive microbicide preferences: associations with contraceptive behavior and sexual relationship characteristics.

PubMed

Best, Candace; Tanner, Amanda E; Hensel, Devon J; Fortenberry, J Dennis; Zimet, Gregory D

2014-03-01

In time, microbicides may provide women with dual prevention against pregnancy and STDs. Although several microbicide dimensions have been evaluated, little is known about women's preferences for contraceptive microbicides and correlates of these preferences. Acceptability of a hypothetical contraceptive microbicide cream or jelly was examined among a -clinic-based sample of 266 women in Indianapolis from 2004 (when participants were aged 14-22) to 2008. Group conjoint analyses and individual conjoint analyses were used to compare preferences with respect to four microbicide -dimensions: contraceptive ability, efficacy in relation to condoms, timing of use and texture. Pearson's product moment correlations were used to examine the relationship between preferences for a contraceptive microbicide and selected characteristics of the women. Overall, the top-rated microbicide dimensions were efficacy in relation to that of condoms and contraceptive ability (importance scores, 40.0 and 35.4 out of 100.0, respectively). When all dimension levels were compared, contraceptive ability was the most strongly preferred (part-worth utility score, 8.9), and lower efficacy than that of -condoms was the least strongly preferred (-11.9). Preference for contraceptive microbicides was positively -associated with current contraceptive use, sexual agency, partner communication, commitment to avoiding pregnancy and -perceived partner agreement about avoiding pregnancy (coefficients, 0.07-0.18). It was negatively associated with current or past nonuse of contraceptives, seeking pregnancy and perceived partner agreement about seeking -pregnancy (-0.08 to -0.14). Microbicides with dual prevention properties may be attractive to young women. Microbicide development and subsequent clinical trials should incorporate contraceptive microbicides. Copyright © 2013 by the Guttmacher Institute.

Endorsement of Social and Personal Values Predicts the Desirability of Men and Women as Long-Term Partners.

PubMed

Lopes, Guilherme S; Barbaro, Nicole; Sela, Yael; Jeffery, Austin J; Pham, Michael N; Shackelford, Todd K; Zeigler-Hill, Virgil

2017-01-01

A prospective romantic partner's desirability as a long-term partner may be affected by the values that he or she endorses. However, few studies have examined the effects of "values" on a person's desirability as a long-term partner. We hypothesized that individuals who endorse social values (vs. personal values) will be perceived as more desirable long-term partners (Hypothesis 1) and that the endorsement of social values will be especially desirable in a male (vs. female) long-term partner (Hypothesis 2). The current study employed a 2 (sex of prospective partner: male vs. female) × 2 (values of prospective partner: personal vs. social) × 2 (physical attractiveness of prospective partner: unattractive vs. highly attractive) mixed-model design. Participants were 339 undergraduates (174 men, 165 women), with ages varying between 18 and 33 years ( M = 19.9, SD = 3.6), and mostly in a romantic relationship (53.7%). Participants reported interest in a long-term relationship with prospective partners depicted in four scenarios (within subjects), each varying along the dimensions of values (personal vs. social) and physical attractiveness (unattractive vs. highly attractive). Individuals endorsing personal values (vs. social values) and men (vs. women) endorsing personal values were rated as less desirable as long-term partners. The current research adds to the partner preferences literature by demonstrating that an individual's ascribed values influence others' perceptions of desirability as a long-term partner and that these effects are consistently sex differentiated, as predicted by an evolutionary perspective on romantic partner preferences.

Social preferences based on sexual attractiveness: a female strategy to reduce male sexual attention.

PubMed

Brask, Josefine B; Croft, Darren P; Thompson, Katharine; Dabelsteen, Torben; Darden, Safi K

2012-05-07

Male sexual harassment of females is common across sexually reproducing species and can result in fitness costs to females. We hypothesized that females can reduce unwanted male attention by constructing a social niche where their female associates are more sexually attractive than themselves, thus influencing the decision-making of males to their advantage. We tested this hypothesis in the Trinidadian guppy (Poecilia reticulata), a species with high levels of male sexual harassment. First, we confirmed that non-receptive females were harassed less when they were paired with a more sexually attractive (receptive) female than with another non-receptive female. We then found that, indeed, females exploit this as a strategy to reduce sexual harassment; non-receptive females actively preferred to associate with receptive over non-receptive females. Importantly, when given access only to chemosensory cues, non-receptive females still showed this preference, suggesting that they use information from chemical cues to assess the sexual attractiveness of potential female partners. Receptive females in contrast showed no such preferences. Our results demonstrate that females can decrease male harassment by associating with females that are more sexually attractive than themselves and that they perform active partner choices based on this relative attractiveness. We propose that this strategy is likely to represent an important pathway by which females can construct social niches that influence the decision-making of others to their advantage; in this case, to reduce the sexual harassment they experience.

Free mate choice enhances conservation breeding in the endangered giant panda

PubMed Central

Martin-Wintle, Meghan S.; Shepherdson, David; Zhang, Guiquan; Zhang, Hemin; Li, Desheng; Zhou, Xiaoping; Li, Rengui; Swaisgood, Ronald R.

2015-01-01

Conservation breeding programmes have become an increasingly important tool to save endangered species, yet despite the allocation of significant resources, efforts to create self-sustaining populations have met with limited success. The iconic giant panda (Ailuropoda melanoleuca) embodies the struggles associated with ex situ species conservation. Here we show that behavioural mate preferences in giant pandas predict reproductive outcomes. Giant pandas paired with preferred partners have significantly higher copulation and birth rates. Reproductive rates increase further when both partners show mutual preference for one another. If managers were to incorporate mate preferences more fully into breeding management, the production of giant panda offspring for China's reintroduction programme might be greatly expedited. When extended to the increasing numbers of species dependent on ex situ conservation breeding to avoid extinction, our findings highlight that mate preference and other aspects of informed behavioural management could make the difference between success and failure of these programmes. PMID:26670381

Free mate choice enhances conservation breeding in the endangered giant panda.

PubMed

Martin-Wintle, Meghan S; Shepherdson, David; Zhang, Guiquan; Zhang, Hemin; Li, Desheng; Zhou, Xiaoping; Li, Rengui; Swaisgood, Ronald R

2015-12-15

Conservation breeding programmes have become an increasingly important tool to save endangered species, yet despite the allocation of significant resources, efforts to create self-sustaining populations have met with limited success. The iconic giant panda (Ailuropoda melanoleuca) embodies the struggles associated with ex situ species conservation. Here we show that behavioural mate preferences in giant pandas predict reproductive outcomes. Giant pandas paired with preferred partners have significantly higher copulation and birth rates. Reproductive rates increase further when both partners show mutual preference for one another. If managers were to incorporate mate preferences more fully into breeding management, the production of giant panda offspring for China's reintroduction programme might be greatly expedited. When extended to the increasing numbers of species dependent on ex situ conservation breeding to avoid extinction, our findings highlight that mate preference and other aspects of informed behavioural management could make the difference between success and failure of these programmes.

Police Attitudes toward Policing Partner Violence against Women: Do They Correspond to Different Psychosocial Profiles?

ERIC Educational Resources Information Center

Gracia, Enrique; Garcia, Fernando; Lila, Marisol

2011-01-01

This study analyzed whether police attitudes toward policing partner violence against women corresponded with different psychosocial profiles. Two attitudes toward policing partner violence were considered--one reflecting a general preference for a conditional law enforcement (depending on the willingness of the victim to press charges against the…

The Stability and Consequences of Young Children's Same-Sex Peer Interactions.

ERIC Educational Resources Information Center

Martin, Carol Lynn; Fabes, Richard A.

2001-01-01

Examined whether preschool children's play-partner choices were stable over time and how they influenced behavior. Found that partner preferences were highly sex differentiated and stable over time. Identified two types of consequences of partner choice: a binary effect that influenced differences between the sexes and a social dosage effect that…

What College Women Want in a Marriage Partner

ERIC Educational Resources Information Center

O'Reilly, Sarah; Knox, David; Zusman, Marty

2009-01-01

One-hundred-and-ninety seven undergraduates at a large southeastern university completed a confidential anonymous 22-item questionnaire designed to assess the qualities college women want in their prospective marital partners. The data revealed that women (when compared to what men want in a partner) were significantly more likely to prefer men…

Women veterans' preferences for intimate partner violence screening and response procedures within the Veterans Health Administration.

PubMed

Iverson, Katherine M; Huang, Kristin; Wells, Stephanie Y; Wright, Jason D; Gerber, Megan R; Wiltsey-Stirman, Shannon

2014-08-01

Intimate partner violence (IPV) is a significant health issue faced by women veterans, but little is known about their preferences for IPV-related care. Five focus groups were conducted with 24 women Veterans Health Administration (VHA) patients with and without a lifetime history of IPV to understand their attitudes and preferences regarding IPV screening and responses within VHA. Women veterans wanted disclosure options, follow-up support, transparency in documentation, and VHA and community resources. They supported routine screening for IPV and articulated preferences for procedural aspects of screening. Women suggested that these procedures could be provided most effectively when delivered with sensitivity and connectedness. Findings can inform the development of IPV screening and response programs within VHA and other healthcare settings. © 2014 Wiley Periodicals, Inc.

The Effects of Social Context and Acute Stress on Decision Making Under Uncertainty.

PubMed

FeldmanHall, Oriel; Raio, Candace M; Kubota, Jennifer T; Seiler, Morgan G; Phelps, Elizabeth A

2015-12-01

Uncertainty preferences are typically studied in neutral, nonsocial contexts. This approach, however, fails to capture the dynamic factors that influence choices under uncertainty in the real world. Our goal was twofold: to test whether uncertainty valuation is similar across social and nonsocial contexts, and to investigate the effects of acute stress on uncertainty preferences. Subjects completed matched gambling and trust games following either a control or a stress manipulation. Those who were not under stress exhibited no differences between the amount of money gambled and the amount of money entrusted to partners. In comparison, stressed subjects gambled more money but entrusted less money to partners. We further found that irrespective of stress, subjects were highly attuned to irrelevant feedback in the nonsocial, gambling context, believing that every loss led to a greater chance of winning (the gamblers' fallacy). However, when deciding to trust a stranger, control subjects behaved rationally, treating each new interaction as independent. Stress compromised this adaptive behavior, increasing sensitivity to irrelevant social feedback. © The Author(s) 2015.

HIV-Associated Histories, Perceptions, and Practices Among Low-Income African American Women: Does Rural Residence Matter?

PubMed Central

Crosby, Richard A.; Yarber, William L.; DiClemente, Ralph J.; Wingood, Gina M.; Meyerson, Beth

2002-01-01

Objectives. This study compared HIV-associated sexual health history, risk perceptions, and sexual risk behaviors of low-income rural and nonrural African American women. Methods. A cross-sectional statewide survey of African American women (n = 571) attending federally funded Special Supplemental Nutrition Program for Women, Infants, and Children clinics was conducted. Results. Adjusted analyses indicated that rural women were more likely to report not being counseled about HIV during pregnancy (P = .001), that a sex partner had not been tested for HIV (P = .005), no preferred method of prevention because they did not worry about sexually transmitted diseases (P = .02), not using condoms (P = .009), and a belief that their partner was HIV negative, despite lack of testing (P = .04). Conclusions. This study provided initial evidence that low-income rural African American women are an important population for HIV prevention programs. PMID:11919067

The Effect of Partner Reauditorization on Undergraduates' Attitudes Toward a Peer Who Communicates With Augmentative and Alternative Communication.

PubMed

Hyppa-Martin, Jolene; Reichle, Joe

2018-03-28

This study compared college students' attitudes toward a peer who used a nonelectronic augmentative and alternative communication (AAC) system with and without a partner reauditorization strategy and also examined the effect of reauditorization on reported (a) ease of understanding the peer who used AAC, (b) willingness to engage in interactions with the peer who used AAC, and (c) preferences regarding AAC systems. Sixty-four participants completed surveys after viewing each of 2 counterbalanced conditions involving a video of a peer who communicated using AAC. Mean survey ratings were compared between conditions. Participants reported (a) more positive attitudes toward, (b) a greater ease in understanding, and (c) an increased willingness to interact with the peer who used nonelectronic AAC with partner reauditorization. Participants indicated that reauditorization contributed positively to the observed conversation. Reported preferences for nonelectronic AAC systems did not vary as a function of reauditorization, and most participants reported a preference for an electronic speech-generating device when compared with a nonelectronic system. Partner reauditorization may play a role in improving attitudes that individuals hold about peers who use nonelectronic AAC and may contribute to ease of understanding the aided message and increased likelihood of peer interactions.

The role of orgasm in the development and shaping of partner preferences

PubMed Central

Coria-Avila, Genaro A.; Herrera-Covarrubias, Deissy; Ismail, Nafissa; Pfaus, James G.

2016-01-01

Background The effect of orgasm on the development and shaping of partner preferences may involve a catalysis of the neurochemical mechanisms of bonding. Therefore, understanding such process is relevant for neuroscience and psychology. Methods A systematic review was carried out using the terms Orgasm, Sexual Reward, Partner Preference, Pair Bonding, Brain, Learning, Sex, Copulation. Results In humans, concentrations of arousing neurotransmitters and potential bonding neurotransmitters increase during orgasm in the cerebrospinal fluid and the bloodstream. Similarly, studies in animals indicate that those neurotransmitters (noradrenaline, oxytocin, prolactin) and others (e.g. dopamine, opioids, serotonin) modulate the appetitive and consummatory phases of sexual behavior and reward. This suggests a link between the experience of orgasm/sexual reward and the neurochemical mechanisms of pair bonding. Orgasm/reward functions as an unconditioned stimulus (UCS). Some areas in the nervous system function as UCS-detection centers, which become activated during orgasm. Partner-related cues function as conditioned stimuli (CS) and are processed in CS-detector centers. Conclusions Throughout the article, we discuss how UCS- and CS-detection centers must interact to facilitate memory consolidation and produce recognition and motivation during future social encounters. PMID:27799080

Factors associated with HIV testing among male motorbike taxi drivers in urban Vietnam.

PubMed

Huy, Nguyen Van; Khuyen, Le Thi; Ha, Pham Nguyen

2015-01-01

Using the Attitude-Skills-Knowledge (ASK) model, this study examined the prevalence of, and factors associated with, human immunodeficiency virus (HIV) testing among male motorbike taxi drivers (MMTDs). In a cross-sectional design, using quantitative approaches, 291 MMTDs were recruited from 135 sites across 13 districts in Hanoi, Vietnam, for a face-to-face interview. Applying the ASK model modified as a central theory, logistic regression was used to identify determinants of HIV testing. Although many MMTDs engaged in multiple risk behaviours for HIV, only 20.6% had been tested for HIV during the past 12 months. The tested model included one factor of the ASK model, HIV prevention knowledge (adjusted odds ratio [AOR] = 4.76; 95% confidence interval [CI] = 2.12-10.7) and five additional factors: being married (AOR = 3.13; 95% CI = 1.25-4.78), preferring sex with men or with both men and women (AOR = 8.72; 95% CI = 1.48-51.5), having lower number of lifetime sex partners (AOR = 0.66; 95% CI = 0.49-0.88), higher number of past year sex partners (AOR = 2.97: 95% CI = 1.21-7.31) and discussing condom use when having sex with partners (AOR = 0.08; 95% CI = 0.01-7.31). This modified ASK model provided better fit than the ASK model, as it explained more variance in HIV testing (47 vs. 29.8%). Recognising factors associated with HIV testing among MMTDs enables us to create suitable public health intervention strategies.

An Investigation on Social Representations: Inanimate Agent Can Mislead Dogs (Canis familiaris) in a Food Choice Task.

PubMed

Abdai, Judit; Gergely, Anna; Petró, Eszter; Topál, József; Miklósi, Ádám

2015-01-01

The nature of mental representation of others plays a crucial role in social interactions. Dogs present an ideal model species for the investigation of such mental representations because they develop social ties with both conspecifics and heterospecifics. Former studies found that dogs' preference for larger food quantity could be reversed by humans who indicate the smaller quantity. The question is whether this social bias is restricted to human partners. We suggest that after a short positive social experience, an unfamiliar moving inanimate agent (UMO) can also change dogs' choice between two food quantities. We tested four groups of dogs with different partners: In the (1) Helper UMO and (2) Helper UMO Control groups the partner was an interactive remote control car that helped the dog to obtain an otherwise unreachable food. In the (3) Non-helper UMO and (4) Human partner groups dogs had restricted interaction with the remote control car and the unfamiliar human partners. In the Human partner, Helper UMO and Helper UMO Control groups the partners were able to revert dogs' choice for the small amount by indicating the small one, but the Non-helper UMO was not. We suggest that dogs are able to generalize their wide range of experiences with humans to another type of agent as well, based on the recognition of similarities in simple behavioural patterns.

An Investigation on Social Representations: Inanimate Agent Can Mislead Dogs (Canis familiaris) in a Food Choice Task

PubMed Central

Abdai, Judit; Gergely, Anna; Petró, Eszter; Topál, József; Miklósi, Ádám

2015-01-01

The nature of mental representation of others plays a crucial role in social interactions. Dogs present an ideal model species for the investigation of such mental representations because they develop social ties with both conspecifics and heterospecifics. Former studies found that dogs’ preference for larger food quantity could be reversed by humans who indicate the smaller quantity. The question is whether this social bias is restricted to human partners. We suggest that after a short positive social experience, an unfamiliar moving inanimate agent (UMO) can also change dogs’ choice between two food quantities. We tested four groups of dogs with different partners: In the (1) Helper UMO and (2) Helper UMO Control groups the partner was an interactive remote control car that helped the dog to obtain an otherwise unreachable food. In the (3) Non-helper UMO and (4) Human partner groups dogs had restricted interaction with the remote control car and the unfamiliar human partners. In the Human partner, Helper UMO and Helper UMO Control groups the partners were able to revert dogs’ choice for the small amount by indicating the small one, but the Non-helper UMO was not. We suggest that dogs are able to generalize their wide range of experiences with humans to another type of agent as well, based on the recognition of similarities in simple behavioural patterns. PMID:26241747

Dating Preferences in Sex Stereotypic Men.

ERIC Educational Resources Information Center

Smith, Christine A.

Although research suggest a general preference by men for attractive partners, attractiveness may be more important for some men than for others. This study was conducted to investigate the role of men's sex stereotypic attitudes on their dating preferences. It was hypothesized that the level of sex stereotyping would correlate with the level…

Baby FaceTime: can toddlers learn from online video chat?

PubMed

Myers, Lauren J; LeWitt, Rachel B; Gallo, Renee E; Maselli, Nicole M

2017-07-01

There is abundant evidence for the 'video deficit': children under 2 years old learn better in person than from video. We evaluated whether these findings applied to video chat by testing whether children aged 12-25 months could form relationships with and learn from on-screen partners. We manipulated social contingency: children experienced either real-time FaceTime conversations or pre-recorded Videos as the partner taught novel words, actions and patterns. Children were attentive and responsive in both conditions, but only children in the FaceTime group responded to the partner in a temporally synced manner. After one week, children in the FaceTime condition (but not the Video condition) preferred and recognized their Partner, learned more novel patterns, and the oldest children learned more novel words. Results extend previous studies to demonstrate that children under 2 years show social and cognitive learning from video chat because it retains social contingency. A video abstract of this article can be viewed at: https://youtu.be/rTXaAYd5adA. © 2016 John Wiley & Sons Ltd.

Needs and Preferences for the Prevention of Intimate Partner Violence among Hispanics: A Community’s Perspective

PubMed Central

Gonzalez-Guarda, R.M.; Cummings, A.M.; Becerra, M.; Fernandez, M.C.; Mesa, I.

2013-01-01

Research suggest that Hispanics in the U.S. are disproportionately affected by the consequences of intimate partner violence. Nevertheless, few intimate partner violence prevention interventions have been developed to address the unique needs and preferences of this population. The Partnership for Domestic Violence Prevention is a community-based participatory research project that assessed the needs and preferences for prevention programs for Hispanics in Miami-Dade County. Nine focus groups with domestic violence service providers, victims and general community members were conducted (N= 76). Four major themes emerged from the focus groups. These included immigrants and teens as the highest priority groups to target in prevention efforts, culture as a double-edged sword, the system that helps and hurts the victim, and the need for wide-scale prevention programs that would reach Hispanics systematically. The results from this study have important implications for the development of intimate violence prevention interventions targeting Hispanics in the U.S. PMID:23843106

Needs and preferences for the prevention of intimate partner violence among Hispanics: a community's perspective.

PubMed

Gonzalez-Guarda, R M; Cummings, A M; Becerra, M; Fernandez, M C; Mesa, I

2013-08-01

Research suggest that Hispanics in the U.S. are disproportionately affected by the consequences of intimate partner violence. Nevertheless, few intimate partner violence prevention interventions have been developed to address the unique needs and preferences of this population. The Partnership for Domestic Violence Prevention is a community-based participatory research project that assessed the needs and preferences for prevention programs for Hispanics in Miami-Dade County. Nine focus groups with domestic violence service providers, victims and general community members were conducted (N = 76). Four major themes emerged from the focus groups. These included immigrants and teens as the highest priority groups to target in prevention efforts, culture as a double-edged sword, the system that helps and hurts the victim, and the need for wide-scale prevention programs that would reach Hispanics systematically. The results from this study have important implications for the development of intimate violence prevention interventions targeting Hispanics in the U.S.

Manipulation of Karyotype in Caenorhabditis elegans Reveals Multiple Inputs Driving Pairwise Chromosome Synapsis During Meiosis

PubMed Central

Roelens, Baptiste; Schvarzstein, Mara; Villeneuve, Anne M.

2015-01-01

Meiotic chromosome segregation requires pairwise association between homologs, stabilized by the synaptonemal complex (SC). Here, we investigate factors contributing to pairwise synapsis by investigating meiosis in polyploid worms. We devised a strategy, based on transient inhibition of cohesin function, to generate polyploid derivatives of virtually any Caenorhabditis elegans strain. We exploited this strategy to investigate the contribution of recombination to pairwise synapsis in tetraploid and triploid worms. In otherwise wild-type polyploids, chromosomes first sort into homolog groups, then multipartner interactions mature into exclusive pairwise associations. Pairwise synapsis associations still form in recombination-deficient tetraploids, confirming a propensity for synapsis to occur in a strictly pairwise manner. However, the transition from multipartner to pairwise association was perturbed in recombination-deficient triploids, implying a role for recombination in promoting this transition when three partners compete for synapsis. To evaluate the basis of synapsis partner preference, we generated polyploid worms heterozygous for normal sequence and rearranged chromosomes sharing the same pairing center (PC). Tetraploid worms had no detectable preference for identical partners, indicating that PC-adjacent homology drives partner choice in this context. In contrast, triploid worms exhibited a clear preference for identical partners, indicating that homology outside the PC region can influence partner choice. Together, our findings, suggest a two-phase model for C. elegans synapsis: an early phase, in which initial synapsis interactions are driven primarily by recombination-independent assessment of homology near PCs and by a propensity for pairwise SC assembly, and a later phase in which mature synaptic interactions are promoted by recombination. PMID:26500263

The oxytocin system promotes resilience to the effects of neonatal isolation on adult social attachment in female prairie voles

PubMed Central

Barrett, C E; Arambula, S E; Young, L J

2015-01-01

Genes and social experiences interact to create variation in social behavior and vulnerability to develop disorders of the social domain. Socially monogamous prairie voles display remarkable diversity in neuropeptide receptor systems and social behavior. Here, we examine the interaction of early-life adversity and brain oxytocin receptor (OTR) density on adult social attachment in female prairie voles. First, pups were isolated for 3 h per day, or unmanipulated, from postnatal day 1–14. Adult subjects were tested on the partner preference (PP) test to assess social attachment and OTR density in the brain was quantified. Neonatal social isolation impaired female PP formation, without affecting OTR density. Accumbal OTR density was, however, positively correlated with the percent of time spent huddling with the partner in neonatally isolated females. Females with high accumbal OTR binding were resilient to neonatal isolation. These results are consistent with the hypothesis that parental nurturing shapes neural systems underlying social relationships by enhancing striatal OTR signaling. Thus, we next determined whether early touch, mimicking parental licking and grooming, stimulates hypothalamic OT neuron activity. Tactile stimulation induced immediate-early gene activity in OT neurons in neonates. Finally, we investigated whether pharmacologically potentiating OT release using a melanocortin 3/4 agonist, melanotan-II (10 mg kg−1 subcutaneously), would mitigate the social isolation-induced impairments in attachment behavior. Neonatal melanotan-II administration buffered against the effects of early isolation on partner preference formation. Thus, variation in accumbal OTR density and early OT release induced by parental nurturing may moderate susceptibility to early adverse experiences, including neglect. PMID:26196439

Dating-Partner Preferences among a Group of Inner-City African-American High School Students.

ERIC Educational Resources Information Center

Smith, Sherry P.

1996-01-01

Examines a set of characteristics that African American inner-city high school students may or may not value in a dating partner. A total of 80 students indicated how important they perceived certain qualities to be in a person they would like to date. The results are in contrast to the previous literature regarding dating-partner preferences…

The importance of genetic parenthood for infertile men and women.

PubMed

Hendriks, S; Peeraer, K; Bos, H; Repping, S; Dancet, E A F

2017-10-01

Do men and women beginning to attend a fertility clinic prefer genetic over non-genetic parenthood? Nearly, all infertile men and women prefer genetic parenthood. Clinicians assume that all infertile couples prefer genetic parenthood over non-genetic parenthood and, therefore, consider treatments with donor gametes an option of last resort. Previous studies of the desire for parenthood identified 30 motivations for genetic parenthood, and 51 motivations for which having a genetically related child is not strictly necessary but might be deemed required. The exact strength of the preference of infertile men and women for genetic parenthood remains unclear, as does the importance of the various motivations. A questionnaire was developed based on a literature review. It was assessed by professionals and pilot tested among patients. The coded paper-pencil questionnaire was disseminated among both partners of 201 heterosexual infertile couples after their first consultation at one of two Belgian fertility clinics between October 2015 and May 2016. The survey addressed: (i) the preference for genetic parenthood for themselves and for their partner, (ii) the importance of 30 motivations for genetic parenthood and (iii) the importance of 51 other motivations for parenthood and whether these motivations require being the genetic parent of their child to be fulfilled. To simplify presentation of the results, all 81 motivations were grouped into reliable categories of motivations using psychometric analyses. The survey was completed by 104 women and 91 men (response rate: 49%). Almost all respondents (98%) favored genetic over non-genetic parenthood for both their partner and themselves. One-third of the respondents stated they only wanted to parent their own genetically related child. Achieving genetic parenthood for their partner was considered significantly more important than achieving genetic parenthood for themselves. Within couples, men had a stronger preference for genetic parenthood (P = 0.004), but this was not significant after correction for educational level, which was significantly associated with the preference of both men and women. The 30 motivations for becoming a genetic parent clustered into 11 categories of which 'to experience a natural process' was deemed most important. The 51 motivations for becoming a parent for which having a genetically related child is not strictly necessary clustered into 14 categories of which 'to contribute to a child's well-being' and 'to experience the love of a child' were most important. Respondents deemed they would need to be the genetic parent of their child to fulfill nearly all their motivations for parenthood. We included couples that visited the fertility clinic for the first time, and the preference for genetic parenthood might change throughout a fertility treatment trajectory. Moreover, what prospective parents expect to be important for their future well-being might not really define parents' well-being. The presumed preference of couples for genetic parenthood was confirmed. Resistance against using donor gametes is more likely among lower educated individuals. Researching whether non-genetic parents actually feel they cannot fulfill the 51 motivations for parenthood, could be a basis for developing patient information. Funded by the Parkes Foundation, the University of Amsterdam and the Leuven University Hospital. No conflict of interest. © The Author 2017. Published by Oxford University Press on behalf of the European Society of Human Reproduction and Embryology. All rights reserved. For Permissions, please e-mail: journals.permissions@oup.com

Longitudinal Changes in Emerging Adults' Attachment Preferences for Their Mother, Father, Friends, and Romantic Partner: Focusing on the Start and End of Romantic Relationships

ERIC Educational Resources Information Center

Umemura, Tomo; Lacinová, Lenka; Macek, Petr; Kunnen, E. Saskia

2017-01-01

Only a few studies have longitudinally explored to whom emerging adults prefer to turn to seek closeness, comfort, and security (called "attachment preferences"), and previous studies on attachment preferences in emerging adults have focused only on the beginning of romantic relationships but not on the end of relationships. Czech…

Would Your Patient Prefer to Be Considered Your Friend? Patient Preferences in Physician Relationships

ERIC Educational Resources Information Center

Magnezi, Racheli; Bergman, Lisa Carroll; Urowitz, Sara

2015-01-01

Objectives. To understand how patient preferences and perceptions of their relationship with their doctor (as patient, friend, partner, client, consumer, or insured) affects confidence in care provided and participation in health care. Methods. Telephone questionnaire to 2,135 households, representative of the population in Israel. Results. A…

How can we improve online HIV and STD prevention for men who have sex with men? Perspectives of hook-up website owners, website users, and HIV/STD directors.

PubMed

Wohlfeiler, Dan; Hecht, Jennifer; Volk, Jonathan; Fisher Raymond, H; Kennedy, Tom; McFarland, Willi

2013-11-01

Internet-based interventions have potential to reduce HIV and STD transmission among men who meet male sexual partners online. From November 2009 to May 2010 we surveyed dating and hook-up website users (n = 3,050), website owners (n = 18), and health department HIV/STD directors (n = 81) to identify structural and behavioral prevention interventions that could be implemented online and which a majority of website users were willing to use, owners were willing to implement, and HIV/STD directors perceived to be effective. A majority of each of the three stakeholder groups agreed on the following: (1) automated HIV/STD testing reminders, (2) local STD test site directories, (3) links to sex-positive safe sex videos, (4) access to sexual health experts, (5) profile options to include safer sex preference, (6) chat rooms for specific sexual interests, (7) filtering partners by their profile information, and (8) anonymous e-card partner notification for STD exposure. Findings help build consensus about how to prioritize resources for implementing online HIV and STD prevention interventions and highlight differences between stakeholders to guide future discussion about how to advance prevention efforts.

The acceptance of the collagen sponge diaphragm as an intravaginal contraceptive in human volunteers.

PubMed

Chvapil, M; Heine, M W; Horton, H

1976-12-01

Two types of highly resilient and liquid-absorbent collagen sponge contraceptives (CSC) in the shape of cylindrical cups (6 cm wide and 2.5 cm thick) were evaluated for acceptance as an intravaginal contraceptive method for a period of 3 months in 27 volunteers. Parameters such as retention, odor, irritation, itching, discharge, and convenience for the user and her sexual partner were tested. Average retention time was 7 to 9 days (range, 2 to 28 days); still, most sexually active volunteers preferred to remove the CSC every 3 to 4 days, rinse them in tap water, and reinsert them. Odor was noticed by users in 4% of the tested sponges and in 30% of all volunteers by medical personnel at the time of removal of the CSC from the vagina. No irritation, itching, or discharge was reported. The CSC alone did not cause any inconvenience to the user or partner, while the CSC with inserted rubber ring was felt by both partners and was found to be dislocated. This study indicates good acceptance of the CSC in intravaginal use. Studies to evaluate the efficacy of collagen sponges as mechanical contraceptive barriers are in progress.

The Relative Importance of Language in Guiding Social Preferences Through Development

PubMed Central

Esseily, Rana; Somogyi, Eszter; Guellai, Bahia

2016-01-01

In this paper, we review evidence from infants, toddlers, and preschoolers to tackle the question of how individuals orient preferences and actions toward social partners and how these preferences change over development. We aim at emphasizing the importance of language in guiding categorization relatively to other cues such as age, race and gender. We discuss the importance of language as part of a communication system that orients infants and older children’s attention toward relevant information in their environment and toward affiliated social partners who are potential sources of knowledge. We argue that other cues (visually perceptible features) are less reliable in informing individuals whether others share a common knowledge and whether they can be source of information. PMID:27812345

The Relative Importance of Language in Guiding Social Preferences Through Development.

PubMed

Esseily, Rana; Somogyi, Eszter; Guellai, Bahia

2016-01-01

In this paper, we review evidence from infants, toddlers, and preschoolers to tackle the question of how individuals orient preferences and actions toward social partners and how these preferences change over development. We aim at emphasizing the importance of language in guiding categorization relatively to other cues such as age, race and gender. We discuss the importance of language as part of a communication system that orients infants and older children's attention toward relevant information in their environment and toward affiliated social partners who are potential sources of knowledge. We argue that other cues (visually perceptible features) are less reliable in informing individuals whether others share a common knowledge and whether they can be source of information.

Explaining interindividual differences in toddlers' collaboration with unfamiliar peers: individual, dyadic, and social factors

PubMed Central

Schuhmacher, Nils; Kärtner, Joscha

2015-01-01

During their third year of life, toddlers become increasingly skillful at coordinating their actions with peer partners and they form joint commitments in collaborative situations. However, little effort has been made to explain interindividual differences in collaboration among toddlers. Therefore, we examined the relative influence of distinct individual, dyadic, and social factors on toddlers' collaborative activities (i.e., level of coordination and preference for joint activity) in joint problem-solving situations with unfamiliar peer partners (n = 23 dyads aged M = 35.7 months). We analyzed the dyadic nonindependent data with mixed models. Results indicated that mothers' expectations regarding their children's social behaviors significantly predicted toddlers' level of coordination. Furthermore, the models revealed that toddlers' positive mutual experiences with the unfamiliar partner assessed during an initial free play period (Phase 1) and their level of coordination in an obligatory collaboration task (Phase 2) promoted toddlers' preference for joint activity in a subsequent optional collaboration task (Phase 3). In contrast, children's mastery motivation and shyness conflicted with their collaborative efforts. We discuss the role of parents' socialization goals in toddlers' development toward becoming active collaborators and discuss possible mechanisms underlying the differences in toddlers' commitment to joint activities, namely social preferences and the trust in reliable cooperation partners. PMID:25983696

Rural Australian Women's Legal Help Seeking for Intimate Partner Violence: Women Intimate Partner Violence Victim Survivors' Perceptions of Criminal Justice Support Services

ERIC Educational Resources Information Center

Ragusa, Angela T.

2013-01-01

Intimate partner violence (IPV) is a widespread, ongoing, and complex global social problem, whose victims continue to be largely women. Women often prefer to rely on friends and family for IPV help, yet when informal support is unavailable they remain hesitant to contact formal services, particularly legal support for many reasons. This study…

Two faces of narcissism and romantic attraction: evidence from a collectivistic culture.

PubMed

Feng, Chunliang; Zhou, Hui; Liang, Yuling; Yi, Li

2012-08-01

The present study was aimed to extend the self-orientation model (Campbell, 1999) to vulnerable narcissism in a collectivistic culture. Two hundred and twenty-seven college students were recruited from China. Participants reported their ratings on measures of vulnerable and grandiose narcissism, attractions to different (caring vs perfect) targets, and their choices of potential romantic partners. Results indicated that those participants classified as grandiose or vulnerable narcissists were more attracted to perfect targets than non-narcissists. In addition, grandiose narcissists preferred to choose perfect targets as their romantic partners, while vulnerable narcissists did not show such a preference when choosing potential partners. These results suggested that culture could influence the function of narcissism. The self-orientation model could not fully explain the choices of vulnerable narcissists.

When Preferences Are in the Way: Children's Predictions of Goal-Directed Behaviors.

PubMed

Yang, Fan; Frye, Douglas

2017-12-18

Across three studies, we examined 4- to 7-year-olds' predictions of goal-directed behaviors when goals conflict with preferences. In Study 1, when presented with stories in which a character had to act against basic preferences to achieve an interpersonal goal (e.g., playing with a partner), 6- and 7-year-olds were more likely than 4- and 5-year-olds to predict the actor would act in accordance with the goal to play with the partner, instead of fulfilling the basic preference of playing a favored activity. Similar results were obtained in Study 2 with scenarios that each involved a single individual pursuing intrapersonal goals that conflicted with his or her basic preferences. In Study 3, younger children's predictions of goal-directed behaviors did not increase for novel goals and preferences, when the influences of their own preferences, future thinking, or a lack of impulse control were minimized. The results suggest that between ages 4 and 7, children increasingly integrate and give more weight to other sources of motivational information (e.g., goals) in addition to preferences when predicting people's behaviors. This increasing awareness may have implications for children's self-regulatory and goal pursuit behaviors. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

Influencers and preference predictors of HPV vaccine uptake among US male and female young adult college students.

PubMed

LaJoie, A Scott; Kerr, Jelani C; Clover, Richard D; Harper, Diane M

2018-06-01

The purpose of the study was to assess the knowledge, attitudes and beliefs of male and female college students in Kentucky about HPV associated diseases and vaccines, and to determine which parameters predicted self-reported uptake of HPV vaccination. A self-selected cross-sectional sample of college students completed an evidence-based online survey. Of approximately 1200 potential respondents, 585 completed the survey. The average age was 20.6 (SD 3.15) and 78% were female; 84% of the population had had one or more sexual partners. Concern for HPV vaccine safety and potential need for boosters did not significantly deter vaccine uptake. Likewise, knowledge about HPV associated cancers was not predictive of vaccine uptake. On the other hand, parental influence for vaccination was a strong predictor for vaccine uptake (aOR = 5.32, 2.71-13.03), and free vaccine nearly doubled the likelihood of being vaccinated (aOR 1.90, 1.05-3.41). In addition, the strong preference for the respondent's partner to be HPV vaccinated predicted vaccine uptake (aOR = 4.04, 95% CI: 2.31-7.05), but the lack of preference for partner vaccination predicted an unvaccinated self (aOR = 0.50, 0.27-0.93). HPV vaccination has been successful in young adult college students in Kentucky. Young adults prefer their partners to be HPV vaccinated regardless of whether they themselves are vaccinated. Parental influence and free vaccine were positive predictors for vaccine uptake in this population. Copyright © 2018 The Authors. Published by Elsevier B.V. All rights reserved.

Time-Site Survey of Substance Use, Sexual Behaviours and Hiv-Testing Practices Among Women Attending Social Venues in Prague

PubMed Central

Stemmler, M. Susan; Hall, Timothy M.; Prokopík, Petr; Shoptaw, Steven

2016-01-01

Summary Aim The rates of HIV acquired through heterosexual contact are increasing in the Czech Republic. This study explored potential HIV risk associations with alcohol, illicit drugs and sexual behaviours among adults from a community-based sample attending gay- and non-gay venues in Prague. Methods Women attending bars, cafes and beer gardens in central Prague responded to the self-administered, time-site survey. Alcohol use was measured by the AUDIT-C and CAGE questionnaires. Sexual network structuring identified number, gender and coital frequency with current and recent sexual partners. Statistical analysis included central tendency, chi-square and logistic regression. Female participants (n = 124) ranged from 18 to 67 years of age (mean 29 years); 25% self-identified as non-heterosexual. Results We found alcohol to be the preferred drug of choice. Younger heterosexual women with new and casual sexual partners were more likely to use alcohol excessively. Women with children reported the least alcohol use. Sixty percent of the sample had never used condoms; condom-use was associated with longer relationship duration and discussions about HIV status with a sexual partner; non-use tended to occur among unmarried women with multiple male partners in short, serial sexual relationships. Women who sought HIV testing tended to be younger and more self-identified as non-heterosexual. Protective practices were rarely reported even when HIV transmission increases via heterosexual sexual partnering. Conclusion Further research is recommended regarding cultural and contextual influences on HIV risk behaviours among Czech women. PMID:26851424

Sexual risk factors for HIV and violence among Puerto Rican women in New York City.

PubMed

Moreno, Claudia L; Morrill, Allison C; El-Bassel, Nabila

2011-05-01

The authors examined sexual factors for HIV risk in 1,003 women of Puerto Rican heritage who attended a community-based NewYork City hospital clinic. Participants' ages ranged from 18 to 73 years. Half were born in the continental United States, and half were born in the Commonwealth of Puerto Rico. All were sexually active within the past 90 days with a male partner.The authors compared sociodemographic characteristics, experience of intimate partner violence (IPV), and HIV sexual risk factors (number of partners, history of sexually transmitted infections [STIs],condom use, and so on).Multiple regression analyses considering sociodemographic characteristics were a predictor for IPV and sexual risk behaviors. The authors found differences in sexual risk behaviors by place of birth (continental United States versus Commonwealth of Puerto Rico) and language chosen for the interview (Spanish or English).Puerto Rican women reported fewer sexual partners and STIs. Mainland-born and English-preference women reported more IPV, risky partners, and condom use. Birth in the continental United States and preference for English appear to be indicators of greater risk for IPV, risky sexual practices, and risky partners. HIV prevention intervention strategies for Puerto Rican women must address differences in heterosexual risk according to language and place of birth.

Public responses to intimate partner violence: comparing preferences of Chinese and American college students.

PubMed

Wu, Yuning; Button, Deeanna M; Smolter, Nicole; Poteyeva, Margarita

2013-01-01

Based on data collected from college students in Beijing and Hong Kong (China) and in Newark and Detroit (United States), this study assesses and explains citizen preferences of 2 major formalized responses to intimate partner violence (IPV)--law enforcement and social services intervention--in a cross-cultural context. Results show that Chinese respondents have lower support for law enforcement responses. Regional variation is only observed within China with students from Hong Kong supporting both law enforcement and social services responses more than their Beijing counterparts. Results also show that social attitudinal variables--including male dominance ideology, perceptions of IPV causation, support for the criminalization of IPV, and tolerance of IPV--influence public preferences of responses to IPV more than do demographic and experiential variables.

Geosocial Networking App Use Among Men Who Have Sex With Men in Serious Romantic Relationships.

PubMed

Macapagal, Kathryn; Coventry, Ryan; Puckett, Jae A; Phillips, Gregory; Mustanski, Brian

2016-08-01

Geosocial networking (GSN) mobile phone applications ("apps") are used frequently among men who have sex with men (MSM) to socialize and meet sexual partners. Though GSN apps are used by some MSM in partnered relationships, little is known about how the use of GSN apps among MSM in serious romantic relationships can influence couples' sexual and relationship health. MSM in serious relationships (N = 323; M age = 40 years) were recruited through a popular GSN app for MSM. Participants completed open-ended items regarding the costs and benefits of app use to their relationships, discussions of app use with their partners, and preferences for relationship education related to app use. Reported benefits of app use included improving sex and communication with one's primary partner and fulfilling unmet sexual needs. Although approximately half had not discussed app use with their partners, citing app use as a "non-issue," many cited various drawbacks to app use, including jealousy and being a distraction from the relationship. Few described sexual health concerns as a drawback to meeting partners through apps. Regarding relationship education preferences, most wanted help with general communication skills and how to express one's sexual needs to a partner. Although GSN app use can enhance relationships and sex among partnered MSM, unclear communication about app use may contribute to negative relationship outcomes and could prevent partners from having sexual needs met. Relationship and sexual health education programs for male couples should consider addressing social media and technology use in their curricula.

Geosocial Networking App Use Among Men Who Have Sex With Men in Serious Romantic Relationships

PubMed Central

Coventry, Ryan; Puckett, Jae A.; Phillips, Gregory; Mustanski, Brian

2016-01-01

Geosocial networking (GSN) mobile phone applications (“apps”) are used frequently among men who have sex with men (MSM) to socialize and meet sexual partners. Though GSN apps are used by some MSM in partnered relationships, little is known about how the use of GSN apps among MSM in serious romantic relationships can influence couples' sexual and relationship health. MSM in serious relationships (N = 323; M age = 40 years) were recruited through a popular GSN app for MSM. Participants completed open-ended items regarding the costs and benefits of app use to their relationships, discussions of app use with their partners, and preferences for relationship education related to app use. Reported benefits of app use included improving sex and communication with one's primary partner and fulfilling unmet sexual needs. Although approximately half had not discussed app use with their partners, citing app use as a “non-issue,” many cited various drawbacks to app use, including jealousy and being a distraction from the relationship. Few described sexual health concerns as a drawback to meeting partners through apps. Regarding relationship education preferences, most wanted help with general communication skills and how to express one's sexual needs to a partner. Although GSN app use can enhance relationships and sex among partnered MSM, unclear communication about app use may contribute to negative relationship outcomes and could prevent partners from having sexual needs met. Relationship and sexual health education programs for male couples should consider addressing social media and technology use in their curricula. PMID:26969319

Male perception about the inconveniences associated with monthly bleeding for their partner - an international survey.

PubMed

Lete, Iñaki; Lobo, Paloma; Nappi, Rossella E; Pintiaux, Axelle; Fiala, Christian; Häusler, Günther; Chabbert-Buffet, Nathalie

2018-02-01

To assess men's perceptions about monthly bleeding and associated inconveniences for their partner, as well as men's attitudes regarding the desired menstruation frequency for their partner and knowledge about hormonal contraceptives. A 15 min quantitative online survey was conducted among 5044 men aged 18-45 years, who had been in a relationship for more than 6 months, across 13 European countries (Austria, Belgium, Czech Republic, France, Germany, Hungary, Italy, Latvia, The Netherlands, Poland, Portugal, Spain and Switzerland). Responses were compared to those obtained in a similar study among European women. Most men perceived that their partner considered her menstrual flow as moderate, lasting an average of 5.2 d, slightly longer than previously reported by women. Almost all men reported that their partners experience menstruation-related symptoms. However, prevalence of mood-related symptoms was perceived to be more frequent and physical symptoms less frequent, relative to women's self-reported symptoms. Given the option, 71% of men would choose longer intervals between their partner's periods. Maintaining the couple's sex life, social life and relationship quality were key factors cited in their preference. Overall, 42% of respondents stated that women taking hormonal contraceptives needed to have monthly periods. Men's perception regarding their partner's periods was generally consistent with that previously reported by women. Most men would prefer less frequent bleeding episodes for their partners. Although, the present data suggest that couples are discussing periods, knowledge about contraception could be improved. Health care professionals should intensify counselling to better inform both partners about their contraceptive options.

Violence against Deaf Women: Effect of Partner Hearing Status

ERIC Educational Resources Information Center

Anderson, Melissa L.; Kobek Pezzarossi, Caroline M.

2014-01-01

Using a sample of Deaf female undergraduate students, the current study sought to investigate the prevalence, correlates, and characteristics of intimate partner violence victimization in hearing-Deaf and Deaf-Deaf relationships. Initial results suggest that similarities in hearing status and communication preference are associated with increased…

Stabilization of a bat-pitcher plant mutualism.

PubMed

Schöner, Michael G; Schöner, Caroline R; Ermisch, Rebecca; Puechmaille, Sébastien J; Grafe, T Ulmar; Tan, Moi Chan; Kerth, Gerald

2017-10-13

Despite the long persistence of many mutualisms, it is largely unknown which mechanisms stabilize these interactions. This is especially true if only one mutualism partner can choose alternative partners while the other cannot, resulting in a power asymmetry. According to biological market theory the choosing partner should prefer the more dependent partner if the latter offers commodities of higher quality than its competitors. We tested this prediction using Bornean carnivorous pitcher plants (Nepenthes hemsleyana) that strongly rely on faecal nitrogen of bats (Kerivoula hardwickii) which roost inside the pitchers. The bats also roost in furled leaves of various plants. Surprisingly, during field observations the bats did not always choose N. hemsleyana pitchers despite their superior quality but were generally faithful either to pitchers or to furled leaves. In behavioural experiments 21% of the leaf-roosting bats switched to pitchers, while the majority of these bats and all pitcher-roosting individuals were faithful to the roost type in which we had found them. Genetic differentiation cannot explain this faithfulness, which likely results from different roosting traditions. Such traditions could have stabilizing or destabilizing effects on various mutualisms and should be investigated in more detail.

Sexual Preferences and Presentation on Geosocial Networking Apps by Indian Men Who Have Sex With Men in Maharashtra.

PubMed

Rhoton, Jayson; Wilkerson, J Michael; Mengle, Shruta; Patankar, Pallav; Rosser, B R Simon; Ekstrand, Maria L

2016-10-31

The affordability of smartphones and improved mobile networks globally has increased the popularity of geosocial networking (GSN) apps (eg, Grindr, Scruff, Planetromeo) as a method for men who have sex with men (MSM) to seek causal sex partners and engage with the queer community. As mobile penetration continues to grow in India, it is important to understand how self-presentation on GSN app is relevant because it offers insight into a population that has not been largely studied. There is very little information about how Indian MSM discuss their sexual preferences and condom preferences and disclose their human immunodeficiency virus (HIV) status with potential sex partners on Web-based platforms. The objective of this study was to describe how self-presentation by Indian MSM on GSN apps contributes to sexual preferences, HIV or sexually transmitted infection (STI) disclosure, and if the presentation differs due to proximity to the Greater Mumbai or Thane region. Between September 2013 and May 2014, participants were recruited through banner advertisements on gay websites, social media advertisements and posts, and distribution of print materials at outreach events hosted by lesbian, gay, bisexual, transgender (LGBT) and HIV service organizations in Maharashtra, India. Eligible participants self-identified as being MSM or hijra (transgender) women, living in Maharashtra, aged above 18 years, having regular Internet access, and having at least one male sex partner in the previous 90 days. Indian MSM living inside and outside the Greater Mumbai or Thane region reported an average of 6.7 (SD 11.8) male sex partners in the last 3 months; on average HIV status of the sex partners was disclosed to 2.9 (SD 8.9). The most commonly used websites and GSN apps by MSM living inside Greater Mumbai or Thane region were Planetromeo, Grindr, and Gaydar. Results demonstrated that MSM used smartphones to access GSN apps and stated a preference for both condomless and protected anal sex but did not disclose their HIV status. This low level of HIV disclosure potentially increases risk of HIV or STI transmission; therefore, trends in use should be monitored. Our data helps to fill the gap in understanding how Indian MSM use technology to find casual sex partners, disclose their sexual preference, and their HIV status on Web-based platforms. As mobile penetration in India continues to grow and smartphone use increases, the use of GSN sex-seeking apps by MSM should also increase, potentially increasing the risk of HIV or STI transmission within the app's closed sexual networks. ©Jayson Rhoton, J Michael Wilkerson, Shruta Mengle, Pallav Patankar, BR Simon Rosser, Maria L Ekstrand. Originally published in JMIR Mhealth and Uhealth (http://mhealth.jmir.org), 31.10.2016.

Self-Identified Sexual Orientation and Sexual Risk Behavior Among HIV-Infected Latino Males.

PubMed

Champion, Jane Dimmitt; Szlachta, Alaina

2016-01-01

The HIV testing, disclosure, and sexual practices of ethnic minority men suggest that addressing sexual risk behavior and the underlying reasons for not receiving HIV testing or disclosing HIV-infection status-unique to differing populations-would improve public health interventions. Descriptive behaviors and underlying perspectives reported in our study suggest that public health interventions for HIV-infected Latino men who self-identify as heterosexual should explicitly identify substance use, needle sharing, and unprotected sex to current partners as behaviors placing both oneself and one's partners at high risk for contracting HIV. However, diversity of sexual behavior among gay, straight, and bisexual HIV-infected Latino men in our study ultimately suggested that clinicians should not rely on simplistic conceptions of sexuality in assessment of self-care needs. Care in presentation and discussion of self-identified sexual preference and sexual behavior is indicated, as these do not determine actual sexual orientation or behavior and vice versa. Copyright © 2016 Association of Nurses in AIDS Care. Published by Elsevier Inc. All rights reserved.

INTIMATE PARTNER VIOLENCE AND CONTRACEPTIVE USE IN INDIA: THE MODERATING INFLUENCE OF CONFLICTING FERTILITY PREFERENCES AND CONTRACEPTIVE INTENTIONS.

PubMed

Forrest, Walter; Arunachalam, Dharmalingam; Navaneetham, Kannan

2018-03-01

Several studies report that women exposed to intimate partner violence (IPV) are less likely to use contraception, but the evidence that violence consistently constrains contraceptive use is inconclusive. One plausible explanation for this ambiguity is that the effects of violence on contraceptive use depend on whether couples are likely to have conflicting attitudes to it. In particular, although some men may engage in violence to prevent their partners from using contraception, they are only likely to do so if they have reason to oppose its use. Using a longitudinal follow-up to the Indian National Family Health Survey (NFHS-2), conducted among a sample of rural, married women of childbearing age, this study investigated whether the relationship between IPV and contraceptive use is contingent on whether women's contraceptive intentions contradict men's fertility preferences. Results indicate that women experiencing IPV are less likely to undergo sterilization, but only if they intended to use contraception and their partners wanted more children (Average Marginal Effect (AME)=-0.06; CI=-0.10, -0.01). Violence had no effect on sterilization among women who did not plan to use contraception (AME=-0.02; CI=-0.06, 0.03) or whose spouses did not want more children (AME=-0.01; CI=-0.9, 0.06). These results imply that violence enables some men to resolve disagreements over the use of contraception by imposing their fertility preferences on their partners. They also indicate that unmet need for contraception could be an intended consequence of violence.

The role of sexual arousal and sexual partner characteristics in HIV+ MSM's intentions to engage in unprotected sexual intercourse.

PubMed

Shuper, Paul A; Fisher, William A

2008-07-01

This study investigated the effects of sexual arousal and sexual partner characteristics as determinants of HIV+ men who have sex with men's (MSM) intentions to engage in unprotected sex. In a computer-based controlled experiment, 67 HIV+ MSM underwent a sexual arousal manipulation and indicated their intentions to engage in unprotected sex with hypothetical partners who differed in terms of HIV serostatus, physical attractiveness, relationship type, and preference for condom use. Computer-delivered questions assessed HIV+ MSM's intentions to engage in various sexual acts with each hypothetical partner. As predicted, sexually aroused HIV+ MSM indicated stronger intentions to engage in unprotected sex than nonaroused HIV+ MSM; and having a partner who was attractive, HIV+, long term, or who preferred not to use condoms, also led to riskier intentions. Several significant interactions among these factors were found, which were generally consistent with predictions and with theory and research on cognitive processing and decision making. These findings have implications for understanding risky sexual behavior among HIV+ individuals and for the development of interventions to reduce this risk. PsycINFO Database Record (c) 2008 APA, all rights reserved.

Predictors of HIV testing among men who have sex with men in a large Chinese city.

PubMed

Zhang, Lan; Xiao, Yan; Lu, Rongrong; Wu, Guohui; Ding, Xianbin; Qian, Han-zhu; McFarland, Willi; Ruan, Yuhua; Vermund, Sten H; Shao, Yiming

2013-03-01

HIV testing is the gateway for prevention and care. We explored factors associated with HIV testing among Chinese men who have sex with men (MSM). In Chongqing City, we recruited 492 MSM in 2010 using respondent-driven sampling in a cross-sectional study. Computer-assisted self-interviews were conducted to collect information on history of HIV testing. Only 58% of participants reported ever having taken an HIV test. Men who have sex with men who had a college degree (adjusted odds ratio [AOR], 1.7; 95% confidence interval (CI), 1.2-2.6; P = 0.008) were more likely to take a test; those who preferred a receptive role in anal sex were less likely to do so than those with insertive sex preference (AOR, 0.6; 95% CI, 0.35-0.94; P = 0.03); and those who used condoms with the recent male partner during the past 6 months were more likely to get tested (AOR, 2.87; 95% CI, 1.25-6.62; P = 0.01). Principal perceived barriers to testing included the following: fear of knowing a positive result, fear of discrimination if tested positive, low perceived risk of HIV infection, and not knowing where to take a test. Factors reported to facilitate testing were sympathetic attitudes from health staff and guaranteed confidentiality. Prevalence was high: 11.7% HIV positive and 4.7% syphilis positive. The HIV testing rate among MSM in Chongqing is still low, although MSM prevalence is high compared with other Chinese cities. Men who have sex with men preferring receptive anal sex are less likely to get testing and perceive having lower HIV risk. Along with expanded education and social marketing, a welcoming and nonjudgmental environment for HIV testing is needed.

Infant Mortality Risk and Paternity Certainty Are Associated with Postnatal Maternal Behavior toward Adult Male Mountain Gorillas (Gorilla beringei beringei)

PubMed Central

Rosenbaum, Stacy; Hirwa, Jean Paul; Silk, Joan B.; Vigilant, Linda; Stoinski, Tara S.

2016-01-01

Sexually selected infanticide is an important source of infant mortality in many mammalian species. In species with long-term male-female associations, females may benefit from male protection against infanticidal outsiders. We tested whether mountain gorilla (Gorilla beringei beringei) mothers in single and multi-male groups monitored by the Dian Fossey Gorilla Fund’s Karisoke Research Center actively facilitated interactions between their infants and a potentially protective male. We also evaluated the criteria mothers in multi-male groups used to choose a preferred male social partner. In single male groups, where infanticide risk and paternity certainty are high, females with infants <1 year old spent more time near and affiliated more with males than females without young infants. In multi-male groups, where infanticide rates and paternity certainty are lower, mothers with new infants exhibited few behavioral changes toward males. The sole notable change was that females with young infants proportionally increased their time near males they previously spent little time near when compared to males they had previously preferred, perhaps to encourage paternity uncertainty and deter aggression. Rank was a much better predictor of females’ social partner choice than paternity. Older infants (2–3 years) in multi-male groups mirrored their mothers’ preferences for individual male social partners; 89% spent the most time in close proximity to the male their mother had spent the most time near when they were <1 year old. Observed discrepancies between female behavior in single and multi-male groups likely reflect different levels of postpartum intersexual conflict; in groups where paternity certainty and infanticide risk are both high, male-female interests align and females behave accordingly. This highlights the importance of considering individual and group-level variation when evaluating intersexual conflict across the reproductive cycle. PMID:26863300

Of trophies and pillars: exploring the terror management functions of short-term and long-term relationship partners.

PubMed

Kosloff, Spee; Greenberg, Jeff; Sullivan, Daniel; Weise, David

2010-08-01

Prior terror management research shows that mortality salience (MS) motivates both self-esteem striving and worldview bolstering. The present research examined these processes in the context of dating preferences. It was hypothesized that in short-term romantic contexts, MS-induced self-esteem striving motivates interest in dating a physically attractive other, whereas in long-term romantic contexts, MS-induced motives for worldview validation heighten interest in dating a same-religion other. Study 1 showed that in a short-term dating context, MS increased preference for an attractive but religiously dissimilar person, whereas in a long-term dating context, MS increased preference for a religiously similar, less attractive person. Study 2 clarified that MS motivates preference for attractive short-term partners for their self-enhancing properties rather than their potential sexual availability. Study 3 supported the theorized processes, showing that under MS, self-esteem-relevant constructs became spontaneously accessible in short-term dating contexts, whereas worldview-relevant constructs became spontaneously accessible in long-term dating contexts.

Childhood Social Functioning and Young Adult Intimate Partner Violence in Girls With and Without ADHD: Response Inhibition as a Moderator.

PubMed

Youn, Cherry; Meza, Jocelyn I; Hinshaw, Stephen P

2018-06-01

Examine the moderating effects of response inhibition on the longitudinal association between social preference/relational aggression measured in childhood, and intimate partner violence (IPV) measured in young adulthood, among women with ( n = 140) and without ( n = 88) histories of childhood ADHD. During childhood, social preference was measured through confidential peer sociometric nominations, yielding negative and positive peer regard; relational aggression was assessed via staff behavioral observations; and response inhibition was assessed using commission errors from the continuous performance task. During young adulthood, IPV was ascertained via a clinician-administered, semistructured interview. Social preference and relational aggression independently predicted IPV; this prospective link was moderated by response inhibition. In combination with low social preference or high relational aggression in childhood, poor response inhibition predicted the highest levels of young-adult IPV. Given the developmental significance of peer relationships, additional research on the causes of and treatments for poor social functioning in ADHD is warranted.

Central oxytocin receptors mediate mating-induced partner preferences and enhance correlated activation across forebrain nuclei in male prairie voles.

PubMed

Johnson, Zachary V; Walum, Hasse; Jamal, Yaseen A; Xiao, Yao; Keebaugh, Alaine C; Inoue, Kiyoshi; Young, Larry J

2016-03-01

Oxytocin (OT) is a deeply conserved nonapeptide that acts both peripherally and centrally to modulate reproductive physiology and sociosexual behavior across divergent taxa, including humans. In vertebrates, the distribution of the oxytocin receptor (OTR) in the brain is variable within and across species, and OTR signaling is critical for a variety of species-typical social and reproductive behaviors, including affiliative and pair bonding behaviors in multiple socially monogamous lineages of fishes, birds, and mammals. Early work in prairie voles suggested that the endogenous OT system modulates mating-induced partner preference formation in females but not males; however, there is significant evidence that central OTRs may modulate pair bonding behavior in both sexes. In addition, it remains unclear how transient windows of central OTR signaling during sociosexual interaction modulate neural activity to produce enduring shifts in sociobehavioral phenotypes, including the formation of selective social bonds. Here we re-examine the role of the central OT system in partner preference formation in male prairie voles using a selective OTR antagonist delivered intracranially. We then use the same antagonist to examine how central OTRs modulate behavior and immediate early gene (Fos) expression, a metric of neuronal activation, in males during brief sociosexual interaction with a female. Our results suggest that, as in females, OTR signaling is critical for partner preference formation in males and enhances correlated activation across sensory and reward processing brain areas during sociosexual interaction. These results are consistent with the hypothesis that central OTR signaling facilitates social bond formation by coordinating activity across a pair bonding neural network. Copyright © 2015 Elsevier Inc. All rights reserved.

Social preferences of developing guinea pigs (Cavia porcellus) from the preweaning to the periadolescent periods.

PubMed

Hennessy, Michael B; Young, Travis L; O'Leary, Shonagh K; Maken, Deborah S

2003-12-01

Preference tests in a novel environment (Experiment 1) and unobtrusive observations in a specialized living environment (Experiment 2) examined the attractiveness of various classes of conspecifics for maturing guinea pigs (Cavia porcellus). It was found that (a). the young continued to remain near the mother well beyond weaning; (b). there was increased time spent with unrelated adult females, but not males, after weaning; (c). male and female offspring behaved similarly; and (d). littermates spent considerable time with each other. These results provide no evidence that guinea pigs approaching sexual maturity begin to associate preferentially with novel animals or potential breeding partners. Choices were largely predictable from earlier findings of the ability of various classes of conspecifics to reduce hypothalamic-pituitary-adrenal activity of the young.

Acceptability and preferences for safer conception HIV prevention strategies: A qualitative study

PubMed Central

Schwartz, Sheree; West, Nora; Phofa, Rebecca; Yende, Nompumelelo; Sanne, Ian; Bassett, Jean; Van Rie, Annelies

2016-01-01

Safer conception strategies to reduce HIV transmission risk include antiretroviral therapy (ART) for HIV-positive partners, pre-exposure prophylaxis (PrEP) for HIV-negative partners, condomless sex limited to fertile periods, and home-based self-insemination. Resistance to taking treatment or cultural concerns may limit uptake of strategies and intervention success. Understanding the acceptability and preferences between different approaches is important to optimize service delivery. Between February-July 2013, 42 adults (21 HIV-positive and 21 HIV-negative) receiving primary care at Witkoppen Health and Welfare Centre in Johannesburg, South Africa, participated in focus group discussions or in-depth interviews. Themes were analyzed using a grounded theory approach. Acceptability of antiretroviral-based (ARV) strategies varied. Concerns over side effects, ARV treatment duration, and beliefs that treatment is only for the sick were common barriers, however desperation for a child was noted as a facilitator for uptake. HIV-negative men and HIV-positive women had favorable attitudes towards self-insemination, though paternity and safety concerns were raised. Self-insemination was generally preferred over PrEP by HIV-negative men, and ARV-based strategies were preferred by couples with HIV-negative female partners, despite concerns raised about condomless sex while virally suppressed. Knowledge about the fertile window was low. A strong counselling component will be required for effective uptake and adherence to safer conception services. PMID:26384950

Acceptability and preferences for safer conception HIV prevention strategies: a qualitative study.

PubMed

Schwartz, Sheree R; West, Nora; Phofa, Rebecca; Yende, Nompumelelo; Sanne, Ian; Bassett, Jean; Van Rie, Annelies

2016-10-01

Safer conception strategies to reduce the HIV transmission risk include antiretroviral therapy for HIV-positive partners, pre-exposure prophylaxis for HIV-negative partners, condomless sex limited to fertile periods, and home-based self-insemination. Resistance to taking treatment or cultural concerns may limit uptake of strategies and intervention success. Understanding the acceptability and preferences between different approaches is important to optimise service delivery. Between February and July 2013, 42 adults (21 HIV-positive and 21 HIV-negative) receiving primary care at Witkoppen Health and Welfare Centre in Johannesburg, South Africa, participated in focus group discussions or in-depth interviews. Themes were analysed using a grounded theory approach. Acceptability of antiretroviral-based strategies varied. Concerns over side effects, antiretroviral treatment duration and beliefs that treatment is only for the sick were common barriers; however, desperation for a child was noted as a facilitator for uptake. HIV-negative men and HIV-positive women had favourable attitudes towards self-insemination, though paternity and safety concerns were raised. Self-insemination was generally preferred over pre-exposure prophylaxis by HIV-negative men, and antiretroviral-based strategies were preferred by couples with HIV-negative female partners, despite concerns raised about condomless sex while virally suppressed. Knowledge about the fertile window was low. A strong counselling component will be required for effective uptake and adherence to safer conception services. © The Author(s) 2016.

Female brain size affects the assessment of male attractiveness during mate choice.

PubMed

Corral-López, Alberto; Bloch, Natasha I; Kotrschal, Alexander; van der Bijl, Wouter; Buechel, Severine D; Mank, Judith E; Kolm, Niclas

2017-03-01

Mate choice decisions are central in sexual selection theory aimed to understand how sexual traits evolve and their role in evolutionary diversification. We test the hypothesis that brain size and cognitive ability are important for accurate assessment of partner quality and that variation in brain size and cognitive ability underlies variation in mate choice. We compared sexual preference in guppy female lines selected for divergence in relative brain size, which we have previously shown to have substantial differences in cognitive ability. In a dichotomous choice test, large-brained and wild-type females showed strong preference for males with color traits that predict attractiveness in this species. In contrast, small-brained females showed no preference for males with these traits. In-depth analysis of optomotor response to color cues and gene expression of key opsins in the eye revealed that the observed differences were not due to differences in visual perception of color, indicating that differences in the ability to process indicators of attractiveness are responsible. We thus provide the first experimental support that individual variation in brain size affects mate choice decisions and conclude that differences in cognitive ability may be an important underlying mechanism behind variation in female mate choice.

Male resource defense mating system in primates? An experimental test in wild capuchin monkeys.

PubMed

Tiddi, Barbara; Heistermann, Michael; Fahy, Martin K; Wheeler, Brandon C

2018-01-01

Ecological models of mating systems provide a theoretical framework to predict the effect of the defendability of both breeding resources and mating partners on mating patterns. In resource-based mating systems, male control over breeding resources is tightly linked to female mating preference. To date, few field studies have experimentally investigated the relationship between male resource control and female mating preference in mammals due to difficulties in manipulating ecological factors (e.g., food contestability). We tested the within-group male resource defense hypothesis experimentally in a wild population of black capuchin monkeys (Sapajus nigritus) in Iguazú National Park, Argentina. Sapajus spp. represent an ideal study model as, in contrast to most primates, they have been previously argued to be characterized by female mate choice and a resource-based mating system in which within-group resource monopolization by high-ranking males drives female mating preference for those males. Here, we examined whether females (N = 12) showed a weaker preference for alpha males during mating seasons in which food distribution was experimentally manipulated to be less defendable relative to those in which it was highly defendable. Results did not support the within-group male resource defense hypothesis, as female sexual preferences for alpha males did not vary based on food defendability. We discuss possible reasons for our results, including the possibility of other direct and indirect benefits females receive in exercising mate choice, the potential lack of tolerance over food directed towards females by alpha males, and phylogenetic constraints.

Use of new technologies to notify possible contagion of sexually-transmitted infections among men.

PubMed

Carnicer-Pont, Dolors; Barbera-Gracia, María Jesús; Fernández-Dávila, Percy; García de Olalla, Patricia; Muñoz, Rafael; Jacques-Aviñó, Constanza; Saladié-Martí, María Pilar; Gosch-Elcoso, Mercè; Arellano Muñoz, Encarna; Casabona, Jordi

2015-01-01

Among men who have sex with men (MSM), the association between searching for sexual partners' on the Internet and increased risk of sexually transmitted infections (STIs)/HIV infection, together with current low levels of partner notification (PN), justifies a study to explore the intention to use new communication technologies for PN in Spain. Two cross-sectional surveys were performed: the first was administered online to visitors to web pages where the survey was advertised; the second was administered on paper to patients attending an STI Unit and centres similar to Community-Based Voluntary Counselling and Testing centres. The study population comprised 1578 Spanish residents (median age, 34 years [range: 18 to 74]); 84% lived in urban areas, and 69% reported searching for sexual partners on the Internet. Thirty-seven per cent would be willing to use a website for PN, 26% did not know if they would use one, and 37% would not want to use one. The main reasons for not intending to notify STI/HIV were "shame or fear" (stable partner) and "not knowing how to contact them" (casual partner). The preferred method of notification was face to face (73%) for both stable and casual partners, although using new technologies (Short Messaging System, e-mail, web page, phone applications) was widely accepted for notifying casual partners. Fighting stigma and promoting alternative methods of PN among MSM and health professionals through new technologies could increase the frequency of PN. This approach will improve early detection and reduce transmission in Spain. Copyright © 2014 SESPAS. Published by Elsevier Espana. All rights reserved.

Facialmetric similarities mediate mate choice: sexual imprinting on opposite-sex parents.

PubMed

Bereczkei, Tamas; Hegedus, Gabor; Hajnal, Gabor

2009-01-07

Former studies have suggested that imprinting-like processes influence the shaping of human mate preferences. In this study, we provide more direct evidence for assessing facial resemblance between subjects' partner and subjects' parents. Fourteen facial proportions were measured on 312 adults belonging to 52 families, and the correlations between family members were compared with those of pairs randomly selected from the population. Spouses proved to be assortatively mated in the majority of measured facial proportions. Significant correlations have been found between the young men and their partner's father (but not his mother), especially on facial proportions belonging to the central area of the face. Women also showed resemblance to their partner's mother (but not to their father) in the facial characteristics of their lower face. Replicating our previous studies, facial photographs of participants were also matched by independent judges who ascribed higher resemblance between partners, and subjects and their partners' opposite-sex parents, compared with controls. Our results support the sexual imprinting hypothesis which states that children shape a mental template of their opposite-sex parents and search for a partner who resembles that perceptual schema. The fact that only the facial metrics of opposite-sex parents showed resemblance to the partner's face tends to rule out the role of familiarity in shaping mating preferences. Our findings also reject several other rival hypotheses. The adaptive value of imprinting-related human mating is discussed, and a hypothesis is made of why different facial areas are involved in males' and females' search for resemblance.

Is the distant relationship of fathers and homosexual sons related to the sons' erotic preference for male partners, or to the sons' atypical gender identity, or to both?

PubMed

Freund, K; Blanchard, R

1983-01-01

Study 1 compared the retrospectively reported father-son relationships of four groups of adult males: (a) Gynephiles (males who erotically prefer physically mature females), (b) androphiles (who prefer physically mature males), (c) a combined group of heterosexual pedophiles and pedohebephiles (the latter being attracted to pubescent as well as prepubescent females), and (d) a combined group of homosexual pedophiles and pedohebephiles (the latter attracted to pubescent as well as prepubescent males). The gynephiles were paid volunteers; the latter three groups were patients. The androphiles, the only group among those compared known to exhibit a measurably greater degree of cross gender identity in childhood, were also the only group to report significantly poorer father-son relations. The homosexual pedo/pedohebephiles, who also prefer male partners but who exhibit typical male gender identity in childhood, did not differ in father-son relations from the gynephiles or the heterosexual pedo/pedohebephiles. Study 2 showed that, within a sample of nonpatient volunteer androphiles, those individuals who reported the greatest degree of cross gender behavior in childhood also tended to report the worst relationships with their fathers. This correlation was replicated within a sample of androphilic patients in Study 3. The consistent pattern of results obtained from these three studies suggests that the emotionally distant relationships of fathers and androphilic sons relate to the sons' atypical childhood gender identity (or observable gender role behavior) rather than to the sons' erotic preference for male partners per se.

Peer status and aggression as predictors of dating popularity in adolescence.

PubMed

Houser, John J; Mayeux, Lara; Cross, Cassandra

2015-03-01

Research has identified links between dating and aversive behavior such as aggression and bullying in adolescence, highlighting the need for studies that further our understanding of romantic relationships and their dynamics during this period. This study tested the associations between dating popularity and overt and relational aggression, social preference, and peer popularity. Of particular interest were the moderating roles of social preference and peer popularity in the association of aggression with dating popularity. Further moderation by gender was also explored. Participants were 478 ninth-graders (48% girls) with peer nomination scores for peer status, aggression, and dating popularity. Dating popularity was positively correlated with popularity, social preference, and overt and relational aggression. Regression models indicated that popular, overtly aggressive girls were seen as desirable dating partners by their male peers. Relational aggression was associated with dating popularity for both boys and girls, especially for youths who were well-liked by peers. These findings are interpreted in light of developmental-contextual perspectives on adolescent romantic relationships and Resource Control Theory.

26 CFR 301.6231(a)(3)-1 - Partnership items.

Code of Federal Regulations, 2010 CFR

2010-04-01

... subtitle A of the Code are more appropriately determined at the partnership level than at the partner level and, therefore, are partnership items: (1) The partnership aggregate and each partner's share of each... contributions); (iii) Items of the partnership which may be tax preference items under section 57(a) for any...

Character Strengths Are Prominent as Mate Preferences of Turkish Students

ERIC Educational Resources Information Center

White, Elizabeth Michelle; Pearce, Amy R.; Khramtsova, Irina

2011-01-01

This study addressed the traits and characteristics that Turkish students deem most important in a long-term romantic partner. We collected quantitative and qualitative data on characteristics desired in romantic partners from students attending Bahçesehir Üniversitesi in Istanbul, Turkey. Like our previous cross-cultural studies conducted in…

Group dynamic and its effect on classroom climate, achievement, and time in lab in the organic chemistry laboratory classroom

NASA Astrophysics Data System (ADS)

Hall, Rachael S.

Despite the many studies on the benefits of cooperative learning, there is surprising little research into how the classroom as a whole changes when these cooperative groups are reassigned. In one section of CHEM 3011 in Fall 2013, students were allowed to pick their partner and kept the same partner all semester. In another section during the same semester, students were assigned a different partner for every wet lab and were allowed to pick their partners during the computer simulation labs. The students in both sections were given the "preferred" version of the Science Laboratory Environment Inventory (SLEI) at the beginning of the semester to elicit student preferences for the class environment, and the "actual" version of the SLEI and the Class Life Instrument at the end of the semester to determine what actually occurred during the semester. The students' interactions were recorded using an observational instrument developed specifically for this project. The students' responses to surveys, interactions, grades, and time in lab were analyzed for differences between the two sections. The results of this study will be discussed.

High density array fabrication and readout method for a fiber optic biosensor

DOEpatents

Pinkel, Daniel; Gray, Joe

1997-01-01

The invention relates to the fabrication and use of biosensors comprising a plurality of optical fibers each fiber having attached to its "sensor end" biological "binding partners" (molecules that specifically bind other molecules to form a binding complex such as antibody-antigen, lectin-carbohydrate, nucleic acid-nucleic acid, biotin-avidin, etc.). The biosensor preferably bears two or more different species of biological binding partner. The sensor is fabricated by providing a plurality of groups of optical fibers. Each group is treated as a batch to attach a different species of biological binding partner to the sensor ends of the fibers comprising that bundle. Each fiber, or group of fibers within a bundle, may be uniquely identified so that the fibers, or group of fibers, when later combined in an array of different fibers, can be discretely addressed. Fibers or groups of fibers are then selected and discretely separated from different bundles. The discretely separated fibers are then combined at their sensor ends to produce a high density sensor array of fibers capable of assaying simultaneously the binding of components of a test sample to the various binding partners on the different fibers of the sensor array. The transmission ends of the optical fibers are then discretely addressed to detectors--such as a multiplicity of optical sensors. An optical signal, produced by binding of the binding partner to its substrate to form a binding complex, is conducted through the optical fiber or group of fibers to a detector for each discrete test. By examining the addressed transmission ends of fibers, or groups of fibers, the addressed transmission ends can transmit unique patterns assisting in rapid sample identification by the sensor.

High density array fabrication and readout method for a fiber optic biosensor

DOEpatents

Pinkel, Daniel; Gray, Joe; Albertson, Donna G.

2000-01-01

The invention relates to the fabrication and use of biosensors comprising a plurality of optical fibers each fiber having attached to its "sensor end" biological "binding partners" (molecules that specifically bind other molecules to form a binding complex such as antibody-antigen, lectin-carbohydrate, nucleic acid-nucleic acid, biotin-avidin, etc.). The biosensor preferably bears two or more different species of biological binding partner. The sensor is fabricated by providing a plurality of groups of optical fibers. Each group is treated as a batch to attach a different species of biological binding partner to the sensor ends of the fibers comprising that bundle. Each fiber, or group of fibers within a bundle, may be uniquely identified so that the fibers, or group of fibers, when later combined in an array of different fibers, can be discretely addressed. Fibers or groups of fibers are then selected and discretely separated from different bundles. The discretely separated fibers are then combined at their sensor ends to produce a high density sensor array of fibers capable of assaying simultaneously the binding of components of a test sample to the various binding partners on the different fibers of the sensor array. The transmission ends of the optical fibers are then discretely addressed to detectors--such as a multiplicity of optical sensors. An optical signal, produced by binding of the binding partner to its substrate to form a binding complex, is conducted through the optical fiber or group of fibers to a detector for each discrete test. By examining the addressed transmission ends of fibers, or groups of fibers, the addressed transmission ends can transmit unique patterns assisting in rapid sample identification by the sensor.

High density array fabrication and readout method for a fiber optic biosensor

DOEpatents

Pinkel, Daniel; Gray, Joe; Albertson, Donna G.

2002-01-01

The invention relates to the fabrication and use of biosensors comprising a plurality of optical fibers each fiber having attached to its "sensor end" biological "binding partners" (molecules that specifically bind other molecules to form a binding complex such as antibody-antigen, lectin-carbohydrate, nucleic acid-nucleic acid, biotin-avidin, etc.). The biosensor preferably bears two or more different species of biological binding partner. The sensor is fabricated by providing a plurality of groups of optical fibers. Each group is treated as a batch to attach a different species of biological binding partner to the sensor ends of the fibers comprising that bundle. Each fiber, or group of fibers within a bundle, may be uniquely identified so that the fibers, or group of fibers, when later combined in an array of different fibers, can be discretely addressed. Fibers or groups of fibers are then selected and discretely separated from different bundles. The discretely separated fibers are then combined at their sensor ends to produce a high density sensor array of fibers capable of assaying simultaneously the binding of components of a test sample to the various binding partners on the different fibers of the sensor array. The transmission ends of the optical fibers are then discretely addressed to detectors--such as a multiplicity of optical sensors. An optical signal, produced by binding of the binding partner to its substrate to form a binding complex, is conducted through the optical fiber or group of fibers to a detector for each discrete test. By examining the addressed transmission ends of fibers, or groups of fibers, the addressed transmission ends can transmit unique patterns assisting in rapid sample identification by the sensor.

High density array fabrication and readout method for a fiber optic biosensor

DOEpatents

Pinkel, D.; Gray, J.

1997-11-25

The invention relates to the fabrication and use of biosensors comprising a plurality of optical fibers each fiber having attached to its ``sensor end`` biological ``binding partners`` (molecules that specifically bind other molecules to form a binding complex such as antibody-antigen, lectin-carbohydrate, nucleic acid-nucleic acid, biotin-avidin, etc.). The biosensor preferably bears two or more different species of biological binding partner. The sensor is fabricated by providing a plurality of groups of optical fibers. Each group is treated as a batch to attach a different species of biological binding partner to the sensor ends of the fibers comprising that bundle. Each fiber, or group of fibers within a bundle, may be uniquely identified so that the fibers, or group of fibers, when later combined in an array of different fibers, can be discretely addressed. Fibers or groups of fibers are then selected and discretely separated from different bundles. The discretely separated fibers are then combined at their sensor ends to produce a high density sensor array of fibers capable of assaying simultaneously the binding of components of a test sample to the various binding partners on the different fibers of the sensor array. The transmission ends of the optical fibers are then discretely addressed to detectors--such as a multiplicity of optical sensors. An optical signal, produced by binding of the binding partner to its substrate to form a binding complex, is conducted through the optical fiber or group of fibers to a detector for each discrete test. By examining the addressed transmission ends of fibers, or groups of fibers, the addressed transmission ends can transmit unique patterns assisting in rapid sample identification by the sensor. 9 figs.

Handsome wants as handsome does: physical attractiveness and gender differences in revealed sexual preferences.

PubMed

McClintock, Elizabeth Aura

2011-01-01

In this article I evaluate the effect of physical attractiveness on young adults' sexual and romantic outcomes to reveal gender differences in acted preferences. Using data from the National Longitudinal Study of Adolescent Health (Add Health), a probability sample of young adults (n = 14,276), I investigate gender differences in desired sexual partner accumulation, relationship status, and timing of sexual intercourse. I find gender differences in sexual and romantic strategies consistent with those predicted by the double standard of sexuality and evolutionary theory. Specifically, compared to men, women pursue more committed relationships, fewer sexual partners, and delayed sexual intercourse.

A cut above the rest? Private anthropometrics in marriage markets.

PubMed

Wilson, Nicholas; Janicki, Martha

2016-12-01

A large body of economic research suggests that publicly observable anthropometric characteristics affect labor and marriage market outcomes. Private anthropometrics may not affect these outcomes. We examine male circumcision in marriage markets in Zambia. Our analysis reveals substantial variation across local marriage markets in circumcision prevalence relative to preference for circumcised partners, as well as excess aggregate demand for circumcised males. Regression estimates suggest a marriage market premium of approximately one-half to one year of additional schooling for matching with a partner of preferred anthropometric type in a local marriage market with excess demand for that anthropometric characteristic. Copyright © 2016 Elsevier B.V. All rights reserved.

Social and Foraging Behavior in Northwestern Crows (Corvus caurinus): Incorporating New Analyses and Technology

NASA Astrophysics Data System (ADS)

Xu, Carol K.

Both foraging and social decisions impact animals in important ways. We investigate the effects of age on foraging efficiency and sociality on Northwestern Crows (Corvus caurinus) at the beach, and use the growing field of social network analysis (SNA) to further examine social behavior in these birds. Specifically, we predict that 1) adults are more efficient foragers than juveniles, 2) juveniles interact with larger numbers of social partners than adults, 3) juveniles and adults prefer to associate with each other rather than within their own age classes, 4) crows are not associating randomly while on the beach (aka they have preferred social partners), and 5) pairs of individuals engaging in more affiliative behaviors with each other are less likely to also behave agonistically to one another, and vice versa. We also explore the uses of a remote radio detection system Encounternet by testing the validity of pilot data collected through this system against live observations conducted simultaneously. There is no effect of age on foraging efficiency; however, juveniles were found to interact with more total partners than adults, and most social associations occur between juveniles and adults. Our results also suggest crows are engaging in preferential social associations, though there is no evidence that affiliative pairs and agonistic pairs are mutually exclusive. Finally, it appears Encounternet can be useful for data collection when paired with live observations, as long as certain limitations are kept in mind. Our pilot study could be beneficial to anyone considering the use of remote detection tools in data collection on animals.

26 CFR 1.707-4 - Disguised sales of property to partnership; special rules applicable to guaranteed payments...

Code of Federal Regulations, 2013 CFR

2013-04-01

...; special rules applicable to guaranteed payments, preferred returns, operating cash flow distributions, and... payments, preferred returns, operating cash flow distributions, and reimbursements of preformation... distribution of partnership cash flow to a partner with respect to capital contributed to the partnership by...

26 CFR 1.707-4 - Disguised sales of property to partnership; special rules applicable to guaranteed payments...

Code of Federal Regulations, 2012 CFR

2012-04-01

...; special rules applicable to guaranteed payments, preferred returns, operating cash flow distributions, and... payments, preferred returns, operating cash flow distributions, and reimbursements of preformation... distribution of partnership cash flow to a partner with respect to capital contributed to the partnership by...

26 CFR 1.707-4 - Disguised sales of property to partnership; special rules applicable to guaranteed payments...

Code of Federal Regulations, 2011 CFR

2011-04-01

...; special rules applicable to guaranteed payments, preferred returns, operating cash flow distributions, and... payments, preferred returns, operating cash flow distributions, and reimbursements of preformation... distribution of partnership cash flow to a partner with respect to capital contributed to the partnership by...

26 CFR 1.707-4 - Disguised sales of property to partnership; special rules applicable to guaranteed payments...

Code of Federal Regulations, 2014 CFR

2014-04-01

...; special rules applicable to guaranteed payments, preferred returns, operating cash flow distributions, and... payments, preferred returns, operating cash flow distributions, and reimbursements of preformation... distribution of partnership cash flow to a partner with respect to capital contributed to the partnership by...

Retesting for genital Chlamydia trachomatis among visitors of a sexually transmitted infections clinic: randomized intervention trial of home- versus clinic-based recall.

PubMed

Götz, Hannelore M; Wolfers, Mireille E G; Luijendijk, Ad; van den Broek, Ingrid V F

2013-05-24

Reinfections of Chlamydia trachomatis (Ct) are common. In a two-armed intervention study at an urban STI clinic in the Netherlands, heterosexual Ct-positive visitors received an invitation for retesting after 4-5 months. Interventions were either home-based sampling by mailed test-kit, or clinic-based testing without appointment. Data collection included socio-demographic and sexual behavioural variables at first (T0) and repeat test (T1). Participation in retesting, prevalence and determinants of repeat infection among study participants are described and compared with findings from non-participants. Of the 216 visitors enrolled in the study, 75 accepted retesting (35%). The retest participation was 46% (50/109) in the home group versus 23% (25/107) in the clinic group (p = 0.001). Men were less often retested than women (15% versus 43%, p < 0.001). The overall chlamydia positivity rate at retest was 17.3% (13/75) compared to 12.4% seen at all visits at the STI clinic in 2011. Repeated infections were more frequent among non-Dutch than Dutch participants (27.0% versus 7.9%; p = 0.04) and in persons reporting symptoms (31.0% versus 7.0%; p = 0.01). Both untreated infections of current partners as well as unprotected sex with new partners contribute to repeated infections. The high rate of repeated infections indicates the need for interventions to increase retesting; improvement of partner-management and risk reduction counselling remain necessary. Home- based testing was more effective than clinic-based testing. However other strategies, including self-triage of patients, may also increase repeat testing rates and personal preferences should be taken into account.

Playing with Strangers: Which Shared Traits Attract Us Most to New People?

PubMed

Launay, Jacques; Dunbar, Robin I M

2015-01-01

Homophily, the tendency for individuals to associate with those who are most similar to them, has been well documented. However, the influence of different kinds of similarity (e.g. relating to age, music taste, ethical views) in initial preferences for a stranger have not been compared. In the current study, we test for a relationship between sharing a variety of traits (i.e. having different kinds of similarity) with a stranger and the perceived likeability of that stranger. In two online experiments, participants were introduced to a series of virtual partners with whom they shared traits, and subsequently carried out activities designed to measure positivity directed towards those partners. Greater numbers of shared traits led to linearly increasing ratings of partner likeability and ratings on the Inclusion of Other in Self scale. We identified several consistent predictors of these two measures: shared taste in music, religion and ethical views. These kinds of trait are likely to be judged as correlates of personality or social group, and may therefore be used as proxies of more in-depth information about a person who might be socially more relevant.

Early social deprivation impairs pair bonding and alters serum corticosterone and the NAcc dopamine system in mandarin voles.

PubMed

Yu, Peng; An, Shucheng; Tai, Fadao; Wang, Jianli; Wu, Ruiyong; Wang, Bo

2013-12-01

Early life stress has a long-term negative impact on emotion, learning, memory and adult sexual behavior, and these deficits most likely impair pair bonding. Here, we investigated whether early social deprivation (ED) affects the formation of pair bonds in socially monogamous mandarin voles (Microtus mandarinus). In a partner preference test (PPT), ED-reared adult females and males did not show a preference for their partner, spent more time exploring the cage of an unfamiliar animal and directed high levels of aggression toward unfamiliar animals. In social interaction test, ED increased exploring behavior only in females, but increased movement around the partner and reduced inactivity in both males and females. Three days of cohabitation did not alter serum corticosterone levels in ED-reared males, but increased corticosterone levels in males that received bi-parental care (PC). Interestingly, serum corticosterone levels in ED- and PC-reared females declined after cohabitation. ED significantly increased basal serum corticosterone levels in males, but had no effect on females. ED significantly up-regulated the levels of dopamine and the mRNA expression of dopamine 1-type receptor (D1R) in the nucleus accumbens (NAcc) in females and males. ED suppressed dopamine 2-type receptor mRNA (D2R) expression in females, but increased this in males. After three days of cohabitation, levels of D1R mRNA and D2R mRNA expression changed in opposite directions in PC-reared voles, but in the same direction in ED-reared males, and only the expression of D2R mRNA increased in ED-reared females. Our results indicate that early social deprivation inhibits pair bonding at adulthood. This inhibition is possibly associated with sex-specific alterations in serum corticosterone, levels of dopamine and mRNA expression of two types of dopamine receptors in the NAcc. Copyright © 2013 Elsevier Ltd. All rights reserved.

Gendered career considerations consolidate from the start of medical education.

PubMed

Alers, Margret; Verdonk, Petra; Bor, Hans; Hamberg, Katarina; Lagro-Janssen, Antoine

2014-09-13

To explore changes in specialty preferences and work-related topics during the theoretical phase of Dutch medical education and the role of gender. A cohort of medical students at Radboudumc, the Netherlands, was surveyed at start (N=612, 69.1% female) and after three years (N=519, 69.2% female), on specialty preferences, full-time or part-time work, motivational factors, and work-life issues. Chi square tests were performed to analyze gender-differences, and logistic regression to explore the influence of gender on considerations. A total of 214 female and 78 male students completed both surveys. After three years, the male students remained highly interested in surgery, but the female students increasingly preferred gynecology. These initial preferences were predictive. Four out of five male students versus three out of five female students continued to show a full-time preference. Women increasingly preferred part-time work. After three years, the combination of work, care, and patient contact motivated female students more, whereas salary remained more important to male students. Female students indicated that their future careers would influence their family life; male students assumed having a family would only affect their partners' careers. Against an international background of the feminization of medicine, our study shows that career considerations are reinforced early in medical studies. Women prefer to work fewer hours and anticipate care tasks more often. Students' preferences reflect Dutch cultural norms about working men and women. Therefore, guidance in choice-making much earlier in medical education can create opportunities.

Affective influences on partner choice: role of mood in social decisions.

PubMed

Forgas, J P

1991-11-01

Does mood influence our information search and decision strategies when choosing a partner? In Experiment 1 (N = 60), sad Ss preferred rewarding to competent partners and remembered information supporting that choice better. In Experiment 2 (N = 96), mood effects on information selectivity, decision speed, and processing strategy in partner choices were found. In Experiment 3 (N = 42), a computerized stimulus presentation revealed mood-induced differences in the latency, self-exposure, and eventual recall of interpersonal information. These results are interpreted as evidence for mood-induced selectivity in information search and decision strategies when making realistic partner choices. The implications of the findings for research on interpersonal relations and for contemporary affect-cognition theories are considered.

Homogamy and imprinting-like effect on mate choice preference for body height in the current Japanese population.

PubMed

Seki, Motohide; Ihara, Yasuo; Aoki, Kenichi

2012-01-01

Homogamy for body height has been repeatedly documented in Western societies. Nevertheless, the underlying mechanism is unclear and the reasons for its apparent absence in non-Western societies remain unexplained. This study investigates spousal correlation and mate preference for height in the Japanese population. This study analyses self-reported data on the height of individuals, their parents and their ideal marriage partners, collected by a series of questionnaires on university students. In contrast to a previous study, this study found a significant positive correlation between the heights of Japanese spouses, after controlling for age. It also found a positive correlation between the heights of subjects and of their ideal partners, suggesting that an individual's self-referent preference may contribute to the observed homogamy for height. However, a subject's preference is also influenced by the height of his/her opposite-sex--but not same-sex--parent, where this effect is more prominent in male subjects. This study shows that homogamy for body height is present in the current Japanese population and that it may in part result from an individual's preference. It also indicates a possible role of a sexual imprinting-like mechanism in human mate choice.

Sexual differentiation of pheromone processing: Links to male-typical mating behavior and partner preference

PubMed Central

Baum, Michael J.

2009-01-01

Phoenix et al. (Phoenix et al., 1959) were the first to propose an essential role of fetal testosterone exposure in the sexual differentiation of the capacity of mammals to display male-typical mating behavior. In one experiment control male and female guinea pigs as well as females given fetal testosterone actually showed equivalent levels of mounting behavior when gonadectomized and given ovarian steroids prior to adult tests with a stimulus female. This finding is discussed in the context of a recent, high-profile paper by Kimchi and co-workers (Kimchi et al., 2007) arguing that female rodents possess the circuits that control the expression of male-typical mating behavior and that their function is normally suppressed in this sex by pheromonal inputs that are processed via the vomeronasal organ (VNO)—accessory olfactory nervous system. In another Phoenix et al. experiment, significantly more mounting behavior was observed in male guinea pigs and in females given fetal testosterone than in control females following adult gonadectomy and treatment with testosterone. Literature is reviewed that attempts to link sex differences in the anatomy and function of the accessory versus the main olfactory projections to the amygdala and hypothalamus to parallel sex differences in courtship behaviors, including sex partner preference, as well as the capacity to display mounting behavior. PMID:19446074

Engaging in paced mating, but neither exploratory, anti-anxiety, nor social behavior, increases 5α-reduced progestin concentrations in midbrain, hippocampus, striatum, and cortex

PubMed Central

Frye, Cheryl A; Paris, Jason J; Rhodes, Madeline E

2010-01-01

Sequential actions of 17β-estradiol (E2) and progesterone (P4) in the hypothalamus and the P4 metabolite, 5α-pregnan-3α-ol-20-one (3α,5α-THP), in the midbrain ventral tegmental area (VTA) respectively mediate the initiation and intensity of lordosis of female rats and mayalso modulate anxiety and social behaviors, through actions in these, and/or other brain regions. Biosynthesis of E2, P4, and 3α,5α-THP can also occur in brain, independent of peripheral gland secretion, in response to environmental/behavioral stimuli. The extent to which engaging in tasks related to reproductive behaviors and/or mating increased E2 or progestin concentrations in brain was investigated. In Experiment 1, proestrous rats were randomly assigned to be tested in individual tasks, including the open field, elevated plus maze, partner preference, social interaction, or no test control, in conjunction with paced mating or no mating. Engaging in paced mating, but not other behaviors, significantly increased dihydroprogesterone (DHP) and 3α,5α-THP levels in midbrain, hippocampus, striatum, and cortex. In Experiment 2, proestrous rats were tested in the combinations of the above tasks (open field and elevated plus maze, partner preference, and social interaction) with or without paced mating. As in Experiment 1, only engaging in paced mating increased DHP and 3α,5α-THP concentrations in midbrain, hippocampus, striatum, and cortex. Thus, paced mating enhances concentrations of 5α-reduced progestins in brain areas associated with reproduction (midbrain), as well as exploration/anxiety (hippocampus and striatum) and social behavior (cortex). PMID:17379660

The role of the dorsolateral tegmentum in the control of male sexual behavior: a reevaluation.

PubMed

Romero-Carbente, J C; Camacho, F J; Paredes, R G

2006-06-30

The medial preoptic area/anterior hypothalamus (MPOA/AH) plays a key role in the control of male sexual behavior. Independently of the type, MPOA/AH lesions permanently eliminate male sexual behavior in the rat. The MPOA/AH projects among other structures to the dorsolateral tegmentum (DLT). Bilateral electrolytic lesions of the DLT or the unilateral electrolytic destruction of the MPOA/HA combined with a contralateral electrolytic lesion of the DLT eliminate male sexual behavior. In the present experiment, we evaluated if neurotoxic lesions of the DLT produce the same behavioral deficits as those observed after electrolytic lesions. This would allow us to evaluate if neurons of the DLT or the fibers passing through this area are important in the control of male sexual behavior. To this aim, sexually experience male rats were tested for socio-sexual behavior, partner preference and motor execution in order to determine if the possible behavioral changes could be attributed to alterations in sexual motivation or motor execution. One week after the bilateral DLT lesions the animals were evaluated in the same behavioral tests. The lesions were identified by glial fibrillary acidic protein (GFAP) and neuronal nuclear protein (Neu-N) immunohistochemistry. No significant consistent effects upon sexual behavior were observed in any of the groups, including the group with clear bilateral damage of the DLT. A reduction in the percentage of males displaying ejaculation in the first post-lesion test was observed for all groups injected with quinolinic acid. No effects upon partner preference or motor coordination were observed after the lesion in any of the groups. The lack of effect of DLT neurotoxic lesions upon mating suggests that neurons of this structure are not involved in the control of male sexual behavior.

Student learning outcomes and attitudes when biotechnology lab partners are of different academic levels.

PubMed

Miller, Heather B; Witherow, D Scott; Carson, Susan

2012-01-01

The North Carolina State University Biotechnology Program offers laboratory-intensive courses to both undergraduate and graduate students. In "Manipulation and Expression of Recombinant DNA," students are separated into undergraduate and graduate sections for the laboratory, but not the lecture, component. Evidence has shown that students prefer pairing with someone of the same academic level. However, retention of main ideas in peer learning environments has been shown to be greater when partners have dissimilar abilities. Therefore, we tested the hypothesis that there will be enhanced student learning when lab partners are of different academic levels. We found that learning outcomes were met by both levels of student, regardless of pairing. Average undergraduate grades on every assessment method increased when undergraduates were paired with graduate students. Many of the average graduate student grades also increased modestly when graduate students were paired with undergraduates. Attitudes toward working with partners dramatically shifted toward favoring working with students of different academic levels. This work suggests that offering dual-level courses in which different-level partnerships are created does not inhibit learning by students of different academic levels. This format is useful for institutions that wish to offer "boutique" courses in which student enrollment may be low, but specialized equipment and faculty expertise are needed.

Student Learning Outcomes and Attitudes When Biotechnology Lab Partners Are of Different Academic Levels

PubMed Central

Miller, Heather B.; Witherow, D. Scott; Carson, Susan

2012-01-01

The North Carolina State University Biotechnology Program offers laboratory-intensive courses to both undergraduate and graduate students. In “Manipulation and Expression of Recombinant DNA,” students are separated into undergraduate and graduate sections for the laboratory, but not the lecture, component. Evidence has shown that students prefer pairing with someone of the same academic level. However, retention of main ideas in peer learning environments has been shown to be greater when partners have dissimilar abilities. Therefore, we tested the hypothesis that there will be enhanced student learning when lab partners are of different academic levels. We found that learning outcomes were met by both levels of student, regardless of pairing. Average undergraduate grades on every assessment method increased when undergraduates were paired with graduate students. Many of the average graduate student grades also increased modestly when graduate students were paired with undergraduates. Attitudes toward working with partners dramatically shifted toward favoring working with students of different academic levels. This work suggests that offering dual-level courses in which different-level partnerships are created does not inhibit learning by students of different academic levels. This format is useful for institutions that wish to offer “boutique” courses in which student enrollment may be low, but specialized equipment and faculty expertise are needed. PMID:22949428

Major histocompatibility complex class II compatibility, but not class I, predicts mate choice in a bird with highly developed olfaction.

PubMed

Strandh, Maria; Westerdahl, Helena; Pontarp, Mikael; Canbäck, Björn; Dubois, Marie-Pierre; Miquel, Christian; Taberlet, Pierre; Bonadonna, Francesco

2012-11-07

Mate choice for major histocompatibility complex (MHC) compatibility has been found in several taxa, although rarely in birds. MHC is a crucial component in adaptive immunity and by choosing an MHC-dissimilar partner, heterozygosity and potentially broad pathogen resistance is maximized in the offspring. The MHC genotype influences odour cues and preferences in mammals and fish and hence olfactory-based mate choice can occur. We tested whether blue petrels, Halobaena caerulea, choose partners based on MHC compatibility. This bird is long-lived, monogamous and can discriminate between individual odours using olfaction, which makes it exceptionally well suited for this analysis. We screened MHC class I and II B alleles in blue petrels using 454-pyrosequencing and quantified the phylogenetic, functional and allele-sharing similarity between individuals. Partners were functionally more dissimilar at the MHC class II B loci than expected from random mating (p = 0.033), whereas there was no such difference at the MHC class I loci. Phylogenetic and non-sequence-based MHC allele-sharing measures detected no MHC dissimilarity between partners for either MHC class I or II B. Our study provides evidence of mate choice for MHC compatibility in a bird with a high dependency on odour cues, suggesting that MHC odour-mediated mate choice occurs in birds.

Potential point of care tests (POCTs) for maternal health in Peru, perspectives of pregnant women and their partners

PubMed Central

2014-01-01

Background Globally, no qualitative studies have explored the perspectives of women and their partners about the integration of technology – and specifically diagnostic testing technologies – into antenatal care. The study objective was to describe the demand side for pregnancy-related diagnostic tests from the perspective of Peruvian consumers, including female and male community members, by engaging participants about their awareness of and care-seeking for pregnancy-related diagnostic tests and their preferred characteristics and testing conditions for pregnancy-related point-of-care diagnostic tests (POCTs). Methods Sixty-seven mothers and fathers of children under one from the peri-urban coast and the peri-urban and rural highlands and jungle of Peru participated in ten focus groups. Results Participants think that pregnancy-related diagnostic tests are important and they and their fellow community members are committed to ensuring that pregnant women receive the tests they need. Participants expressed clear demands for pregnancy-related POCTs, including important characteristics for the tests themselves (certification, rapid, reliable results) and for test implementation (well-trained, personable good communicators as test administrators at well-equipped, convenient testing sites). Participants emphasized the importance of short waiting times and explained that many people have some ability to pay for POCTs, particularly if they are innovative, rapid or multiplex. Conclusions Engaging future POCT users as consumers who are able to make key decisions about the development and implementation of pregnancy-related POCTs is valuable and informative. PMID:24433514

Pacific Partners Wargame Analysis

DTIC Science & Technology

2014-09-01

such as medical qualifications and malpractice considerations, can be explored as part of interoperability. Partner nations are motivated to...prefers a medical research focus. Subsuming medical under HA/DR attempts to minimize those differences. There were dissenting views on the proposed...positive view of USARPAC engagement activities, they were still able to develop ideas for ways to improve engagement activities by modifying or

Social selection is a powerful explanation for prosociality.

PubMed

Nesse, Randolph M

2016-01-01

Cultural group selection helps explain human cooperation, but social selection offers a complementary, more powerful explanation. Just as sexual selection shapes extreme traits that increase matings, social selection shapes extreme traits that make individuals preferred social partners. Self-interested partner choices create strong and possibly runaway selection for prosocial traits, without requiring group selection, kin selection, or reciprocity.

Allocation of Resources to Collaborators and Free-Riders in 3-Year-Olds

ERIC Educational Resources Information Center

Melis, Alicia P.; Altrichter, Kristin; Tomasello, Michael

2013-01-01

Recent studies have shown that in situations where resources have been acquired collaboratively, children at around 3 years of age share mostly equally. We investigated 3-year-olds' sharing behavior with a collaborating partner and a free-riding partner who explicitly expressed her preference not to collaborate. Children shared more equally with…

The Effects of Premarital Heterosexual and Homosexual Experience on Dating and Marriage Desirability.

ERIC Educational Resources Information Center

Williams, John D.; Jacoby, Arthur P.

1989-01-01

Surveyed 365 college students to investigate their attitudes toward the effects of past sexual behavior, both heterosexual and homosexual, on one's acceptability as a dating or marriage partner. Results showed that both men and women prefer partners without previous coital or oral heterosexual experience, and both strongly rejected those with any…

Differential processing of social chemosignals obtained from potential partners in regards to gender and sexual orientation.

PubMed

Lübke, Katrin T; Hoenen, Matthias; Pause, Bettina M

2012-03-17

On an individual level, human body odors carry information about whether a person is an eligible mate. The current studies investigate if body odors also transmit information about individuals being potential partners in more general terms, namely in regards to gender and sexual orientation. In study 1, 14 gay and 14 heterosexual men were presented with body odors obtained from potential partners (gay male and heterosexual female body odors, respectively) and heterosexual male body odor as a control. In study 2, 14 lesbian and 14 heterosexual women were presented with lesbian female and heterosexual male body odors representing body odors of potential partners, and heterosexual female body odor as a control. Central nervous processing was analyzed using chemosensory event-related potentials and current source density analysis (64-channel EEG recording). Gay and heterosexual men responded with shorter P2 latencies to the body odors of their preferred sexual partners, and lesbian women responded with shorter P2 latencies to body odors of their preferred gender. In response to heterosexual male body odors, lesbian women displayed the most pronounced P3 amplitude, and distinct neuronal activation in medial frontal and parietal neocortical areas. A similar pattern of neuronal activation was observed in gay men when presented with heterosexual male body odor. Both the early processing advantage (P2) for desirable partners' body odors as well as the enhanced evaluative processing (P3, CSD) of undesirable partners' body odors suggest that human body odors indeed carry information about individuals being potential partners in terms of gender and sexual orientation. Copyright © 2011 Elsevier B.V. All rights reserved.

The association between discontinuing hormonal contraceptives and wives’ marital satisfaction depends on husbands’ facial attractiveness

PubMed Central

Russell, V. Michelle; McNulty, James K.; Baker, Levi R.; Meltzer, Andrea L.

2014-01-01

How are hormonal contraceptives (HCs) related to marital well-being? Some work suggests HCs suppress biological processes associated with women’s preferences for partner qualities reflective of genetic fitness, qualities that may be summarized by facial attractiveness. Given that realizing such interpersonal preferences positively predicts relationship satisfaction, any changes in women’s preferences associated with changes in their HC use may interact with partner facial attractiveness to predict women’s relationship satisfaction. We tested this possibility using two longitudinal studies of 118 newlywed couples. Trained observers objectively rated husbands’ facial attractiveness in both studies. In study 1, wives reported their marital satisfaction every 6 mo for 4 y and then reported the history of their HC use for their relationship. In study 2, wives reported whether they were using HCs when they met their husbands and then their marital satisfaction and HC use every 4 mo for up to three waves. In both studies, and in an analysis that combined the data from both studies, wives who were using HCs when they formed their relationship with their husband were less satisfied with their marriage when they discontinued HCs if their husband had a relatively less attractive face, but more satisfied if their husband had a relatively more attractive face. Beginning HCs demonstrated no consistent associations with marital satisfaction. Incongruency between HC use at relationship formation and current HC use was negatively associated with sexual satisfaction, regardless of husbands’ facial attractiveness. These findings suggest that HC use may have unintended implications for women’s close relationships. PMID:25404285

The association between discontinuing hormonal contraceptives and wives' marital satisfaction depends on husbands' facial attractiveness.

PubMed

Russell, V Michelle; McNulty, James K; Baker, Levi R; Meltzer, Andrea L

2014-12-02

How are hormonal contraceptives (HCs) related to marital well-being? Some work suggests HCs suppress biological processes associated with women's preferences for partner qualities reflective of genetic fitness, qualities that may be summarized by facial attractiveness. Given that realizing such interpersonal preferences positively predicts relationship satisfaction, any changes in women's preferences associated with changes in their HC use may interact with partner facial attractiveness to predict women's relationship satisfaction. We tested this possibility using two longitudinal studies of 118 newlywed couples. Trained observers objectively rated husbands' facial attractiveness in both studies. In study 1, wives reported their marital satisfaction every 6 mo for 4 y and then reported the history of their HC use for their relationship. In study 2, wives reported whether they were using HCs when they met their husbands and then their marital satisfaction and HC use every 4 mo for up to three waves. In both studies, and in an analysis that combined the data from both studies, wives who were using HCs when they formed their relationship with their husband were less satisfied with their marriage when they discontinued HCs if their husband had a relatively less attractive face, but more satisfied if their husband had a relatively more attractive face. Beginning HCs demonstrated no consistent associations with marital satisfaction. Incongruency between HC use at relationship formation and current HC use was negatively associated with sexual satisfaction, regardless of husbands' facial attractiveness. These findings suggest that HC use may have unintended implications for women's close relationships.

Facialmetric similarities mediate mate choice: sexual imprinting on opposite-sex parents

PubMed Central

Bereczkei, Tamas; Hegedus, Gabor; Hajnal, Gabor

2008-01-01

A retraction has been published Former studies have suggested that imprinting-like processes influence the shaping of human mate preferences. In this study, we provide more direct evidence for assessing facial resemblance between subjects' partner and subjects' parents. Fourteen facial proportions were measured on 312 adults belonging to 52 families, and the correlations between family members were compared with those of pairs randomly selected from the population. Spouses proved to be assortatively mated in the majority of measured facial proportions. Significant correlations have been found between the young men and their partner's father (but not his mother), especially on facial proportions belonging to the central area of the face. Women also showed resemblance to their partner's mother (but not to their father) in the facial characteristics of their lower face. Replicating our previous studies, facial photographs of participants were also matched by independent judges who ascribed higher resemblance between partners, and subjects and their partners' opposite-sex parents, compared with controls. Our results support the sexual imprinting hypothesis which states that children shape a mental template of their opposite-sex parents and search for a partner who resembles that perceptual schema. The fact that only the facial metrics of opposite-sex parents showed resemblance to the partner's face tends to rule out the role of familiarity in shaping mating preferences. Our findings also reject several other rival hypotheses. The adaptive value of imprinting-related human mating is discussed, and a hypothesis is made of why different facial areas are involved in males' and females' search for resemblance. PMID:18765339

Social bonds in the dispersing sex: partner preferences among adult female chimpanzees.

PubMed

Foerster, Steffen; McLellan, Karen; Schroepfer-Walker, Kara; Murray, Carson M; Krupenye, Christopher; Gilby, Ian C; Pusey, Anne E

2015-07-01

In most primate societies, strong and enduring social bonds form preferentially among kin, who benefit from cooperation through direct and indirect fitness gains. Chimpanzees, Pan troglodytes , differ from most species by showing consistent female-biased dispersal and strict male philopatry. In most East African populations, females tend to forage alone in small core areas and were long thought to have weak social bonds of little biological significance. Recent work in some populations is challenging this view. However, challenges remain in quantifying the influence of shared space use on association patterns, and in identifying the drivers of partner preferences and social bonds. Here, we use the largest data set on wild chimpanzee behaviour currently available to assess potential determinants of female association patterns. We quantify pairwise similarities in ranging, dyadic association and grooming for 624 unique dyads over 38 years, including 17 adult female kin dyads. To search for social preferences that could not be explained by spatial overlap alone, we controlled for expected association based on pairwise kernel volume intersections of core areas. We found that association frequencies among females with above-average overlap correlated positively with grooming rates, suggesting that associations reflected social preferences in these dyads. Furthermore, when available, females preferred kin over nonkin partners for association and grooming, and variability was high among nonkin dyads. While variability in association above and below expected values was high, on average, nonkin associated more frequently if they had immature male offspring, while having female offspring had the opposite effect. Dominance rank, an important determinant of reproductive success at Gombe, influenced associations primarily for low-ranking females, who associated preferentially with each other. Our findings support the hypothesis that female chimpanzees form well-differentiated social relationships that are of potential adaptive value to females and their offspring.

Choices Which Change Life Satisfaction: Similar Results for Australia, Britain and Germany

ERIC Educational Resources Information Center

Headey, Bruce; Muffels, Ruud; Wagner, Gert G.

2013-01-01

Using data from national socio-economic panel surveys in Australia, Britain and Germany, this paper analyzes the effects of individual preferences and choices on subjective well-being (SWB). It is shown that, in all three countries, preferences and choices relating to life goals/values, partner's personality, hours of work, social participation…

SDN-POA volume, sexual behavior, and partner preference of male rats affected by perinatal treatment with ATD.

PubMed

Houtsmuller, E J; Brand, T; de Jonge, F H; Joosten, R N; van de Poll, N E; Slob, A K

1994-09-01

The present study investigated 1) the importance of the aromatization process during the perinatal period for the development of the sexually dimorphic nucleus in the preoptic area of the hypothalamus (SDN-POA) of male rats, and 2) the relationship between SDN-POA volume and parameters of masculinization in male rats that were treated perinatally with the aromatase-inhibitor ATD. Males were treated with ATD either prenatally or pre- and neonatally, or with the vehicle. Masculine sexual behavior and partner preference were investigated in adulthood. Thereafter, animals were sacrificed and SDN-POA volume was measured. The SDN-POA volume was reduced in both the prenatally and the pre- and neonatally treated group, with a larger reduction in the latter than in the former group. Combined pre- and neonatal ATD treatment resulted in reduced frequency of mounts, intromissions, and ejaculations, as well as a reduced preference for a female over a male. The SDN-POA size was significantly and positively correlated with frequency of masculine sexual behavior, as well as preference for a female over a male.

Prenatal administration of letrozole reduces SDN and SCN volume and cell number independent of partner preference in the male rat.

PubMed

Olvera-Hernández, Sandra; Tapia-Rodríguez, Miguel; Swaab, Dick F; Fernández-Guasti, Alonso

2017-03-15

During development, the exposure to testosterone, and its conversion to estradiol by an enzyme complex termed aromatase, appears to be essential in adult male rats for the expression of typical male sexual behavior and female-sex preference. Some hypothalamic areas are the supposed neural bases of sexual preference/orientation; for example, male-oriented rams have a reduced volume of the sexually dimorphic nucleus (oSDN), while in homosexual men this nucleus does not differ from that of heterosexual men. In contrast, homosexual men showed a larger number of vasopressinergic cells in the suprachiasmatic nucleus (SCN). Interestingly, male rats perinatally treated with an aromatase inhibitor, 1,4,6-androstatriene-3,17-dione (ATD), also showed bisexual preference and an increased number of vasopressinergic neurons in the SCN. However, this steroidal aromatase inhibitor has affinity for all three steroid receptors. Recently, we reported that the prenatal administration of the selective aromatase inhibitor, letrozole, produced a subpopulation of males with same-sex preference. The aim of this study was to compare the volume and number of cells of the SDN and SCN (the latter nucleus was immunohistochemically stained for vasopressin) between males treated with letrozole with same-sex preference, males treated with letrozole with female preference and control males with female preference. Results showed that all males prenatally treated with letrozole have a reduced volume and estimated cell number in the SDN and SCN, independent of their partner preference. These results indicate that the changes in these brain areas are not related to sexual preference, but rather to the effects of letrozole. The divergent results may be explained by species differences as well as by the critical windows during which the aromatase inhibitor was administered. Copyright © 2017 Elsevier Inc. All rights reserved.

DOE Office of Scientific and Technical Information (OSTI.GOV)

None

By working with builder partners on test homes, researchers from the U.S. Department of Energy’s Building America program can vet whole-house building strategies and avoid potential unintended consequences of implementing untested solution packages on a production scale. To support this research, Building America team Consortium for Advanced Residential Buildings (CARB) partnered with Preferred Builders Inc. on a high-performance test home in Old Greenwich, Connecticut. The philosophy and science behind the 2,700 ft2 “Performance House” was based on the premise that homes should be safe, healthy, comfortable, durable, efficient, and adaptable to the needs of homeowners. The technologies and strategies usedmore » in the “Performance House” were best practices rather than cutting edge, with a focus on simplicity in construction, maintenance, and operation. Achieving 30% source energy savings compared with a home built to the 2009 International Energy Conservation Code in the cold climate zone requires that nearly all components and systems be optimized. Careful planning and design are critical. The end result was a DOE Challenge Home that achieved a Home Energy Rating System (HERS) Index Score of 20 (43 without photovoltaics [PV]).« less

DOE Office of Scientific and Technical Information (OSTI.GOV)

Not Available

By working with builder partners on test homes, researchers from the U.S. Department of Energy's Building America program can vet whole-house building strategies and avoid potential unintended consequences of implementing untested solution packages on a production scale. To support this research, Building America team Consortium for Advanced Residential Buildings (CARB) partnered with Preferred Builders Inc. on a high-performance test home in Old Greenwich, Connecticut. The philosophy and science behind the 2,700 ft2 "Performance House" was based on the premise that homes should be safe, healthy, comfortable, durable, efficient, and adaptable to the needs of homeowners. The technologies and strategies usedmore » in the "Performance House" were best practices rather than cutting edge, with a focus on simplicity in construction, maintenance, and operation. Achieving 30% source energy savings compared with a home built to the 2009 International Energy Conservation Code in the cold climate zone requires that nearly all components and systems be optimized. Careful planning and design are critical. The end result was a DOE Challenge Home that achieved a Home Energy Rating System (HERS) Index Score of 20 (43 without photovoltaics [PV]).« less

Acceptability, Knowledge, Beliefs, and Partners as Determinants of Zambian Men's Readiness to Undergo Medical Male Circumcision

PubMed Central

Jones, Deborah; Cook, Ryan; Arheart, Kris; Redding, Colleen A.; Zulu, Robert; Castro, Jose; Weiss, Stephen M.

2013-01-01

There is limited information about the influence of partners on medical male circumcision (MMC) uptake. This study aimed to evaluate attitudes, knowledge, and preferences about MMC among men and their partners, and their relative impact on male readiness to undergo the MMC procedure. Male participants (n = 354) and their partners (n = 273) were recruited from community health centers in Lusaka, Zambia. Men reported their readiness to undergo MMC, and both men and women were assessed regarding their attitudes and knowledge regarding MMC. Men who had discussed MMC with their partners, those who endorsed MMC for HIV risk reduction, and those viewing MMC as culturally acceptable reported increased readiness to undergo MMC. Additionally, endorsement of MMC by female partners was associated with increased men’s readiness. Results support promotion of cultural acceptability of MMC, and efforts to increase MMC uptake may benefit from incorporating partners in the decision making process. PMID:23757123

Reproductive strategy, sexual development and attraction to facial characteristics

PubMed Central

Cornwell, R. Elisabeth; Law Smith, Miriam J; Boothroyd, Lynda G; Moore, Fhionna R; Davis, Hasker P; Stirrat, Michael; Tiddeman, Bernard; Perrett, David I

2006-01-01

Sexual reproduction strategies vary both between and within species in the level of investment in offspring. Life-history theories suggest that the rate of sexual maturation is critically linked to reproductive strategy, with high investment being associated with few offspring and delayed maturation. For humans, age of puberty and age of first sex are two developmental milestones that have been associated with reproductive strategies. Stress during early development can retard or accelerate sexual maturation and reproduction. Early age of menarche is associated with absence of younger siblings, absence of a father figure during early life and increased weight. Father absence during early life is also associated with early marriage, pregnancy and divorce. Choice of partner characteristics is critical to successful implementation of sexual strategies. It has been suggested that sexually dimorphic traits (including those evident in the face) signal high-quality immune function and reproductive status. Masculinity in males has also been associated with low investment in mate and offspring. Thus, women's reproductive strategy should be matched to the probability of male investment, hence to male masculinity. Our review leads us to predict associations between the rate of sexual maturation and adult preferences for facial characteristics (enhanced sexual dimorphism and attractiveness). We find for men, engaging in sex at an early age is related to an increased preference for feminized female faces. Similarly, for women, the earlier the age of first sex the greater the preference for masculinity in opposite-sex faces. When we controlled sexual dimorphism in male faces, the speed of sexual development in women was not associated with differences in preference for male facial attractiveness. These developmental influences on partner choice were not mediated by self-rated attractiveness or parental relationships. We conclude that individuals assort in preferences based on the rapidity of their sexual development. Fast developing individuals prefer opposite-sex partners with an increased level of sexually dimorphic facial characteristics. PMID:17118929

Reproductive strategy, sexual development and attraction to facial characteristics.

PubMed

Cornwell, R Elisabeth; Law Smith, Miriam J; Boothroyd, Lynda G; Moore, Fhionna R; Davis, Hasker P; Stirrat, Michael; Tiddeman, Bernard; Perrett, David I

2006-12-29

Sexual reproduction strategies vary both between and within species in the level of investment in offspring. Life-history theories suggest that the rate of sexual maturation is critically linked to reproductive strategy, with high investment being associated with few offspring and delayed maturation. For humans, age of puberty and age of first sex are two developmental milestones that have been associated with reproductive strategies. Stress during early development can retard or accelerate sexual maturation and reproduction. Early age of menarche is associated with absence of younger siblings, absence of a father figure during early life and increased weight. Father absence during early life is also associated with early marriage, pregnancy and divorce. Choice of partner characteristics is critical to successful implementation of sexual strategies. It has been suggested that sexually dimorphic traits (including those evident in the face) signal high-quality immune function and reproductive status. Masculinity in males has also been associated with low investment in mate and offspring. Thus, women's reproductive strategy should be matched to the probability of male investment, hence to male masculinity. Our review leads us to predict associations between the rate of sexual maturation and adult preferences for facial characteristics (enhanced sexual dimorphism and attractiveness). We find for men, engaging in sex at an early age is related to an increased preference for feminized female faces. Similarly, for women, the earlier the age of first sex the greater the preference for masculinity in opposite-sex faces. When we controlled sexual dimorphism in male faces, the speed of sexual development in women was not associated with differences in preference for male facial attractiveness. These developmental influences on partner choice were not mediated by self-rated attractiveness or parental relationships. We conclude that individuals assort in preferences based on the rapidity of their sexual development. Fast developing individuals prefer opposite-sex partners with an increased level of sexually dimorphic facial characteristics.

A comparison of workload and morbidity recording by partners in a group practice

PubMed Central

Carney, T. A.

1980-01-01

A survey was carried out of one year's workload and morbidity recording by three partners in a semi-rural teaching practice. Despite an equal workload of patient contacts there were shown to be statistically significant differences between the partners in the number of return consultations, the sex and age of the patients seen, and in nine diagnostic groups. The statistically significant differences in the latter groups appear to have been caused by variations in policy for recalling patients and the different sex and age groups of the patients consulting the partners, not by diagnostic preferences. A lack of previous experience affected one group. The partners did not find the discussion of these differences to be threatening. PMID:7441620

Building Partner Capacity

DTIC Science & Technology

2015-02-01

understanding, partnering, and strategic partnerships using British models, which this author finds a useful supplement to U.S. doctrine. Chapter 5... dietary preferences.”24 How to gain or lose in this marketplace is determined by imagination and innovation as well as others’ successes and failures...consideration. • Provide capabilities that complement or supplement United States capabilities. Actors of concern are countries or organizations that

Ventromedial hypothalamic nucleus lesions disrupt olfactory mate recognition and receptivity in female ferrets

PubMed Central

Robarts, Daniel W.; Baum, Michael J.

2008-01-01

Previous research showed that ferrets of both sexes rely on the perception of conspecifics’ body odors to identify and motivate approach towards opposite-sex mating partners, and exposure to male body odors stimulated Fos expression in an olfactory projection circuit of female, but not male, ferrets that terminates in the ventromedial hypothalamic nucleus (VMH). We asked whether the female-typical preference of ferrets to approach male as opposed to female body odors in Y-maze tests would be disrupted by VMH lesions. Sexually experienced female ferrets were ovo-hysterectomized prior to receiving bilateral electrolytic lesions of the VMH, the preoptic area/anterior hypothalamus (POA/AH) or a sham operation. Subsequently, while receiving estradiol benzoate, females that received either complete or partial bilateral lesions of the VMH approached volatile odors from an anesthetized male on significantly fewer trials than females given POA/AH lesions or a sham operation. Both groups of ferrets with VMH lesion damage reliably discriminated between volatile anal scents as well as urinary odors from the 2 sexes in home cage habituation/dishabituation tests, suggesting that their odor-based sex discrimination remained intact. Females with complete bilateral VMH lesions showed significantly lower acceptance of neck gripping from a stimulus male (receptivity) and more aggression towards the male than all other groups of female subjects. Estrogen-sensitive neurons in the VMH appear to play a central role in female-typical neural processing of odor inputs leading to a preference to seek out a male sex partner, in addition to facilitating females’ sexual receptivity. PMID:17011561

Sex differences in the implications of partner physical attractiveness for the trajectory of marital satisfaction.

PubMed

Meltzer, Andrea L; McNulty, James K; Jackson, Grace L; Karney, Benjamin R

2014-03-01

Do men value physical attractiveness in a mate more than women? Scientists in numerous disciplines believe that they do, but recent research using speed-dating paradigms suggests that males and females are equally influenced by physical attractiveness when choosing potential mates. Nevertheless, the premise of the current work is that sex differences in the importance of physical attractiveness are most likely to emerge in research on long-term relationships. Accordingly, the current work drew from 4 independent, longitudinal studies to examine sex differences in the implications of partner physical attractiveness for trajectories of marital satisfaction. In all 4 studies, both partners' physical attractiveness was objectively rated at baseline, and both partners reported their marital satisfaction up to 8 times over the first 4 years of marriage. Whereas husbands were more satisfied at the beginning of the marriage and remained more satisfied over the next 4 years to the extent that they had an attractive wife, wives were no more or less satisfied initially or over the next 4 years to the extent that they had an attractive husband. Most importantly, a direct test indicated that partner physical attractiveness played a larger role in predicting husbands' satisfaction than predicting wives' satisfaction. These findings strengthen support for the idea that sex differences in self-reported preferences for physical attractiveness do have implications for long-term relationship outcomes. (PsycINFO Database Record (c) 2014 APA, all rights reserved).

Evolutionary preferences for physical formidability in leaders.

PubMed

Murray, Gregg R

2014-01-01

This research uses evolutionary theory to evaluate followers' preferences for physically formidable leaders and to identify conditions that stimulate those preferences. It employs a population-based survey experiment (N ≥ 760), which offers the advantages to internal validity of experiments and external validity of a highly heterogeneous sample drawn from a nationally representative subject pool. The theoretical argument proffered here is followers tend to prefer leaders with greater physical formidability because of evolutionary adaptations derived from humans' violent ancestral environment. In this environment, individuals who allied with and ultimately followed physically powerful partners were more likely to acquire and retain important resources necessary for survival and reproduction because the presence of the physically powerful partner cued opponents to avoid a challenge for the resources or risk a costly confrontation. This argument suggests and the results indicate that threatening (war) and nonthreatening (peace, cooperation, and control) stimuli differentially motivate preferences for physically formidable leaders. In particular, the findings suggest threatening conditions lead to preferences for leaders with more powerful physical attributes, both anthropometric (i.e., weight, height, and body mass index) and perceptual (i.e., attributes of being "physically imposing or intimidating" and "physically strong"). Overall, this research offers a theoretical framework from which to understand this otherwise seemingly irrational phenomenon. Further, it advances the emerging but long-neglected investigation of biological effects on political behavior and has implications for a fundamental process in democratic society, leader selection.

Variation in facial masculinity and symmetry preferences across the menstrual cycle is moderated by relationship context.

PubMed

Little, Anthony C; Jones, Benedict C

2012-07-01

In women, changes in preference during the menstrual cycle have been documented for attractiveness judgements of odour and various physical and behavioural male traits. Although many studies have demonstrated greater attraction to masculine traits, such as male faces, bodies, and voices, at high fertility, several recent studies present null results for these shifts in preferences. Moreover, evidence for stronger attraction to symmetric faces at high fertility is equivocal. Here we examined variation in preferences across the cycle for both facial masculinity and symmetry according to relationship context. Using both within-subject (Study 1) and between-subject (Study2) designs, we show that women prefer masculinity and symmetry in male faces at times when their fertility is likely to be highest (during the follicular phase of their cycle) when judging the faces for short-term relationship attractiveness. No effect of cycle was seen for long-term judgements. These results indicate that cyclic shifts in women are most apparent when judging for short-term relationships, which may explain the null results in studies where only general attractiveness was assessed. Cyclical preferences could influence women to select a partner who possesses traits that may enhance her offspring's quality at times when conception is most likely and/or serve to improve partner investment when investment is important. Copyright © 2011 Elsevier Ltd. All rights reserved.

A new perspective on sexual mixing among men who have sex with men by body image.

PubMed

Leung, Ka-Kit; Wong, Horas T H; Naftalin, Claire M; Lee, Shui Shan

2014-01-01

"Casual sex" is seldom as non-selective and random as it may sound. During each sexual encounter, people consciously and unconsciously seek their casual sex partners according to different attributes. Influential to a sexual network, research focusing on quantifying the effects of physical appearance on sexual network has been sparse. We evaluated the application of Log odds score (LOD) to assess the mixing patterns of 326 men who have sex with men (MSM) in Hong Kong in their networking of casual sex partners by Body Image Type (BIT). This involved an analysis of 1,196 respondents-casual sex partner pairs. Seven BITs were used in the study: Bear, Chubby, Slender, Lean toned, Muscular, Average and Other. A hierarchical pattern was observed in the preference of MSM for casual sex partners by the latter's BIT. Overall, Muscular men were most preferred, followed by Lean toned while the least preferred was Slender, as illustrated by LOD going down along the hierarchy in the same direction. Marked avoidance was found between men who self-identified as Chubby and men of Other body type (within-group-LOD: 1.25-2.89; between-group-LOD: <-1). None of the respondents reported to have networked a man who self-identified as Average for casual sex. We have demonstrated the possibility of adopting a mathematical prototype to investigate the influence of BIT in a sexual network of MSM. Construction of matrix based on culture-specific BIT and cross-cultural comparisons would generate new knowledge on the mixing behaviors of MSM.

The Influence of Power and Intimacy Sexual Motives on Sexual Position Preference Among Men Who Have Sex with Men in China.

PubMed

Xu, Yin; Zheng, Yong

2018-01-01

We examined the sexual motives underlying sexual self-labels among Chinese men who have sex with men. A total of 60 bottoms, 120 versatiles, and 48 tops participated in a Web-based survey. Our results showed that tops were more likely to desire exerting power over their partners during sex, while bottoms were more likely to desire being overpowered by their partners. There were no significant sexual self-label differences in the sexual motives of wanting intimacy and the desire for pleasure. The intimacy and power ratings differed across sexual activities and sex positions. There was a tendency for sexual positions in which the performer was facing the receiver to be rated as more intimate than those in which the performer was facing away from the receiver, and for individuals who preferred to be insertive to feel more powerful in sexual positions in which their partner was kneeling down or standing than those in which their partner was sitting or lying down. Tops were significantly more likely than bottoms to engage in insertive sexual positions, while bottoms were significantly more likely to engage in receptive sexual positions. Both tops and bottoms were more likely to engage in the corresponding insertive/receptive position when the insertive position was rated as more powerful than the receptive position. Our results suggest that the concordance between sexual self-labels and sexual position preferences may rely on the power difference between the insertive and receptive positions in addition to body characteristics.

Perceptions of Characteristics Considered Attractive by the Other Gender.

ERIC Educational Resources Information Center

Madden, Margaret E.; And Others

Rating adjectives, 54 female and 53 male college students indicated their own preferences in dating partners or their perceptions of the other gender's preferences. The men rated good looks and physical health higher than the women did, while the women valued industriousness more than the men did. Both men and women valued intelligence more than…

26 CFR 12.8 - Elections with respect to net leases of real property.

Code of Federal Regulations, 2010 CFR

2010-04-01

... for purposes of section 57 (relating to items of tax preference for purposes of the minimum tax for tax preferences) or 163(d) (relating to limitation on interest on investment indebtedness). Under... section 57(c) or 163(d)(7) with respect to property held by a partnership shall be made by each partner...

Infant-Directed Speech Drives Social Preferences in 5-Month-Old Infants

ERIC Educational Resources Information Center

Schachner, Adena; Hannon, Erin E.

2011-01-01

Adults across cultures speak to infants in a specific infant-directed manner. We asked whether infants use this manner of speech (infant- or adult-directed) to guide their subsequent visual preferences for social partners. We found that 5-month-old infants encode an individuals' use of infant-directed speech and adult-directed speech, and use this…

A systematic review of HIV partner counseling and referral services: client and provider attitudes, preferences, practices, and experiences.

PubMed

Passin, Warren F; Kim, Angela S; Hutchinson, Angela B; Crepaz, Nicole; Herbst, Jeffrey H; Lyles, Cynthia M

2006-05-01

The objectives of this study were to understand client and provider attitudes, experiences, and practices regarding HIV partner notification in the United States and to help identify future research and program needs. The goals of this study were to synthesize the literature reporting client and provider attitudes, experiences, and practices and to identify potential negative effects of HIV partner notification. This study consisted of a systematic qualitative review. Clients were willing to self-notify partners and participate in provider notification, and few reported negative effects. The majority of health care providers were in favor of HIV partner notification; however, they did not consistently refer index clients to HIV partner notification programs. Considering that clients have positive attitudes toward self- and provider referral, local HIV prevention programs need to ensure that all HIV-positive clients are offered partner notification services. Additional research is needed to assess the potential risks of notifying partners and to identify effective techniques to improve client and provider participation.

Female veterans' preferences for counseling related to intimate partner violence: Informing patient-centered interventions.

PubMed

Iverson, Katherine M; Stirman, Shannon Wiltsey; Street, Amy E; Gerber, Megan R; Carpenter, S Louisa; Dichter, Melissa E; Bair-Merritt, Megan; Vogt, Dawne

2016-01-01

Female veterans are at high risk for intimate partner violence (IPV). A critical issue in the provision of health care to women who experience IPV is the delivery of effective brief counseling interventions that address women's unique needs. We aimed to identify female veterans' priorities and preferences for healthcare-based IPV counseling. A 2014 Web-based survey was administered to a national sample of US female veterans. Among 411 respondents (75% participation rate), 55% (n=226) reported IPV during their lifetime. These women identified priorities for the content focus of IPV-related counseling and preferences for the delivery of these services. Women prioritized counseling that focuses on physical safety and emotional health, with learning about community resources being a relatively lower priority. Participants preferred counseling to focus specifically on enhancing coping skills and managing mental health symptoms. In addition, women want counseling to be individualized and preferred the option to meet with a counselor immediately following disclosure. Affordable services and attention to privacy concerns were of paramount importance in the context of IPV-related counseling. These findings can inform patient-centered brief counseling interventions for women who experience IPV, which may ultimately reduce health disparities and violence among this population. Published by Elsevier Inc.

Supervised and Unsupervised Self-Testing for HIV in High- and Low-Risk Populations: A Systematic Review

PubMed Central

Pant Pai, Nitika; Sharma, Jigyasa; Shivkumar, Sushmita; Pillay, Sabrina; Vadnais, Caroline; Joseph, Lawrence; Dheda, Keertan; Peeling, Rosanna W.

2013-01-01

Background Stigma, discrimination, lack of privacy, and long waiting times partly explain why six out of ten individuals living with HIV do not access facility-based testing. By circumventing these barriers, self-testing offers potential for more people to know their sero-status. Recent approval of an in-home HIV self test in the US has sparked self-testing initiatives, yet data on acceptability, feasibility, and linkages to care are limited. We systematically reviewed evidence on supervised (self-testing and counselling aided by a health care professional) and unsupervised (performed by self-tester with access to phone/internet counselling) self-testing strategies. Methods and Findings Seven databases (Medline [via PubMed], Biosis, PsycINFO, Cinahl, African Medicus, LILACS, and EMBASE) and conference abstracts of six major HIV/sexually transmitted infections conferences were searched from 1st January 2000–30th October 2012. 1,221 citations were identified and 21 studies included for review. Seven studies evaluated an unsupervised strategy and 14 evaluated a supervised strategy. For both strategies, data on acceptability (range: 74%–96%), preference (range: 61%–91%), and partner self-testing (range: 80%–97%) were high. A high specificity (range: 99.8%–100%) was observed for both strategies, while a lower sensitivity was reported in the unsupervised (range: 92.9%–100%; one study) versus supervised (range: 97.4%–97.9%; three studies) strategy. Regarding feasibility of linkage to counselling and care, 96% (n = 102/106) of individuals testing positive for HIV stated they would seek post-test counselling (unsupervised strategy, one study). No extreme adverse events were noted. The majority of data (n = 11,019/12,402 individuals, 89%) were from high-income settings and 71% (n = 15/21) of studies were cross-sectional in design, thus limiting our analysis. Conclusions Both supervised and unsupervised testing strategies were highly acceptable, preferred, and more likely to result in partner self-testing. However, no studies evaluated post-test linkage with counselling and treatment outcomes and reporting quality was poor. Thus, controlled trials of high quality from diverse settings are warranted to confirm and extend these findings. Please see later in the article for the Editors' Summary PMID:23565066

Female freshwater crayfish adjust egg and clutch size in relation to multiple male traits

PubMed Central

Galeotti, Paolo; Rubolini, Diego; Fea, Gianluca; Ghia, Daniela; Nardi, Pietro A; Gherardi, Francesca; Fasola, Mauro

2006-01-01

Females may invest more in reproduction if they acquire mates of high phenotypic quality, because offspring sired by preferred partners may be fitter than offspring sired by non-preferred ones. In this study, we tested the differential maternal allocation hypothesis in the freshwater crayfish, Austropotamobius italicus, by means of a pairing experiment aimed at evaluating the effects of specific male traits (body size, chelae size and chelae asymmetry) on female primary reproductive effort. Our results showed that females laid larger but fewer eggs for relatively small-sized, large-clawed males, and smaller but more numerous eggs for relatively large-sized, small-clawed males. Chelae asymmetry had no effects on female reproductive investment. While the ultimate consequences of this pattern of female allocation remain unclear, females were nevertheless able to adjust their primary reproductive effort in relation to mate characteristics in a species where inter-male competition and sexual coercion may mask or obscure their sexual preferences. In addition, our results suggest that female allocation may differentially affect male characters, thus promoting a trade-off between the expression of different male traits. PMID:16600888

Who should take care of me? Preferences of old age individuals for characteristics of professional long-term caregivers: an observational cross-sectional study.

PubMed

Hajek, André; Lehnert, Thomas; Wegener, Annemarie; Riedel-Heller, Steffi G; König, Hans-Helmut

2017-08-10

It is most likely that the need for long-term care increases considerably in the next decades due to demographic shifts. Thus, we aimed at identifying the preferences for characteristics of professional long-term caregivers among old age individuals in Germany. Data were gathered from a population-based survey of the German population aged 65 and above in 2015 (n = 1006). It was important for individuals in old age that long-term caregivers were 'empathetic, kind' (99.3%), 'punctual, reliable' (98.2%), have an 'orderly appearance' (96.4%), work in a 'small team' (92.5%) and have 'enough time' (91.5%). Moreover, while most of the individuals (76.5%) reported high preferences for 'German language', the preferences were lower for 'same cultural background' (54.2%) and 'same gender' (35.7%). In multiple logistic regressions, preferences for 'same gender' were positively associated with being female [OR 8.3 (5.6-12.1)], living with partner or spouse [OR 1.4 (1.0-1.9)], and being born abroad [OR 1.8 (1.1-3.1)]. Preferences for 'German language' were positively associated with being female [OR: 1.5 (1.1-2.1)]. Preferences for 'same cultural background' were positively associated with age [OR 1.0 (1.0-1.1)], living with partner or spouse [OR 1.4 (1.0-1.9)], and East Germany [OR 1.9 (1.3-2.7)]. Preferences for 'orderly appearance', 'empathetic, kind', 'punctual, reliable' and 'small nursing team' were all not significantly associated with included independent variables, whereas preferences for 'enough time' were positively associated with being female [OR 1.9 (1.1-3.5)], living with partner or spouse [OR 1.9 (1.1-3.4)], education [Apprenticeship, full-time vocational school, OR 3.1 (1.3-7.6)], not providing care for family/friends [OR 1.9 (1.1-3.3)], and involvement in the issue of need for care [OR 1.3 (1.1-1.6)]. Our data suggest that it is important to almost every individual aged 65 and above in Germany that professional long-term caregivers are (i) empathetic, kind, and understanding, (ii) punctual and reliable, (iii) have enough time (e.g., for conversation), (iv) and have an orderly appearance. Furthermore, several factors such as gender or region were found to be associated with preferences for characteristics of caregivers. By knowing these factors, nursing services can tailor their activities to the needs of care-recipients.

Fraternal birth order and sexual orientation in pedophiles.

PubMed

Blanchard, R; Barbaree, H E; Bogaert, A F; Dickey, R; Klassen, P; Kuban, M E; Zucker, K J

2000-10-01

Whether homosexual pedophiles have more older brothers (a higher fraternal birth order) than do heterosexual pedophiles was investigated. Subjects were 260 sex offenders (against children age 14 or younger) and 260 matched volunteer controls. The subject's relative attraction to male and female children was assessed by phallometric testing in one analysis, and by his offense history in another. Both methods showed that fraternal birth order correlates with homosexuality in pedophiles, just as it does in men attracted to physically mature partners. Results suggest that fraternal birth order (or the underlying variable it represents) may prove the first identified universal factor in homosexual development. Results also argue against a previous explanation of the high prevalence of homosexuality in pedophiles (25% in this study), namely, that the factors that determine sexual preference in pedophiles are different from those that determine sexual preference in men attracted to adults. An alternative explanation in terms of canalization of development is suggested.

Does Higher Education Expansion Promote Educational Homogamy? Evidence from Married Couples of the Post-80s Generation in Shanghai, China

PubMed Central

Hu, Anning; Qian, Zhenchao

2017-01-01

The expansion of higher education witnessed in many societies influences the pattern of educational assortative mating. Structural transition theory predicts growing educational homogamy due to increasing preference for highly-educated partners who become more widely available. In contrast, social closure theory suggests depressed educational homogamy because the inflation of the education elite circle fosters the openness of marriage market, reducing the preference for a highly-educated mate and increasing the penetrability across social-status boundaries. Capitalizing the survey data that are representative of the post-80s one-child generation collected in Shanghai, China, we test the hypotheses derived from the two theories. Empirical results suggest that, with increasing availability of highly educated individuals, the extent of educational homogamy by birth cohort reveals a U-shaped pattern. This U-shaped pattern demonstrates increasing levels of educational homogamy and lends support to structural transition theory. PMID:27712675

Altruism as a courtship display: some effects of third-party generosity on audience perceptions.

PubMed

Barclay, Pat

2010-02-01

Public generosity may be a means to convincingly advertise one's good character. This hypothesis suggests that altruistic individuals will be desirable as romantic partners. Few studies have tested this prediction, and these showed mixed results. Some studies have found that altruism is not particularly attractive; other studies showed that altruism is attractive by contrasting descriptions of 'nice guys' with 'jerks'. The present study sought to resolve this debate by having participants read a series of experimentally manipulated vignettes of persons with corresponding photographs, such that altruistic vignettes were compared with control descriptions that differed only in the presence or absence of small hints of altruistic tendencies. Altruists were more desirable for long-term relationships than neutral individuals. Women also preferred altruists for single dates whereas men had no such preference. These results are discussed with regard to the idea that people (males in particular) signal their good character via generosity.

Molecular marriage through partner preferences in covalent cage formation and cage-to-cage transformation.

PubMed

Acharyya, Koushik; Mukherjee, Sandip; Mukherjee, Partha Sarathi

2013-01-16

Unprecedented self-sorting of three-dimensional purely organic cages driven by dynamic covalent bonds is described. Four different cages were first synthesized by condensation of two triamines and two dialdehydes separately. When a mixture of all the components was allowed to react, only two cages were formed, which suggests a high-fidelity self-recognition. The issue of the preference of one triamine for a particular dialdehyde was further probed by transforming a non-preferred combination to either of the two preferred combinations by reacting it with the appropriate triamine or dialdehyde.

Capturing the Interpersonal Implications of Evolved Preferences? Frequency of Sex Shapes Automatic, but Not Explicit, Partner Evaluations.

PubMed

Hicks, Lindsey L; McNulty, James K; Meltzer, Andrea L; Olson, Michael A

2016-06-01

A strong predisposition to engage in sexual intercourse likely evolved in humans because sex is crucial to reproduction. Given that meeting interpersonal preferences tends to promote positive relationship evaluations, sex within a relationship should be positively associated with relationship satisfaction. Nevertheless, prior research has been inconclusive in demonstrating such a link, with longitudinal and experimental studies showing no association between sexual frequency and relationship satisfaction. Crucially, though, all prior research has utilized explicit reports of satisfaction, which reflect deliberative processes that may override the more automatic implications of phylogenetically older evolved preferences. Accordingly, capturing the implications of sexual frequency for relationship evaluations may require implicit measurements that bypass deliberative reasoning. Consistent with this idea, one cross-sectional and one 3-year study of newlywed couples revealed a positive association between sexual frequency and automatic partner evaluations but not explicit satisfaction. These findings highlight the importance of automatic measurements to understanding interpersonal relationships. © The Author(s) 2016.

Capturing the Interpersonal Implications of Evolved Preferences? Frequency of Sex Shapes Automatic, But Not Explicit, Partner Evaluations

PubMed Central

Hicks, Lindsey L.; McNulty, James K.; Meltzer, Andrea L.; Olson, Michael A.

2016-01-01

Sex is crucial to reproduction, and thus humans likely evolved a strong predisposition to engage in sexual intercourse. Given that meeting interpersonal preferences tends to promote positive relationship evaluations, sex within a relationship should be positively associated with relationship satisfaction. Nevertheless, prior research has been inconclusive in demonstrating such a link, with longitudinal and experimental studies showing no association between sexual frequency and relationship satisfaction. Crucially, though, all prior research has utilized explicit reports of satisfaction, which reflect deliberative processes that may override the more automatic implications of phylogenetically older evolved preferences. Accordingly, capturing the implications of sexual frequency for relationship evaluations may require implicit measurements that bypass deliberative reasoning. Consistent with this idea, one cross-sectional and one three-year study of newlywed couples revealed a positive association between sexual frequency and automatic partner evaluations but not explicit satisfaction. These findings highlight the importance of automatic measurements to understanding interpersonal relationships. (150 words) PMID:27084851

Race-based sexual stereotypes and their effects on sexual risk behavior in racially diverse young men who have sex with men.

PubMed

Newcomb, Michael E; Ryan, Daniel T; Garofalo, Robert; Mustanski, Brian

2015-10-01

Men who have sex with men (MSM) are disproportionately impacted by the HIV/AIDS epidemic in the United States. The epidemic is not evenly distributed across MSM, and young racial minority MSM experience the highest rate of new infections. Race-based sexual stereotyping is not uncommon among MSM, and it may contribute to the isolation of racial minority sexual networks, which has been found to contribute to increased HIV incidence in Black MSM. The goals of these analyses were to describe the race-based sexual preferences and stereotypes of racially diverse young MSM (YMSM), and to examine whether endorsement of sexual stereotypes was associated with sexual risk behavior when having sex with partners of the stereotyped race. Data were taken from Crew 450, an ongoing longitudinal study of a syndemic of psychosocial health issues linked to HIV among YMSM in Chicago and surrounding areas. Analyses utilized data from three study waves, and longitudinal analyses were conducted with Hierarchical Linear Modeling. YMSM generally endorsed same-race preferences for sexual partners. Black partners were rated highest in displaying stereotypically dominant characteristics and in likelihood of taking the top/insertive sex role, while Latino partners were rated the highest in likelihood of sex being hot and passionate. White partners were rated lowest on each of these domains. Longitudinal analyses found that endorsement of these stereotypes had important implications for the rate of condomless receptive and insertive anal sex with racial minority partners. Findings suggest that sexual stereotypes may contribute to the isolation of racial minority sexual networks.

Race-Based Sexual Stereotypes and their Effects on Sexual Risk Behavior in Racially-Diverse Young Men Who Have Sex with Men

PubMed Central

Newcomb, Michael E.; Ryan, Daniel T.; Garofalo, Robert; Mustanski, Brian

2015-01-01

Men who have sex with men (MSM) are disproportionately impacted by the HIV/AIDS epidemic in the United States. The epidemic is not evenly distributed across MSM, and young racial minority MSM experience the highest rate of new infections. Race-based sexual stereotyping is not uncommon among MSM, and it may contribute to the isolation of racial minority sexual networks, which has been found to contribute to increased HIV incidence in Black MSM. The goals of these analyses were to describe the race-based sexual preferences and stereotypes of racially-diverse young MSM (YMSM), and to examine whether endorsement of sexual stereotypes was associated with sexual risk behavior when having sex with partners of the stereotyped race. Data were taken from Crew 450, an ongoing longitudinal study of a syndemic of psychosocial health issues linked to HIV among YMSM in Chicago and surrounding areas. Analyses utilized data from three study waves, and longitudinal analyses were conducted with Hierarchical Linear Modeling. YMSM generally endorsed same-race preferences for sexual partners. Black partners were rated highest in displaying stereotypically dominant characteristics and in likelihood of taking the top/insertive sex role, while Latino partners were rated the highest in likelihood of sex being hot and passionate. White partners were rated lowest on each of these domains. Longitudinal analyses found that endorsement of these stereotypes had important implications for the rate of condomless receptive and insertive anal sex with racial minority partners. Findings suggest that sexual stereotypes may contribute to the isolation of racial minority sexual networks. PMID:26116010

Vaginal secretions increase the likelihood of intermale aggression in Syrian hamsters.

PubMed

Fischer, R B; Brown, P S

1993-08-01

Although sexually receptive female hamsters prefer dominant males as mating partners, it is not clear what role the female might play facilitating aggressive interactions among males that would lead to the establishment of a status relationship. The ability of vaginal odors to stimulate male aggression was examined by paring randomly chosen males in a neutral arena with vaginal odors either present or absent. Males exhibited significantly more aggression when tested in the scented arena. Vaginal odors are efficient broadcast signals serving to space females, attract males, and to stimulate aggressive interactions among the males while inhibiting aggression towards the female.

Determinants of contraceptive use among Nigerian couples: evidence from the 2013 Demographic and Health Survey.

PubMed

Blackstone, Sarah R; Iwelunmor, Juliet

2017-01-01

Nigeria remains a focus for increasing contraceptive use, as it is one of the most populous countries in Sub-Saharan Africa. The objective of the current study was to investigate determinants of contraceptive use in Nigeria couples. Using the 2013 Nigeria Demographic and Health Survey, we estimated the likelihood of contraceptive use based on concordance with male partner desire for family size, male and female fertility preferences, female decision making power, and male partner attitudes toward contraceptive use. Male partner perception that decisions regarding health should be made jointly or primarily by women was positively associated with use. Women were less likely to use contraceptives in couples in which male partners had greater earning power. Finally, men who viewed contraceptives as an enabler for promiscuity had female partners less likely to use contraceptives. These findings highlight the importance of male partners in women's contraceptive decision making.

Does the contraceptive pill alter mate choice in humans?

PubMed

Alvergne, Alexandra; Lummaa, Virpi

2010-03-01

Female and male mate choice preferences in humans both vary according to the menstrual cycle. Women prefer more masculine, symmetrical and genetically unrelated men during ovulation compared with other phases of their cycle, and recent evidence suggests that men prefer ovulating women to others. Such monthly shifts in mate preference have been suggested to bring evolutionary benefits in terms of reproductive success. New evidence is now emerging that taking the oral contraceptive pill might significantly alter both female and male mate choice by removing the mid-cycle change in preferences. Here, we review support for such conclusions and speculate on the consequences of pill-induced choice of otherwise less-preferred partners for relationship satisfaction, durability and, ultimately, reproductive outcomes.

Major histocompatibility complex class II compatibility, but not class I, predicts mate choice in a bird with highly developed olfaction

PubMed Central

Strandh, Maria; Westerdahl, Helena; Pontarp, Mikael; Canbäck, Björn; Dubois, Marie-Pierre; Miquel, Christian; Taberlet, Pierre; Bonadonna, Francesco

2012-01-01

Mate choice for major histocompatibility complex (MHC) compatibility has been found in several taxa, although rarely in birds. MHC is a crucial component in adaptive immunity and by choosing an MHC-dissimilar partner, heterozygosity and potentially broad pathogen resistance is maximized in the offspring. The MHC genotype influences odour cues and preferences in mammals and fish and hence olfactory-based mate choice can occur. We tested whether blue petrels, Halobaena caerulea, choose partners based on MHC compatibility. This bird is long-lived, monogamous and can discriminate between individual odours using olfaction, which makes it exceptionally well suited for this analysis. We screened MHC class I and II B alleles in blue petrels using 454-pyrosequencing and quantified the phylogenetic, functional and allele-sharing similarity between individuals. Partners were functionally more dissimilar at the MHC class II B loci than expected from random mating (p = 0.033), whereas there was no such difference at the MHC class I loci. Phylogenetic and non-sequence-based MHC allele-sharing measures detected no MHC dissimilarity between partners for either MHC class I or II B. Our study provides evidence of mate choice for MHC compatibility in a bird with a high dependency on odour cues, suggesting that MHC odour-mediated mate choice occurs in birds. PMID:22951737

Sex Differences in the Implications of Partner Physical Attractiveness for the Trajectory of Marital Satisfaction

PubMed Central

Meltzer, Andrea L.; McNulty, James K.; Jackson, Grace; Karney, Benjamin R.

2014-01-01

Do men value physical attractiveness in a mate more than women? Scientists in numerous disciplines believe that they do, but recent research using speed-dating paradigms suggests that males and females are equally influenced by physical attractiveness when choosing potential mates. Nevertheless, the premise of the current work is that sex differences in the importance of physical attractiveness are most likely to emerge in research on long-term relationships. Accordingly, the current work drew from four independent, longitudinal studies to examine sex differences in the implications of partner physical attractiveness for trajectories of marital satisfaction. In all four studies, both partners’ physical attractiveness was objectively rated at baseline and both partners reported their marital satisfaction up to eight times over the first four years of marriage. Whereas husbands were more satisfied at the beginning of the marriage and remained more satisfied over the next four years to the extent that they had an attractive wife, wives were no more or less satisfied initially or over the next four years to the extent that they had an attractive husband. Most importantly, a direct test indicated that partner physical attractiveness played a larger role in predicting husbands’ satisfaction than predicting wives’ satisfaction. These findings strengthen support for the idea that gender differences in self-reported preferences for physical attractiveness do have implications for long-term relationship outcomes. PMID:24128188

Sexual odor discrimination and physiological profiles in adult male rats after a neonatal, short term, reversible nasal obstruction.

PubMed

Thornton, S N; Padzys, G S; Trabalon, M

2014-05-01

The present study was designed to examine behavioral responses (interpreted as preferences) to olfactory cues (nest bedding odor and odors of estrous and anestrus females) in adult male rats after they had a short term reversible, bilateral, nasal obstruction (RbNO) as developing rat pups. These results were compared to behavior of control (untreated) and sham operated male littermates. Behavioral tests and physiological parameters were analyzed 90 days after recovery of nasal breathing. Experiments investigated the time spent in arms or the center of a maze of male rats in response to odors from the nest bedding or from adult females. There were no differences in responses between untreated, sham and RbNO adult male rats to fresh and nest bedding odors. RbNO males spent more time in the center of the maze when given a choice of estrus or anestrus female odors, or bedding odors from untreated or sham operated female rats. In contrast untreated and sham male rats preferred the odors of estrous females and of untreated or sham females. Plasma corticosterone levels in the males increased during the behavioral tests. Plasma testosterone levels were significantly lower in RbNO males compared to untreated males and did not increase during the behavioral tests compared to sham operated males. Males from all groups had similar preferences for the odor of bedding from adult RbNO females. Plasma levels of cholesterol and triglycerides were increased in RbNO adults. In conclusion, short term nasal obstruction in males while juvenile has long term consequences on hormones and behavioral preferences, thus potential partner selection when adult. Copyright © 2014 Elsevier Inc. All rights reserved.

Female attraction to appetitive-aggressive men is modulated by women's menstrual cycle and men's vulnerability to traumatic stress.

PubMed

Giebel, Gilda; Weierstall, Roland; Schauer, Maggie; Elbert, Thomas

2013-03-20

Many studies have reported that during high fertility points in the menstrual cycle, women demonstrate increased preference for men with masculinized faces and bodies. In this study, we analyzed whether appetitive aggression in men serves as an additional signal for a favored partner choice. Appetitive aggression describes the intrinsic motivation to act violently even when not being threatened. This study evaluated the responses of 1212 women to one of four descriptions regarding a soldier´s experience after returning from war. The four vignettes included trauma related symptoms with high or low appetitive aggression, or no trauma related symptoms with high or low appetitive aggression. Participants rated their desirability for the soldier in regards to potential long-term and short-term relationships. Results indicate that women preferred a soldier high in appetitive aggression as a short-term mate but not as a long-term relationship. This preference for the "warrior" was higher for women in their fertile window of the menstrual cycle. We conclude that women in their fertile window prefer men exhibiting higher appetitive aggression as a short-term partner, revealing appetitive aggression in men may serve as a signal for a higher genetic fitness.

Attention to negative emotion is related to longitudinal social network change: The moderating effect of interdependent self-construal.

PubMed

Li, Tianyuan; Fung, Helene H; Isaacowitz, Derek M; Lang, Frieder R

2015-08-01

Many previous studies have investigated older adults' attentional preference toward different emotions. Interdependent self-construal is identified to be an important moderator of this phenomenon. However, despite the important social functions of emotions, the social consequence of older adults' emotional preferences in attention have not yet been examined. The current study tested how older adults' attentional preferences assessed in the laboratory influenced changes in their real-life social network, and how interdependent self-construal moderated this effect. A total of 45 older adults aged 60-84 years participated in an eye-tracking session that measured their attentional preference to emotional faces versus neutral faces. After that, participants completed the Self-Construal Scale. Participants' social network was then assessed by the Social Convoy Questionnaire twice over a 2-year period. Interdependent self-construal significantly moderated the effect of attention to angry and sad faces on older adults' real-life social network changes. For older adults with a higher level of interdependent self-construal, more attention toward negative emotions was related to longitudinal decreases in the number of their emotionally close social partners. The present study shows the important role of attentional preferences in older adults' social network maintenance. It identified a real-life macro level social outcome of a micro level laboratory phenomenon, which can be an important direction for future research. © 2014 Japan Geriatrics Society.

Factors influencing fluoxetine-induced sexual dysfunction in female rats

PubMed Central

Adams, Sarah; Heckard, Danyeal; Hassell, James; Uphouse, Lynda

2012-01-01

Treatment with selective serotonin reuptake inhibitors, such as fluoxetine, produces sexual side effects with low sexual desire being the most prevalent effect in females. In few studies have preclinical models for such antidepressant-induced sexual dysfunction been fruitful. In the current manuscript, the effects of fluoxetine on multiple measures of female sexual motivation and sexual receptivity were examined. Ovariectomized, Fischer rats were primed with 10 μg estradiol benzoate and 500 μg progesterone. Partner preference, active investigation of the male, and measures of sexual behavior were examined after injection with 15 mg/kg fluoxetine. Factors (pretesting for sexual behavior, size of the test arena, non-contact time with a male) that differ among experiments designed to study antidepressant-induced female rat sexual dysfunction were studied. The male preference ratio was not affected by fluoxetine treatment but active investigation of the male was reduced; lordosis behavior was inhibited and pretesting for sexual receptivity amplified fluoxetine's inhibition; size of the testing arena or non-contact experience with the male had no effect. Regardless of test condition, when given the opportunity to escape from the male, fluoxetine-treated females displayed escape behavior. Measures of male preference and active investigation, but not lordosis behavior, appeared to be affected by fluoxetine's impact on activity. The collective data provided a behavioral profile of fluoxetine-induced sexual dysfunction. These findings reinforce the value of multiple measures when attempting to model antidepressant-induced female sexual dysfunction. PMID:22835821

Home-based HIV testing for men who have sex with men in China: a novel community-based partnership to complement government programs.

PubMed

Tao, Jun; Li, Ming-ying; Qian, Han-Zhu; Wang, Li-Juan; Zhang, Zheng; Ding, Hai-Feng; Ji, Ya-Cheng; Li, Dong-liang; Xiao, Dong; Hazlitt, Melissa; Vermund, Sten H; Xiu, Xiangfei; Bao, Yugang

2014-01-01

The coverage of HIV testing among Chinese men who have sex with men (MSM) remains low after the scale-up of free HIV testing at government-sponsored testing sites. We evaluated the feasibility of home-based HIV self-testing and the willingness to be HIV tested at community-based organizations (CBO). We recruited MSM via on-line advertisement, where they completed an on-line informed consent and subsequent questionnaire survey. Eligible MSM received HIV rapid testing kits by mail, performed the test themselves and reported the result remotely. Of the 220 men taking a home-based HIV self-testing, 33 MSM (15%) were seropositive. Nearly 65% of the men reported that they were willing to take HIV testing at CBO, while 28% preferred receiving free HIV testing in the government programs at local Centers for Disease Control and Prevention (CDC). Older and lower-income MSM, those who self-reported homosexual orientation, men with no history of sexually transmitted diseases and a lower number of sexual partners in the past six months were associated with preference for taking HIV testing at CBOs. The top three self-reported existing barriers for HIV testing were: no perception of HIV risk (56%), fear of an HIV positive result being reported to the government (41%), and fear of a positive HIV test result (36%). Home-based HIV self-testing is an alternative approach for increasing the coverage of HIV testing among Chinese MSM. CBO-based HIV testing is a potential alternative, but further studies are needed to evaluate its feasibility.

Naïve Chicks Prefer Hollow Objects

PubMed Central

Schill, Jana; Nencini, Andrea Maria; Vallortigara, Giorgio

2016-01-01

Biological predispositions influence approach and avoid responses from the time of birth or hatching. Neonates of species that require parental care (e.g. human babies and chicks of the domestic fowl) are attracted by stimuli associated with animate social partners, such as face-like configurations, biological motion and self-propulsion. The property of being filled is used as a cue of animacy by 8-month-old human infants but it is not known whether this reflects the effect of previous experience. We used chicks of the domestic fowl (Gallus gallus) to investigate whether the property of being filled vs. hollow elicits spontaneous or learned preferences. To this aim we tested preferences of naïve and imprinted chicks for hollow and closed cylinders. Contrary to our expectations, we documented an unlearned attraction for hollow stimuli. The preference for hollow stimuli decreased when chicks were imprinted on filled stimuli but did not increase when chicks were imprinted on hollow stimuli, suggesting that hollowness is not crucial to determine affiliative responses for imprinting objects. When chicks were imprinted on occluded stimuli that could be either filled or hollow, the preference for hollow stimuli emerged again, showing that imprinting does not disrupt the spontaneous preference for hollow objects. Further experiments revealed that hollow objects were mainly attractive by means of depth cues such as darker innards, more than as places to hide or as objects with high contrast. Our findings point to predisposed preferences for hollow objects, and suggest that early predispositions might be driven by factors different from animacy cues. PMID:27851773

HIV Testing Practices and Interest in Self-Testing Options among Young, Black Men Who Have Sex with Men in North Carolina

PubMed Central

HURT, Christopher B.; SONI, Karina; MILLER, William C.; HIGHTOW-WEIDMAN, Lisa B.

2016-01-01

Background Young, Black men who have sex with men (YBMSM) experience disproportionately high HIV incidence in the United States. Relative to other at-risk populations, less is known about their HIV testing behaviors and preferences regarding self-testing. Methods We used an online survey to investigate testing practices and interest in self-testing among HIV-uninfected, 18–30 year-old YBMSM in North Carolina. Results From July 2014 – March 2015, 212 completed the survey; median age was 24 years. Among 175 (83%) who had ever been tested, 160 (91%) reported testing in the prior year, 124 (71%) tested at least every 6 months, and 71 (40%) tested at least quarterly. About three-quarters (77%; n=164) were aware of HIV self-testing; 35 (17%) had ever purchased rapid (n=27) or dried blood spot-based (n=14) kits. Participants aware of kits had greater intention to test in the next 6 months; were more likely to have income for basic necessities and to ask sex partners about HIV status; and were less likely to have a main sex partner or to have had transactional sex. Among 142 participants at least somewhat likely to self-test in the future, convenience (35%), privacy (23%), and rapid result delivery (18%) were the principal motivators. Conclusions Eight of every ten YBMSM have ever been tested for HIV, but inter-test intervals remain unacceptably long for many. Awareness of and interest in self-testing is substantial, but few have used this method. Expanded use of self-tests could help increase the frequency of HIV testing in this epidemiologically important population. PMID:27513387

Designing a sexual network study of men who have sex with other men: exploring racial and ethnic preferences in study design and methods.

PubMed

Biello, Katie B; Malone, Jowanna; Mayer, Kenneth H; Bazzi, Angela Robertson; Mimiaga, Matthew J

2017-01-01

Black and Latino gay, bisexual, and other men who have sex with men (MSM) have higher rates of HIV and other sexually transmitted infections (STIs) than their White counterparts. Differences in sexual networks have been hypothesized to play an important role in the observed racial/ethnic disparities in risk. However, concerns about the acceptability and feasibility of conducting sociocentric sexual network studies have left a dearth of data on the structure of sexual networks of MSM. If certain network research procedures are unacceptable among target populations, biases may be introduced. We conducted qualitative interviews and brief surveys with 30 self-identified Black (n = 12), Hispanic/Latino, (n = 9) and White (n = 9) sexually active MSM in the Greater Boston area to assess the acceptability and feasibility of potential procedures for a sociocentric sexual network study. We found that referring recent sexual partners as part of a sociocentric network study was generally acceptable, but racial/ethnic differences emerged regarding specific preferences for how to recruit sexual partners. While the majority of Black participants (7/12) explained that they would not want their name disclosed to sexual partners approached for study participation, most Latino participants (7/9) preferred having the opportunity to inform referrals themselves about the study prior to researchers contacting them, and White participants (8/9) favored having researchers disclose their names when recruiting referrals, emphasizing the importance of transparency. In order to reduce differential rates of research participation, increase scientific validity, and reduce risks of social harm, researchers studying sexual networks among MSM should be aware of these potential differences, engage communities in study design, and provide participants with a variety of options for recruiting their sexual partners.

Partners or rivals? Strategies for the iterated prisoner's dilemma☆

PubMed Central

Hilbe, Christian; Traulsen, Arne; Sigmund, Karl

2015-01-01

Within the class of memory-one strategies for the iterated Prisoner's Dilemma, we characterize partner strategies, competitive strategies and zero-determinant strategies. If a player uses a partner strategy, both players can fairly share the social optimum; but a co-player preferring an unfair solution will be penalized by obtaining a reduced payoff. A player using a competitive strategy never obtains less than the co-player. A player using a zero-determinant strategy unilaterally enforces a linear relation between the two players' payoffs. These properties hold for every strategy used by the co-player, whether memory-one or not. PMID:26339123

Support to Industry Partners in Achieving Designation/Certification for the US Safety Act (Soutien aux Partenaires de L’industrie afin de les Aider a Obtenir la Designation/Certification Associee a la Loi Americaine sur la Securite)

DTIC Science & Technology

2011-10-01

partners of the CRTI and PSTP programs in applying and receiving positive status under the SAFTEY Act is a valuable service that DRDC-CSS can supply...Canadian industry partners of the CRTI/PSTP program into successfully applying for designation under the USA SAFETY Act, and preferably to be added...to the Department of Homeland Security Approved Product List (APL). This will enable Canadian companies to access these markets with the outputs of

Measuring partner choice in plant-pollinator networks: using null models to separate rewiring and fidelity from chance.

PubMed

MacLeod, Molly; Genung, Mark A; Ascher, John S; Winfree, Rachael

2016-11-01

Recent studies of mutualistic networks show that interactions between partners change across years. Both biological mechanisms and chance could drive these patterns, but the relative importance of these factors has not been separated. We established a field experiment consisting of 102 monospecific plots of 17 native plant species, from which we collected 6713 specimens of 52 bee species over four years. We used these data and a null model to determine whether bee species' foraging choices varied more or less over time beyond the variation expected by chance. Thus we provide the first quantitative definition of rewiring and fidelity as these terms are used in the literature on interaction networks. All 52 bee species varied in plant partner choice across years, but for 27 species this variation was indistinguishable from random partner choice. Another 11 species showed rewiring, varying more across years than expected by chance, while 14 species showed fidelity, indicating that they both prefer certain plant species and are consistent in those preferences across years. Our study shows that rewiring and fidelity both exist in mutualist networks, but that once sampling effects have been accounted for, they are less common than has been reported in the ecological literature. © 2016 by the Ecological Society of America.

Population heterogeneity promotes a preference for blind cooperation

NASA Astrophysics Data System (ADS)

Perez-Escudero, Alfonso; Friedman, Jonathan; Gore, Jeff

Game theory--and common sense--recommend to carefully weigh costs and benefits before deciding on a course of action. Yet we often disapprove of people who do so, even when their actual decision benefits us. For example, we prefer people who directly agree to do us a favor over those who agree only after securing enough information to ensure that the favor will not be too costly. Why should we care about how people make their decisions, rather than just focus on the decisions themselves? Hoffman et al. (2015) have shown that such aversion to information gathering may be beneficial when it is strong enough to increase the level of cooperation. Here we show that the same type of aversion arises in heterogeneous populations, but for a different reason: individuals who seek additional information may reveal themselves to be undesirable partners, since they are less likely to cooperate in the future when conditions change. Aversion to information gathering thus facilitates preferential interactions with blind cooperators, who are more favorable partners. Due to this new mechanism the prevalence of such aversion rapidly increases with population diversity, because partner discrimination is more useful in populations which harbor partners of a more varied quality. We gratefully acknowledge funding from the Paul G. Allen Family Foundation, EMBO and Human Frontier Science Program.

Chimpanzees, bonobos and children successfully coordinate in conflict situations.

PubMed

Sánchez-Amaro, Alejandro; Duguid, Shona; Call, Josep; Tomasello, Michael

2017-06-14

Social animals need to coordinate with others to reap the benefits of group-living even when individuals' interests are misaligned. We compare how chimpanzees, bonobos and children coordinate their actions with a conspecific in a Snowdrift game, which provides a model for understanding how organisms coordinate and make decisions under conflict. In study 1, we presented pairs of chimpanzees, bonobos and children with an unequal reward distribution. In the critical condition, the preferred reward could only be obtained by waiting for the partner to act, with the risk that if no one acted, both would lose the rewards. Apes and children successfully coordinated to obtain the rewards. Children used a 'both-partner-pull' strategy and communicated during the task, while some apes relied on an 'only-one-partner-pulls' strategy to solve the task, although there were also signs of strategic behaviour as they waited for their partner to pull when that strategy led to the preferred reward. In study 2, we presented pairs of chimpanzees and bonobos with the same set-up as in study 1 with the addition of a non-social option that provided them with a secure reward. In this situation, apes had to actively decide between the unequal distribution and the alternative. In this set-up, apes maximized their rewards by taking their partners' potential actions into account. In conclusion, children and apes showed clear instances of strategic decision-making to maximize their own rewards while maintaining successful coordination. © 2017 The Author(s).

Community-Based Assessment to Inform a Chlamydia Screening Program for Women in a Rural American Indian Community

PubMed Central

Smartlowit-Briggs, Lucy; Pearson, Cynthia; Whitefoot, Patricia; Altamirano, Bianca N.; Womack, Michelle; Bastin, Marie; Dombrowski, Julia C.

2017-01-01

Background Rates of chlamydial infection in American Indian/Alaska Native women in the United States are approximately 4-fold those in non-Hispanic white women. We conducted a community-based survey of self-identified American Indian/Alaska Native women 14 to 25 years of age on a reservation in the Northwestern United States to inform a chlamydia screening strategy. Methods The anonymous survey assessed respondents’ knowledge, perceptions, and preferences related to chlamydia screening, results receipt, and partner notification. We recruited women using respondent-driven sampling, school-based sampling, and direct recruitment through social media and fliers. Participants in schools completed the survey as a paper-based, self-administered survey. Other participants could complete the survey in person, by phone as an interviewer-administered survey, or online. Results We recruited 162 participants, most in schools (n = 83; 51%) or by peer referral (n = 55; 34%). Only 1 woman completed the survey online. Thirty-one respondents (19%) reported a history of an unplanned first pregnancy, and 19 (12%) reported a history of a diagnosed sexually transmitted disease. Most women (n = 98; 63%) recognized the potential impact of Chlamydia trachomatis on fertility. The preferred site for chlamydia screening was the Indian Health Service Clinic (n = 114; 70%), but 79 women (41%) would accept a C. trachomatis test at a nonclinical testing site. Of the 56 women (35%) who would accept home testing, most preferred to get the test kit from a clinic. Conclusions Our results suggest that Indian Health Service efforts to increase chlamydia screening in the clinic and through outreach may be more successful than promotion of home testing in this population. PMID:27196261

Community-Based Assessment to Inform a Chlamydia Screening Program for Women in a Rural American Indian Community.

PubMed

Smartlowit-Briggs, Lucy; Pearson, Cynthia; Whitefoot, Patricia; Altamirano, Bianca N; Womack, Michelle; Bastin, Marie; Dombrowski, Julia C

2016-06-01

Rates of chlamydial infection in American Indian/Alaska Native women in the United States are approximately 4-fold those in non-Hispanic white women. We conducted a community-based survey of self-identified American Indian/Alaska Native women 14 to 25 years of age on a reservation in the Northwestern United States to inform a chlamydia screening strategy. The anonymous survey assessed respondents' knowledge, perceptions, and preferences related to chlamydia screening, results receipt, and partner notification. We recruited women using respondent-driven sampling, school-based sampling, and direct recruitment through social media and fliers. Participants in schools completed the survey as a paper-based, self-administered survey. Other participants could complete the survey in person, by phone as an interviewer-administered survey, or online. We recruited 162 participants, most in schools (n = 83; 51%) or by peer referral (n = 55; 34%). Only 1 woman completed the survey online. Thirty-one respondents (19%) reported a history of an unplanned first pregnancy, and 19 (12%) reported a history of a diagnosed sexually transmitted disease. Most women (n = 98; 63%) recognized the potential impact of Chlamydia trachomatis on fertility. The preferred site for chlamydia screening was the Indian Health Service Clinic (n = 114; 70%), but 79 women (41%) would accept a C. trachomatis test at a nonclinical testing site. Of the 56 women (35%) who would accept home testing, most preferred to get the test kit from a clinic. Our results suggest that Indian Health Service efforts to increase chlamydia screening in the clinic and through outreach may be more successful than promotion of home testing in this population.

Inhibiting ERα expression in the medial amygdala increases prosocial behavior in male meadow voles (Microtus pennsylvanicus).

PubMed

Stetzik, Lucas; Ganshevsky, Denis; Lende, Michelle N; Roache, Laura E; Musatov, Sergei; Cushing, Bruce S

2018-05-30

This study tested the hypothesis that site-specific estrogen receptor alpha (ERα) expression is a critical factor in the expression of male prosocial behavior and aggression. Previous studies have shown that in the socially monogamous prairie vole (Microtus ochrogaster) low levels of ERα expression, in the medial amygdala (MeA), play an essential role in the expression of high levels of male prosocial behavior and that increasing ERα expression reduced male prosocial behavior. We used an shRNA adeno-associated viral vector to knock down/inhibit ERα in the MeA of the polygynous male meadow vole (M. pennsylvanicus), which displays significantly higher levels of ERα in the MeA than its monogamous relative. Control males were transfected with a luciferase expressing AAV vector. After treatment males participated in three social behavior tests, a same-sex dyadic encounter, an opposite-sex social preference test and an alloparental test. We predicted that decreasing MeA ERα would increase male meadow vole's prosocial behavior and reduce aggression. The results generally supported the hypothesis. Specifically, MeA knockdown males displayed lower levels of defensive aggression during dyadic encounters and increased levels of overall side-x-side physical contact with females during the social preference test, eliminating the partner preference observed in controls. There was no effect on pup interactions, with both treatments expressing low levels of alloparental behavior. Behaviors affected were similar to those in male prairie voles with increased ERα in the BST rather than the MeA, suggesting that relative changes of expression within these nuclei may play a critical role in regulating prosocial behavior. Copyright © 2018 Elsevier B.V. All rights reserved.

Preferences for long-term care services: willingness to pay estimates derived from a discrete choice experiment.

PubMed

Nieboer, Anna P; Koolman, Xander; Stolk, Elly A

2010-05-01

Ageing populations increase pressure on long-term care. Optimal resource allocation requires an optimal mix of care services based on costs and benefits. Contrary to costs, benefits remain largely unknown. This study elicits preferences in the general elderly population for long-term care services for varying types of patients. A discrete choice experiment was conducted in a general population subsample aged 50-65 years (N = 1082) drawn from the Dutch Survey Sampling International panel. To ascertain relative preferences for long-term care and willingness to pay for these, participants were asked to choose the best of two care scenarios for four groups of hypothetical patients: frail and demented elderly, with and without partner. The scenarios described long-term care using ten attributes based on Social Production Function theory: hours of care, organized social activities, transportation, living situation, same person delivering care, room for individual preferences, coordination of services, punctuality, time on waiting list, and co-payments. We found the greatest value was attached to same person delivering care and transportation services. Low value was attached to punctuality and room for individual preferences. Nursing homes were generally considered to be detrimental for well-being except for dementia patients without a partner. Overall, long-term care services were thought to produce greatest well-being for the patients 'without a partner' and those 'with dementia'. Individuals combining these two risk factors would benefit the most from all services except transportation which was considered more important for the frail elderly. The results support the notion that long-term care services represent different value for different types of patients and that the value of a service depends upon the social context. Examination of patient profiles confirmed the notion that physical, mental and social vulnerability affect valuation of the services. Policy-making would profit from allocation models in which budgetary requirements of different services can be balanced against the well-being they produce for individuals. Copyright 2010 Elsevier Ltd. All rights reserved.

Pubic hair preferences, reasons for removal, and associated genital symptoms: comparisons between men and women.

PubMed

Butler, Scott M; Smith, Nicole K; Collazo, Erika; Caltabiano, Lucia; Herbenick, Debby

2015-01-01

Pubic hair grooming and removal are common behaviors among men and women. However, little is known about the reasons for grooming, preferred pubic hairstyle of sexual partners, and symptoms associated with regular grooming. This study aims to assess pubic hair removal/grooming practices, pubic hairstyle preferences, and genital outcomes associated with pubic hair removal among men and women in a college sample. Data were gathered from 1,110 participants (671 women and 439 men) at a large public Midwestern university and a small Southern public university. Items assessed demographics, pubic hair grooming and removal practices in the past 4 weeks, reasons for pubic hair status, preference for pubic hairstyle of sexual partners, and symptoms associated with removal and grooming. Most (95%) participants had removed their pubic hair on at least one occasion in the past 4 weeks with shaving being the most commonly reported hair removal technique by women (82%) and men (49%). Women were significantly more likely to report their typical status as hair-free (50% vs. 19%; χ(2) = 165.528, P < 0.001) and men were significantly more likely to prefer a hair-free sexual partner (60% vs. 24%; χ(2) = 211.712, P < 0.001). Genital itching was experienced on at least one occasion by 80.3% of pubic hair groomers and was the most commonly reported side effect. Genital grooming and pubic hair removal are common practices among both men and women of college-age. Women are likely to report stronger associations with feelings of cleanliness, comfort, sex appeal, social norms of their peer group, and affordability as reasons for their chosen pubic hair style. Women also report more experiences with genital side effects of pubic hair removal, an expected result as women are removing pubic hair more frequently and more completely than their male counterparts. © 2014 International Society for Sexual Medicine.

Self-Love or Other-Love? Explicit Other-Preference but Implicit Self-Preference

PubMed Central

Gebauer, Jochen E.; Göritz, Anja S.; Hofmann, Wilhelm; Sedikides, Constantine

2012-01-01

Do humans prefer the self even over their favorite other person? This question has pervaded philosophy and social-behavioral sciences. Psychology’s distinction between explicit and implicit preferences calls for a two-tiered solution. Our evolutionarily-based Dissociative Self-Preference Model offers two hypotheses. Other-preferences prevail at an explicit level, because they convey caring for others, which strengthens interpersonal bonds–a major evolutionary advantage. Self-preferences, however, prevail at an implicit level, because they facilitate self-serving automatic behavior, which favors the self in life-or-die situations–also a major evolutionary advantage. We examined the data of 1,519 participants, who completed an explicit measure and one of five implicit measures of preferences for self versus favorite other. The results were consistent with the Dissociative Self-Preference Model. Explicitly, participants preferred their favorite other over the self. Implicitly, however, they preferred the self over their favorite other (be it their child, romantic partner, or best friend). Results are discussed in relation to evolutionary theorizing on self-deception. PMID:22848605

High-risk individuals' perceptions of reproductive genetic testing for CDH1 mutations.

PubMed

Hallowell, Nina; Badger, Shirlene; Richardson, Sue; Caldas, Carlos; Hardwick, Richard H; Fitzgerald, Rebecca C; Lawton, Julia

2017-10-01

Reproductive genetic testing- PreNatal Diagnosis (PND) and Preimplantation Genetic Diagnosis (PGD)-for CDH1 mutations associated with Hereditary Diffuse Gastric Cancer (HDGC)is available in the UK. This qualitative interview study examined high-risk individuals' (n = 35) views of CDH1 reproductive genetic testing. Interviewees generally regarded reproductive genetic testing as an acceptable form of HDGC risk management. However, some were concerned that their genetic risks required them to plan reproduction and anticipated difficulties communicating this to reproductive partners. Individuals had a preference for PGD over PND because it avoided the need for a termination of pregnancy. However, those who had not yet had children expressed concerns about having to undergo IVF procedures and worries about their effectiveness and the need for embryo selection in PGD. It is suggested that high-risk individuals are provided with access to reproductive genetic counselling.

Mandatory, Preferred, or Discretionary: How the Classification of Domestic Violence Warrantless Arrest Laws Impacts Their Estimated Effects on Intimate Partner Homicide

ERIC Educational Resources Information Center

Zeoli, April M.; Norris, Alexis; Brenner, Hannah

2011-01-01

Warrantless arrest laws for domestic violence (DV) are generally classified as discretionary, preferred, or mandatory, based on the level of power accorded to police in deciding whether to arrest. However, there is a lack of consensus in the literature regarding how each state's law should be categorized. Using three classification schemes, this…

Quantitative genetic models of sexual selection by male choice.

PubMed

Nakahashi, Wataru

2008-09-01

There are many examples of male mate choice for female traits that tend to be associated with high fertility. I develop quantitative genetic models of a female trait and a male preference to show when such a male preference can evolve. I find that a disagreement between the fertility maximum and the viability maximum of the female trait is necessary for directional male preference (preference for extreme female trait values) to evolve. Moreover, when there is a shortage of available male partners or variance in male nongenetic quality, strong male preference can evolve. Furthermore, I also show that males evolve to exhibit a stronger preference for females that are more feminine (less resemblance to males) than the average female when there is a sexual dimorphism caused by fertility selection which acts only on females.

Social support needs identified by mothers affected by intimate partner violence.

PubMed

Letourneau, Nicole; Morris, Catherine Young; Stewart, Miriam; Hughes, Jean; Critchley, Kim A; Secco, Loretta

2013-09-01

In order to offer optimal supports and services for mothers affected by intimate partner violence (IPV), an understanding of these mothers' perceptions of support needs, resources, barriers to support, and preferences for support intervention is warranted. Moreover, the growing recognition of the effects of IPV on maternal-infant relationships and of the importance of these early relationships to long-term child health outcomes suggests interventions are needed to support optimal maternal-infant relationships in these families. Thus, 64 mothers exposed to IPV when their infants were below 12 months of age participated in a retrospective qualitative study to identify mothers' support needs, resources, barriers to support, and preferences for specific support interventions to promote optimal mother-infant relationships. Participants identified both personal needs (including needs for leaving or staying with the violent partner), along with intertwined needs to care for, and help, their infants cope with the experience of violence. Mothers reported that integrated services that include information and practical support from professionals with emotional and affirmation support from peers would promote positive, nurturing mother-infant relationships and healthy child development.

Surrogate utility estimation by long-term partners and unfamiliar dyads.

PubMed

Tunney, Richard J; Ziegler, Fenja V

2015-01-01

To what extent are people able to make predictions about other people's preferences and values?We report two experiments that present a novel method assessing some of the basic processes in surrogate decision-making, namely surrogate-utility estimation. In each experiment participants formed dyads who were asked to assign utilities to health related items and commodity items, and to predict their partner's utility judgments for the same items. In experiment one we showed that older adults in long-term relationships were able to accurately predict their partner's wishes. In experiment two we showed that younger adults who were relatively unfamiliar with one another were also able to predict other people's wishes. Crucially we demonstrated that these judgments were accurate even after partialling out each participant's own preferences indicating that in order to make surrogate utility estimations people engage in perspective-taking rather than simple anchoring and adjustment, suggesting that utility estimation is not the cause of inaccuracy in surrogate decision-making. The data and implications are discussed with respect to theories of surrogate decision-making.

When feeling bad is expected to be good: emotion regulation and outcome expectancies in social conflicts.

PubMed

Tamir, Maya; Ford, Brett Q

2012-08-01

According to the instrumental approach to emotion regulation, people may want to experience even unpleasant emotions to attain instrumental benefits. Building on value-expectancy models of self-regulation, we tested whether people want to feel bad in certain contexts specifically because they expect such feelings to be useful to them. In two studies, participants were more likely to try to increase their anger before a negotiation when motivated to confront (vs. collaborate with) a negotiation partner. Participants motivated to confront (vs. collaborate with) their partner expected anger to be more useful to them, and this expectation in turn, led them to try to increase their anger before negotiating. The subsequent experience of anger, following random assignment to emotion inductions (Study 1) or engagement in self-selected emotion regulation activities (Study 2), led participants to be more successful at getting others to concede to their demands, demonstrating that emotional preferences have important pragmatic implications.

The evolutionary psychology of mate selection in Morocco : A multivariate analysis.

PubMed

Walter, A

1997-06-01

Patterns of mate preference in Morocco are investigated in order to test whether they support hypotheses advanced by David Buss and other evolutionary psychologists. Because of the custom of cousin marriage in Morocco, a multivariate model that included cosocialization data was developed for the purpose of testing the Westermarck hypothesis of inbreeding avoidance. Hence, two previously separate domains of research are unified in one design that permits the further exploration of questions pertaining to the domain specificity of psychological mechanisms. Multiple independent mate choice predictors were identified using logistic regression analysis. Results support the Westermarck hypothesis of inbreeding avoidance. Sleeping in the same room during childhood was found in both sexes to produce an aversion to marriage. Other evidence suggests that aversion to inbreeding extends further among females than males in that females but not males show an aversion to marriage to related individuals with whom they had daily social contact in early childhood. The evolutionary prediction that females differ from males concerning resource holding capacity was also supported. Females showed a preference for males whom they judged to have higher social status than theirs, while this criterion was unimportant for males. The predicted sex difference in preferred age of marriage partner was also supported. Contrary to previous findings, the predicted difference between the sexes with regard to physical attractiveness was not supported.

Facilitating HIV status disclosure for pregnant women and partners in rural Kenya: a qualitative study.

PubMed

Walcott, Melonie M; Hatcher, Abigail M; Kwena, Zachary; Turan, Janet M

2013-12-02

Women's ability to safely disclose their HIV-positive status to male partners is essential for uptake and continued use of prevention of mother-to-child transmission (PMTCT) services. However, little is known about the acceptability of potential approaches for facilitating partner disclosure. To lay the groundwork for developing an intervention, we conducted formative qualitative research to elicit feedback on three approaches for safe HIV disclosure for pregnant women and male partners in rural Kenya. This qualitative acceptability research included in-depth interviews with HIV-infected pregnant women (n = 20) and male partners of HIV-infected women (n = 20) as well as two focus groups with service providers (n = 16). The participants were recruited at health care facilities in two communities in rural Nyanza Province, Kenya, during the period June to November 2011. Data were managed in NVivo 9 and analyzed using a framework approach, drawing on grounded theory. We found that facilitating HIV disclosure is acceptable in this context, but that individual participants have varying expectations depending on their personal situation. Many participants displayed a strong preference for couples HIV counseling and testing (CHCT) with mutual disclosure facilitated by a trained health worker. Home-based approaches and programs in which pregnant women are asked to bring their partners to the healthcare facility were equally favored. Participants felt that home-based CHCT would be acceptable for this rural setting, but special attention must be paid to how this service is introduced in the community, training of the health workers who will conduct the home visits, and confidentiality. Pregnant couples should be given different options for assistance with HIV disclosure. Home-based CHCT could serve as an acceptable method to assist women and men with safe disclosure of HIV status. These findings can inform the design and implementation of programs geared at promoting HIV disclosure among pregnant women and partners, especially in the home-setting.

Facilitating HIV status disclosure for pregnant women and partners in rural Kenya: a qualitative study

PubMed Central

2013-01-01

Background Women’s ability to safely disclose their HIV-positive status to male partners is essential for uptake and continued use of prevention of mother-to-child transmission (PMTCT) services. However, little is known about the acceptability of potential approaches for facilitating partner disclosure. To lay the groundwork for developing an intervention, we conducted formative qualitative research to elicit feedback on three approaches for safe HIV disclosure for pregnant women and male partners in rural Kenya. Methods This qualitative acceptability research included in-depth interviews with HIV-infected pregnant women (n = 20) and male partners of HIV-infected women (n = 20) as well as two focus groups with service providers (n = 16). The participants were recruited at health care facilities in two communities in rural Nyanza Province, Kenya, during the period June to November 2011. Data were managed in NVivo 9 and analyzed using a framework approach, drawing on grounded theory. Results We found that facilitating HIV disclosure is acceptable in this context, but that individual participants have varying expectations depending on their personal situation. Many participants displayed a strong preference for couples HIV counseling and testing (CHCT) with mutual disclosure facilitated by a trained health worker. Home-based approaches and programs in which pregnant women are asked to bring their partners to the healthcare facility were equally favored. Participants felt that home-based CHCT would be acceptable for this rural setting, but special attention must be paid to how this service is introduced in the community, training of the health workers who will conduct the home visits, and confidentiality. Conclusion Pregnant couples should be given different options for assistance with HIV disclosure. Home-based CHCT could serve as an acceptable method to assist women and men with safe disclosure of HIV status. These findings can inform the design and implementation of programs geared at promoting HIV disclosure among pregnant women and partners, especially in the home-setting. PMID:24294994

Associations between relationship support and psychological reactions of participants and partners to BRCA1 and BRCA2 testing in a clinic-based sample.

PubMed

Manne, Sharon; Audrain, Janet; Schwartz, Marc; Main, David; Finch, Clinton; Lerman, Caryn

2004-12-01

Despite the potential importance of communication about genetic testing between test participants and their significant others, little is known about social support and communication between women undergoing BRCA1 and BRCA2 testing and their partners. The aims of this longitudinal study were to examine communication about genetic testing during and following testing and to evaluate whether communication is associated with psychological distress reported by test participants and their partners. Participants were 153 women who were undergoing genetic testing and 118 partners of women undergoing testing. Relationship communication and distress were evaluated at the time of pretest education and 6 months postdisclosure. Overall, the decision to undergo testing was discussed by the majority of test participants and partners, and most couples felt their partners were supportive. Most women disclosed their results to their partners. Longitudinal analyses suggested that less support and protective buffering were associated with greater distress 6 months postdisclosure among test participants, whereas lower comfort in sharing concerns and partner support were associated with lower distress 6 months postdisclosure among partners. The results of this study suggest that the majority of couples respond supportively during the test experience, but for a small subset of couples the process can strain the relationship. Partner support during this process is important, particularly for test participants dealing with an uninformative test result.

Young people's views on the potential use of telemedicine consultations for sexual health: results of a national survey.

PubMed

Garrett, Cameryn C; Hocking, Jane; Chen, Marcus Y; Fairley, Christopher K; Kirkman, Maggie

2011-10-25

Young people are disproportionately affected by sexually transmissible infections in Australia but face barriers to accessing sexual health services, including concerns over confidentiality and, for some, geographic remoteness. A possible innovation to increase access to services is the use of telemedicine. Young people's (aged 16-24) pre-use views on telephone and webcam consultations for sexual health were investigated through a widely-advertised national online survey in Australia. Descriptive statistics were used to describe the study sample and chi-square, Mann-Whitney U test, or t-tests were used to assess associations. Multinomial logistic regression was used to explore the association between the three-level outcome variable (first preference in person, telephone or webcam, and demographic and behavioural variables); odds ratios and 95%CI were calculated using in person as the reference category. Free text responses were analysed thematically. A total of 662 people completed the questionnaire. Overall, 85% of the sample indicated they would be willing to have an in-person consultation with a doctor, 63% a telephone consultation, and 29% a webcam consultation. Men, respondents with same-sex partners, and respondents reporting three or more partners in the previous year were more willing to have a webcam consultation. Imagining they lived 20 minutes from a doctor, 83% of respondents reported that their first preference would be an in-person consultation with a doctor; if imagining they lived two hours from a doctor, 51% preferred a telephone consultation. The main objections to webcam consultations in the free text responses were privacy and security concerns relating to the possibility of the webcam consultation being recorded, saved, and potentially searchable and retrievable online. This study is the first we are aware of that seeks the views of young people on telemedicine and access to sexual health services. Although only 29% of respondents were willing to have a webcam consultation, such a service may benefit youth who may not otherwise access a sexual health service. The acceptability of webcam consultations may be increased if medical clinics provide clear and accessible privacy policies ensuring that consultations will not be recorded or saved.

Young people's views on the potential use of telemedicine consultations for sexual health: results of a national survey

PubMed Central

2011-01-01

Background Young people are disproportionately affected by sexually transmissible infections in Australia but face barriers to accessing sexual health services, including concerns over confidentiality and, for some, geographic remoteness. A possible innovation to increase access to services is the use of telemedicine. Methods Young people's (aged 16-24) pre-use views on telephone and webcam consultations for sexual health were investigated through a widely-advertised national online survey in Australia. Descriptive statistics were used to describe the study sample and chi-square, Mann-Whitney U test, or t-tests were used to assess associations. Multinomial logistic regression was used to explore the association between the three-level outcome variable (first preference in person, telephone or webcam, and demographic and behavioural variables); odds ratios and 95%CI were calculated using in person as the reference category. Free text responses were analysed thematically. Results A total of 662 people completed the questionnaire. Overall, 85% of the sample indicated they would be willing to have an in-person consultation with a doctor, 63% a telephone consultation, and 29% a webcam consultation. Men, respondents with same-sex partners, and respondents reporting three or more partners in the previous year were more willing to have a webcam consultation. Imagining they lived 20 minutes from a doctor, 83% of respondents reported that their first preference would be an in-person consultation with a doctor; if imagining they lived two hours from a doctor, 51% preferred a telephone consultation. The main objections to webcam consultations in the free text responses were privacy and security concerns relating to the possibility of the webcam consultation being recorded, saved, and potentially searchable and retrievable online. Conclusions This study is the first we are aware of that seeks the views of young people on telemedicine and access to sexual health services. Although only 29% of respondents were willing to have a webcam consultation, such a service may benefit youth who may not otherwise access a sexual health service. The acceptability of webcam consultations may be increased if medical clinics provide clear and accessible privacy policies ensuring that consultations will not be recorded or saved. PMID:22026640

The gender role motivation model of women's sexually submissive behavior and satisfaction in heterosexual couples.

PubMed

Sanchez, Diana T; Phelan, Julie E; Moss-Racusin, Corinne A; Good, Jessica J

2012-04-01

Previous findings suggest that women are more likely than men to take on the submissive role during sexual activities (e.g., waiting for their partner to initiate and orchestrate sexual activities), often to the detriment of their sexual satisfaction. Extending previous research on gender role motivation, the authors recruited 181 heterosexual couples to examine scripted sexual behavior, motivation for such behavior, and relationship outcomes (sexual satisfaction, perceptions of closeness, and relationship satisfaction) for both women and their partners. Using the actor-partner interdependence model, path analyses revealed that women's submissive behavior had negative links to personal sexual satisfaction and their partner's sexual satisfaction but only when their submission was inconsistent with their sexual preferences. Moreover, the authors show there are negative downstream consequences of diminished sexual satisfaction on perceptions of closeness and overall relationship satisfaction for both partners in the relationship.

Role of Partner Novelty in Sexual Functioning: A Review.

PubMed

Morton, Heather; Gorzalka, Boris B

2015-01-01

This review investigates whether sexual desire and arousal decline in response to partner familiarity, increase in response to partner novelty, and show differential responding in men and women. These questions were considered through the perspective of two leading evolutionary theories regarding human mating strategies: sexual strategies theory and attachment fertility theory. The hypotheses emerging from these theories were evaluated through a critical analysis of several areas of research including habituation of arousal to erotic stimuli, preferences regarding number of sexual partners, the effect of long-term monogamous relationships on sexual arousal and desire, and prevalence and risk factors associated with extradyadic behavior. The current literature best supports the predictions made by sexual strategies theory in that sexual functioning has evolved to promote short-term mating. Sexual arousal and desire appear to decrease in response to partner familiarity and increase in response to partner novelty in men and women. Evidence to date suggests this effect may be greater in men.

Violence against Deaf women: effect of partner hearing status.

PubMed

Anderson, Melissa L; Kobek Pezzarossi, Caroline M

2014-07-01

Using a sample of Deaf female undergraduate students, the current study sought to investigate the prevalence, correlates, and characteristics of intimate partner violence victimization in hearing-Deaf and Deaf-Deaf relationships. Initial results suggest that similarities in hearing status and communication preference are associated with increased levels of negotiation within these relationships. However, compatibility in these areas did not co-occur with significant decreases in physical, psychological, or sexual partner violence. Recommendations for future research as well as implications for clinical and educational practice are outlined. © The Author 2013. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

Mate choice could be random in female rats (Rattus norvegicus).

PubMed

Le Moëne, Olivia; Snoeren, Eelke M

2018-02-01

Female mate choice is often investigated in terms of reproductive success in order to understand how male characteristics contribute to sexual attractiveness. Previous studies have found that females rats prefer mating with their first encounter rather than males visited subsequently, suggesting that the rewarding value of this first encounter is enough to reinforce mating with the first partner. Using a multiple chambers paradigm, we allowed female rats to copulate freely with three males placed each in a different chamber. Then, we switched the males' position, and let the female interact with them freely again within the same session. We tested whether female mate choice was relying rather on a preferred male rat or on a preferred mating location. The results showed that females spent most time with the male in the chamber of 1st entry in the beginning, but as soon as male rats switched chambers, the female rat continued to copulate with the new male in the same chamber of 1st entry, instead of mating with her previously preferred male rat. This suggests that the male preference is an artefact of location preference. Therefore, female mate choice seems to be rather random than the consequence of an individual choice based on male characteristics. This finding, although contradictory with the intuitive feeling that mate choice is a crucial feature in sexual and reproductive behavior, is supported by several recent observations. In the coming years, behavioral neuroscience should bring light to the brain processes at work in random mate choice. Copyright © 2017 Elsevier Inc. All rights reserved.

Experience modulates the influence of gonadal hormones on sexual orientation of male rats.

PubMed

Matuszczyk, J V; Larsson, K

1994-03-01

The aim of this study was to investigate whether heterosexual experience influences the male's partner preference and the role of gonadal hormones, including several androgens and estradiol, on female-oriented behavior. In the first experiment, the animals were exposed to a four-stimuli test situation including a sexually active male, a castrated male, an estrous female, and an ovariectomized (ovx) female. Castrated naive and experienced male rats were implanted with either testosterone (T), estradiol (E2), or an empty tubing (blank) and compared to intact naive and experienced male rats. None of the naive animals, whether castrated or intact, showed a consistent preference for any of the four stimuli. Whereas when sexually experienced, only intact and T-treated males showed a female-oriented preference. In the second experiment, the animals were allowed to choose between an active male and an estrous female. Castrated naive male rats were implanted with either T, E2, or DHT, or injected daily SC with the synthetic nonaromatizable androgen, methyltrienelone (R 1881). Two groups of intact males, one consisting of experienced and the other of naive animals, were also included in this experiment. The experienced intact males showed a significant preference for the estrous female, while the intact naive males showed no preference for either of the two stimuli. After the animals had gained heterosexual experience, intact and androgen-treated males showed a significant preference for the female. Neither the administration of R 1881 nor E2 promoted a female-oriented behavior.(ABSTRACT TRUNCATED AT 250 WORDS)

Home-Based HIV Testing for Men Who Have Sex with Men in China: A Novel Community-Based Partnership to Complement Government Programs

PubMed Central

Qian, Han-Zhu; Wang, Li-Juan; Zhang, Zheng; Ding, Hai-Feng; Ji, Ya-Cheng; Li, Dong-liang; Xiao, Dong; Hazlitt, Melissa; Vermund, Sten H.; Xiu, Xiangfei; Bao, Yugang

2014-01-01

Background The coverage of HIV testing among Chinese men who have sex with men (MSM) remains low after the scale-up of free HIV testing at government-sponsored testing sites. We evaluated the feasibility of home-based HIV self-testing and the willingness to be HIV tested at community-based organizations (CBO). Methods We recruited MSM via on-line advertisement, where they completed an on-line informed consent and subsequent questionnaire survey. Eligible MSM received HIV rapid testing kits by mail, performed the test themselves and reported the result remotely. Results Of the 220 men taking a home-based HIV self-testing, 33 MSM (15%) were seropositive. Nearly 65% of the men reported that they were willing to take HIV testing at CBO, while 28% preferred receiving free HIV testing in the government programs at local Centers for Disease Control and Prevention (CDC). Older and lower-income MSM, those who self-reported homosexual orientation, men with no history of sexually transmitted diseases and a lower number of sexual partners in the past six months were associated with preference for taking HIV testing at CBOs. The top three self-reported existing barriers for HIV testing were: no perception of HIV risk (56%), fear of an HIV positive result being reported to the government (41%), and fear of a positive HIV test result (36%). Conclusion Home-based HIV self-testing is an alternative approach for increasing the coverage of HIV testing among Chinese MSM. CBO-based HIV testing is a potential alternative, but further studies are needed to evaluate its feasibility. PMID:25051160

Intimate Partner Violence is Associated with Voluntary Sterilization in Women.

PubMed

McCloskey, Laura Ann; Doran, Kelly A; Gerber, Megan R

2017-01-01

Intimate partner violence (IPV) may interfere with women's use of preferred forms of contraception, resulting in unwanted pregnancies forcing women to seek permanent sterilization. A history of child sexual abuse (CSA) presages the risk for IPV in adulthood setting the stage for adverse reproductive outcomes. To determine whether CSA and IPV are associated with women's voluntary sterilization when adjusting for demographics and reproductive health history. This cross-sectional study is based on in-person interviews of women (N = 278) drawn from outpatients surveyed in more than 10 different clinics (N = 2465). Women's history of gender-based violence and bilateral tubal ligation (BTL) were assessed. About half of the women had a past history of IPV and 29% disclosed CSA. CSA predicted later entry into an abusive relationship (odds ratio [OR] = 6.7). Sterilization was reported by 19.6%. Parity (3+ children), having had an abortion, and receipt of welfare were associated with sterilization in univariate tests. Among those women receiving a BTL, 74% had violent partners. Adjusted multivariate logistic regressions, adjusted for demographics and reproductive history, indicated that having had an abusive partner increased the odds of sterilization; parity was also highly associated. CSA exerted only an indirect influence on sterilization via entry into violent relationships. IPV raises the likelihood that women will choose sterilization. Despite the importance of women's access to permanent contraception, priority should be given to screening for gender-based violence and promoting interventions.

The effect of body coloration and group size on social partner preferences in female fighting fish (Betta splendens).

PubMed

Blakeslee, C; McRobert, S P; Brown, A C; Clotfelter, E D

2009-02-01

Females of the fighting fish Betta splendens have been shown to associate with other B. splendens females in a manner reminiscent of shoaling behavior. Since body coloration varies dramatically in this species, and since body coloration has been shown to affect shoalmate choice in other species of fish, we examined the influence of body coloration on association preferences in female B. splendens. In dichotomous choice tests, B. splendens females spent more time swimming near groups of females (regardless of coloration) than swimming near an empty chamber, and chose to swim near fish of similar coloration to their own when choosing between two distinctly colored groups of females. When examining the interplay between body coloration and group size, focal fish spent more time swimming near larger groups (N=5) of similarly colored fish than swimming near an individual female of similar coloration. However, focal fish showed no preference when presented with an individual female of similar coloration and a larger group of females of dissimilar coloration. These results suggest that association choices in B. splendens females are strongly affected by both body coloration and by group size.

Smooth leader or sharp follower? Playing the mirror game with a robot.

PubMed

Kashi, Shir; Levy-Tzedek, Shelly

2018-01-01

The increasing number of opportunities for human-robot interactions in various settings, from industry through home use to rehabilitation, creates a need to understand how to best personalize human-robot interactions to fit both the user and the task at hand. In the current experiment, we explored a human-robot collaborative task of joint movement, in the context of an interactive game. We set out to test people's preferences when interacting with a robotic arm, playing a leader-follower imitation game (the mirror game). Twenty two young participants played the mirror game with the robotic arm, where one player (person or robot) followed the movements of the other. Each partner (person and robot) was leading part of the time, and following part of the time. When the robotic arm was leading the joint movement, it performed movements that were either sharp or smooth, which participants were later asked to rate. The greatest preference was given to smooth movements. Half of the participants preferred to lead, and half preferred to follow. Importantly, we found that the movements of the robotic arm primed the subsequent movements performed by the participants. The priming effect by the robot on the movements of the human should be considered when designing interactions with robots. Our results demonstrate individual differences in preferences regarding the role of the human and the joint motion path of the robot and the human when performing the mirror game collaborative task, and highlight the importance of personalized human-robot interactions.

Decoding the representation of learned social roles in the human brain.

PubMed

Eger, Evelyn; Moretti, Laura; Dehaene, Stanislas; Sirigu, Angela

2013-10-01

Humans as social beings are profoundly affected by exclusion. Short experiences with people differing in their degree of prosocial behaviour can induce reliable preferences for including partners, but the neural mechanisms of this learning remain unclear. Here, we asked participants to play a short social interaction game based on "cyber-ball" where one fictive partner included and another excluded the subject, thus defining social roles (includer - "good", excluder - "bad"). We then used multivariate pattern recognition on high-resolution functional magnetic resonance imaging (fMRI) data acquired before and after this game to test whether neural responses to the partners' and neutral control faces during a perceptual task reflect their learned social valence. Support vector classification scores revealed a learning-related increase in neural discrimination of social status in anterior insula and anterior cingulate regions, which was mainly driven by includer faces becoming distinguishable from excluder and control faces. Thus, face-evoked responses in anterior insula and anterior cingulate cortex contain fine-grained information shaped by prior social interactions that allow for categorisation of faces according to their learned social status. These lasting traces of social experience in cortical areas important for emotional and social processing could provide a substrate of how social inclusion shapes future behaviour and promotes cooperative interactions between individuals. Copyright © 2013 Elsevier Ltd. All rights reserved.

Self-Presentation, Desired Partner Characteristics, and Sexual Behavior Preferences in Online Personal Advertisements of Men Seeking Non-Gay-Identified Men.

PubMed

Downing, Martin J; Schrimshaw, Eric W

2014-03-14

Despite attention to the sexual behaviors of non-gay-identified (NGI) men who have same-sex encounters, virtually no research has focused on issues of partner desirability and selection. Limited evidence suggests that a subgroup of men who have sex with men (MSM) advertise online for sexual encounters with NGI men. Exchange theory provided a framework to investigate this seeking of NGI men, based on the content of Internet personal advertisements for same-sex encounters. Researchers analyzed 282 ads posted to an online bulletin board. Ads by men who explicitly desired encounters with NGI men were compared with those by men who did not indicate this preference in potential partners. Multivariate analyses revealed that NGI-seeking men had significantly increased odds of identifying as discreet (Adjusted odds ratio [ AOR ] = 2.82), seeking a discreet encounter ( AOR = 4.68), seeking a masculine partner ( AOR = 2.18), being willing to host ( AOR = 2.77), as well as seeking oral-receptive sex ( AOR = 2.69), unprotected oral sex ( AOR = 6.76), and anal-receptive sex ( AOR = 2.18). Further, NGI-seeking ads were more likely to not mention condom use or safer sex practices ( AOR = 4.13) and were less likely to indicate a desire for oral-insertive sex ( AOR = 0.34) and rimming ( AOR = 0.21). Findings suggest that some men may deliberately present themselves in ways that they perceive as being attractive to NGI men, and have research implications for NGI MSM, their partners, and the risk outcomes of these online ads.

Self-Presentation, Desired Partner Characteristics, and Sexual Behavior Preferences in Online Personal Advertisements of Men Seeking Non-Gay-Identified Men

PubMed Central

Schrimshaw, Eric W.

2015-01-01

Despite attention to the sexual behaviors of non-gay-identified (NGI) men who have same-sex encounters, virtually no research has focused on issues of partner desirability and selection. Limited evidence suggests that a subgroup of men who have sex with men (MSM) advertise online for sexual encounters with NGI men. Exchange theory provided a framework to investigate this seeking of NGI men, based on the content of Internet personal advertisements for same-sex encounters. Researchers analyzed 282 ads posted to an online bulletin board. Ads by men who explicitly desired encounters with NGI men were compared with those by men who did not indicate this preference in potential partners. Multivariate analyses revealed that NGI-seeking men had significantly increased odds of identifying as discreet (Adjusted odds ratio [AOR] = 2.82), seeking a discreet encounter (AOR = 4.68), seeking a masculine partner (AOR = 2.18), being willing to host (AOR = 2.77), as well as seeking oral-receptive sex (AOR = 2.69), unprotected oral sex (AOR = 6.76), and anal-receptive sex (AOR = 2.18). Further, NGI-seeking ads were more likely to not mention condom use or safer sex practices (AOR = 4.13) and were less likely to indicate a desire for oral-insertive sex (AOR = 0.34) and rimming (AOR = 0.21). Findings suggest that some men may deliberately present themselves in ways that they perceive as being attractive to NGI men, and have research implications for NGI MSM, their partners, and the risk outcomes of these online ads. PMID:25750927

Chronic Intranasal Oxytocin Causes Long-term Impairments in Partner Preference Formation in Male Prairie Voles

PubMed Central

Bales, Karen L.; Perkeybile, Allison M.; Conley, Olivia G.; Lee, Meredith H.; Guoynes, Caleigh D.; Downing, Griffin M.; Yun, Catherine R.; Solomon, Marjorie; Jacob, Suma; Mendoza, Sally P.

2012-01-01

Background Oxytocin (OT) is a hormone shown to be involved in social bonding in animal models. Intranasal OT is currently in clinical trials for use in disorders such as autism and schizophrenia. We examined long-term effects of intranasal OT given developmentally in the prairie vole (Microtus ochrogaster), a socially monogamous rodent, often used as an animal model to screen drugs that have therapeutic potential for social disorders. Methods We treated voles with one of three dosages of intranasal OT, or saline, from day 21 (weaning) through day 42 (sexual maturity). We examined both social behavior immediately following administration, as well as long-term changes in social and anxiety behavior after treatment ceased. Group sizes varied from 8 to 15 voles (n = 89 voles total). Results Treatment with OT resulted in acute increases in social behavior in males with familiar partners, as seen in humans. However, long-term developmental treatment with low doses of intranasal OT resulted in a deficit in partner preference behavior (a reduction of contact with a familiar opposite-sex partner, used to index pair-bond formation) by males. Conclusions Long-term developmental treatment with OT may show results different to those predicted by short-term studies, as well as significant sex differences and dosage effects. Further animal study is crucial to determining safe and effective strategies for use of chronic intranasal OT, especially during development. PMID:23079235

Effects of partner beauty on opposite-sex attractiveness judgments.

PubMed

Little, Anthony C; Caldwell, Christine A; Jones, Benedict C; DeBruine, Lisa M

2011-12-01

Many studies show mate choice copying effects on mate preferences in non-human species in which individuals follow or copy the mate choices of same-sex conspecifics. Recent studies suggest that social learning also influences mate preferences in humans. Studies on heterosexual humans have focused on rating the attractiveness of potential mates (targets) presented alongside individuals of the opposite sex to the target (models). Here, we examined several different types of pairing to examine how specific social learning is to mate preferences. In Study 1, we replicated a previous effect whereby target faces of the opposite sex to the subject were rated as more attractive when paired with attractive than unattractive partner models of the same sex as the subject. Using the same paired stimuli, Study 2 demonstrated no effect of a paired model if subjects were asked to rate targets who were the same sex as themselves. In Study 3, we used pairs of the same sex, stating the pair were friends, and subjects rated targets of the opposite sex to themselves. Attractive models decreased targets' attractiveness, opposite to the effect in Study 1. Finally, Study 4 examined if attractive versus unattractive non-face stimuli might influence attraction. Unlike in Study 1, pairing with attractive stimuli either had no effect or decreased the attractiveness of paired target face images. These data suggest that social transmission of preferences via pairing with attractive/unattractive images is relatively specific to learning about mate preferences but does not influence attractiveness judgments more generally.

Does higher education expansion promote educational homogamy? Evidence from married couples of the post-80s generation in Shanghai, China.

PubMed

Hu, Anning; Qian, Zhenchao

2016-11-01

The expansion of higher education witnessed in many societies influences the pattern of educational assortative mating. Structural transition theory predicts growing educational homogamy due to increasing preference for highly-educated partners who become more widely available. In contrast, social closure theory suggests depressed educational homogamy because the inflation of the education elite circle fosters the openness of marriage market, reducing the preference for a highly-educated mate and increasing the penetrability across social-status boundaries. Capitalizing the survey data that are representative of the post-80s one-child generation collected in Shanghai, China, we test the hypotheses derived from the two theories. Empirical results suggest that, with increasing availability of highly educated individuals, the extent of educational homogamy by birth cohort reveals a U-shaped pattern. This U-shaped pattern demonstrates increasing levels of educational homogamy and lends support to structural transition theory. Copyright © 2016 Elsevier Inc. All rights reserved.

Adherence and acceptability in MTN 001: A randomized cross-over trial of daily oral and topical tenofovir for HIV prevention in women

PubMed Central

Minnis, Alexandra M.; Gandham, Sharavi; Richardson, Barbra A.; Guddera, Vijayanand; Chen, Beatrice A.; Salata, Robert; Nakabiito, Clemensia; Hoesley, Craig; Justman, Jessica; Soto-Torres, Lydia; Patterson, Karen; Gomez, Kailazarid; Hendrix, Craig

2012-01-01

We compared adherence to and acceptability of daily topical and oral formulations of tenofovir (TFV) used as pre-exposure prophylaxis (PrEP) for HIV prevention among women in South Africa, Uganda and the United States. 144 sexually active, HIV-uninfected women participated in a cross-over study of three regimens: oral tablet, vaginal gel, or both. We tested for differences in adherence and evaluated product acceptability. Self-reported adherence for all regimens was high (94%), but serum TFV concentrations indicated only 64% of participants used tablets consistently. Most women in the U.S. (72%) favored tablets over gel; while preferences varied at the African sites (42% preferred gel and 40% tablets). Findings indicate a role for oral and vaginal PrEP formulations and highlight the importance of integrating pharmacokinetics-based adherence assessment in future trials. Biomedical HIV prevention interventions should consider geographic and cultural experience with product formulations, partner involvement, and sexual health benefits that ultimately influence use. PMID:23065145

Height preferences in humans may not be universal: evidence from the Datoga people of Tanzania.

PubMed

Sorokowski, P; Butovskaya, M L

2012-09-01

Many studies in Western societies have shown that women prefer relatively taller men as potential partners, whereas men prefer women who are slightly shorter than themselves. Here, we discuss possible limitations of previous results within the context of the stimuli used (i.e., differences in the perceived body size of female silhouettes). Our results show that, at least in a Polish sample (N=231), modified stimuli did not essentially change the observed male-taller preferences. In contrast, we report height preferences in a traditional ethnic group, the Datoga people from Tanzania (N=107), in which men and women preferred extreme sexual dimorphism in stature (SDS) sets (i.e., men and women chose women much taller or much shorter than themselves). Thus, our data do not accord with the suggestion of a universal preference for taller men, but rather suggests that height preferences may be influenced by cultural, environmental, and ecological conditions. Copyright © 2012 Elsevier Ltd. All rights reserved.

Carbon dioxide sensing in an obligate insect-fungus symbiosis: CO2 preferences of leaf-cutting ants to rear their mutualistic fungus.

PubMed

Römer, Daniela; Bollazzi, Martin; Roces, Flavio

2017-01-01

Defense against biotic or abiotic stresses is one of the benefits of living in symbiosis. Leaf-cutting ants, which live in an obligate mutualism with a fungus, attenuate thermal and desiccation stress of their partner through behavioral responses, by choosing suitable places for fungus-rearing across the soil profile. The underground environment also presents hypoxic (low oxygen) and hypercapnic (high carbon dioxide) conditions, which can negatively influence the symbiont. Here, we investigated whether workers of the leaf-cutting ant Acromyrmex lundii use the CO2 concentration as an orientation cue when selecting a place to locate their fungus garden, and whether they show preferences for specific CO2 concentrations. We also evaluated whether levels preferred by workers for fungus-rearing differ from those selected for themselves. In the laboratory, CO2 preferences were assessed in binary choices between chambers with different CO2 concentrations, by quantifying number of workers in each chamber and amount of relocated fungus. Leaf-cutting ants used the CO2 concentration as a spatial cue when selecting places for fungus-rearing. A. lundii preferred intermediate CO2 levels, between 1 and 3%, as they would encounter at soil depths where their nest chambers are located. In addition, workers avoided both atmospheric and high CO2 levels as they would occur outside the nest and at deeper soil layers, respectively. In order to prevent fungus desiccation, however, workers relocated fungus to high CO2 levels, which were otherwise avoided. Workers' CO2 preferences for themselves showed no clear-cut pattern. We suggest that workers avoid both atmospheric and high CO2 concentrations not because they are detrimental for themselves, but because of their consequences for the symbiotic partner. Whether the preferred CO2 concentrations are beneficial for symbiont growth remains to be investigated, as well as whether the observed preferences for fungus-rearing influences the ants' decisions where to excavate new chambers across the soil profile.

Support intervention needs and preferences of fathers affected by postpartum depression.

PubMed

Letourneau, Nicole; Tryphonopoulos, Panagiota D; Duffett-Leger, Linda; Stewart, Miriam; Benzies, Karen; Dennis, Cindy-Lee; Joschko, Justin

2012-01-01

The effect of postpartum depression (PPD) on mothers has been extensively studied. But even though up to 50% of men whose partners suffer from PPD also have depressive symptoms, little is known about the impact of maternal PPD on fathers. Depressive symptoms are likely to decrease fathers' ability to provide maternal support. Children with 2 depressed parents are at significantly greater risk for poor developmental outcomes than those with 1 affected parent. The objective of this Canada-wide exploratory/descriptive study was to describe the support needs and preferences for support of fathers whose partners have had PPD. Qualitative methods and community-based research approaches were used, and one-to-one telephone interviews were conducted between 2009 and 2011 with a total of 40 fathers. Fathers desired support from both formal (professional) and informal (friends and family) sources and noted that ideal support interventions should cover a number of key topics including information on PPD and practical tips on how to cope with their partner's PPD. Fathers reported that the ideal PPD intervention program does not favor any one setup and, to reach the full spectrum of parents, the program must be multitiered, accessible, and as flexible as funding allows.

Fifty Shades Flipped: Effects of Reading Erotica Depicting a Sexually Dominant Woman Compared to a Sexually Dominant Man.

PubMed

Harris, Emily Ann; Thai, Michael; Barlow, Fiona Kate

2017-01-01

The present study examined the effects of reading submission- and dominance-themed erotica on attitudes toward women and rape, ideal partner preferences, and subjective sexual arousal. Heterosexual male (n = 241) and female (n = 240) participants read one of three erotic stories depicting male dominance, female dominance, or no dominance, or a fourth nonerotic control story. First, we found that after reading about a sexually dominant man, women reported increased benevolent sexism compared to men, and men reported increased rape myth acceptance compared to women. Second, men and women showed a similar level of preference for partner dominance after reading about a sexually dominant woman. This was in contrast to the typical pattern revealed in all other conditions, whereby women were more likely to favor dominant partners relative to men. Finally, we found no evidence to support the hypothesis that the story describing male dominance would be the most arousing. Rather, all three erotic stories were equally sexually arousing compared to the control condition, and men and women did not differ in the extent to which the erotic stories aroused them. Theoretical and practical implications are discussed.

Object, spatial and social recognition testing in a single test paradigm.

PubMed

Lian, Bin; Gao, Jun; Sui, Nan; Feng, Tingyong; Li, Ming

2018-07-01

Animals have the ability to process information about an object or a conspecific's physical features and location, and alter its behavior when such information is updated. In the laboratory, the object, spatial and social recognition are often studied in separate tasks, making them unsuitable to study the potential dissociations and interactions among various types of recognition memories. The present study introduced a single paradigm to detect the object and spatial recognition, and social recognition of a familiar and novel conspecific. Specifically, male and female Sprague-Dawley adult (>75 days old) or preadolescent (25-28 days old) rats were tested with two objects and one social partner in an open-field arena for four 10-min sessions with a 20-min inter-session interval. After the first sample session, a new object replaced one of the sampled objects in the second session, and the location of one of the old objects was changed in the third session. Finally, a new social partner was introduced in the fourth session and replaced the familiar one. Exploration time with each stimulus was recorded and measures for the three recognitions were calculated based on the discrimination ratio. Overall results show that adult and preadolescent male and female rats spent more time exploring the social partner than the objects, showing a clear preference for social stimulus over nonsocial one. They also did not differ in their abilities to discriminate a new object, a new location and a new social partner from a familiar one, and to recognize a familiar conspecific. Acute administration of MK-801 (a NMDA receptor antagonist, 0.025 and 0.10 mg/kg, i.p.) after the sample session dose-dependently reduced the total time spent on exploring the social partner and objects in the adult rats, and had a significantly larger effect in the females than in the males. MK-801 also dose-dependently increased motor activity. However, it did not alter the object, spatial and social recognitions. These findings indicate that the new triple recognition paradigm is capable of recording the object, spatial location and social recognition together and revealing potential sex and age differences. This paradigm is also useful for the study of object and social exploration concurrently and can be used to evaluate cognition-altering drugs in various stages of recognition memories. Copyright © 2018. Published by Elsevier Inc.

Predictive testing for Huntington's disease: relationship with partners after testing.

PubMed

Decruyenaere, M; Evers-Kiebooms, G; Cloostermans, T; Boogaerts, A; Demyttenaere, K; Dom, R; Fryns, J P

2004-01-01

This study focuses on the partner relationship of tested persons, 5 years after their predictive test result for Huntington's disease (HD). We describe changes in marital status, quality of the relationship, and perceived changes in the relationship. Twenty-six carriers, 14 of their partners, 33 non-carriers, and 17 of their partners participated in the study. Qualitative and quantitative methods were used. For the majority of tested persons (about 70%), the marital status was unchanged 5 years post test. Overall, carriers rated the quality of the relationship higher than their partners did and they perceived more positive changes. Qualitative data show that a test result leading to changed roles may induce significant marital distress. Another consequence of the test may be the changes in dynamics in asymptomatic carrier couples. A pre-test discussion of the possible impact of the test result on the relationship should result in a better preparation for and more understanding of the reactions after testing. Counselling after testing should stimulate an open communication between partners with consideration of needs and anxieties of both partners.

Cancer in a dyadic context: older couples' negotiation of ambiguity and search for meaning at the end of life.

PubMed

Gardner, Daniel S

2008-01-01

Ambiguity in the dying experience can be a major source of stress for older couples who must often balance the provision of care with respect for autonomy, aggressive treatment with quality-of-life, and individual with dyadic understandings and preferences. This study explores patterns of relationship, support, and communication in married or partnered couples where one partner is diagnosed with advanced and terminal cancer. Thirty-five older spousal/partner dyads participated in focused, semistructured interviews about relational aspects of their illness experiences. Faced with often uncertain and ambiguous circumstances, cancer patients and their partner caregivers describe the individual and dyadic processes that they have engaged in as they approach the end of life. Implications are highlighted for future research and practice with older adult couples at the end of life.

Modulation of value representation by social context in the primate orbitofrontal cortex.

PubMed

Azzi, João C B; Sirigu, Angela; Duhamel, Jean-René

2012-02-07

Primates depend for their survival on their ability to understand their social environment, and their behavior is often shaped by social circumstances. We report that the orbitofrontal cortex, a brain region involved in motivation and reward, is tuned to social information. Macaque monkeys worked to collect rewards for themselves and two monkey partners. Behaviorally, monkeys discriminated between cues signaling large and small [corrected] rewards, and between cues signaling rewards to self only and reward to both self and another monkey, with a preference for the former over the latter in both instances. Single neurons recorded during this task encoded the meaning of visual cues that predicted the magnitude of future rewards, as well as the motivational value of rewards obtained in a social context. Furthermore, neuronal activity was found to track momentary social preferences and partner's identity and social rank. The orbitofrontal cortex thus contains key neuronal mechanisms for the evaluation of social information.

Multinational investigation of cross-societal cooperation.

PubMed

Dorrough, Angela Rachael; Glöckner, Andreas

2016-09-27

In a globalized world, establishing successful cooperation between people from different nations is becoming increasingly important. We present results from a comprehensive investigation of cross-societal cooperation in one-shot prisoner's dilemmas involving population-representative samples from six countries and identify crucial facilitators of and obstacles to cooperation. In interactions involving mutual knowledge about only the other players' nationalities, we demonstrate that people hold strong and transnationally shared expectations (i.e., stereotypes) concerning the cooperation level of interaction partners from other countries. These expectations are the strongest determinants of participant cooperation. Paradoxically, however, they turn out to be incorrect stereotypes that even correlate negatively with reality. In addition to erroneous expectations, participants' cooperation behavior is driven by (shared) social preferences that vary according to the interaction partner's nationality. In the cross-societal context, these social preferences are influenced by differences in wealth and ingroup favoritism, as well as effects of specific country combinations but not by spatial distance between nations.

Personality differentially affects individual mate choice decisions in female and male Western mosquitofish (Gambusia affinis).

PubMed

Chen, Bo-Jian; Liu, Kai; Zhou, Lin-Jun; Gomes-Silva, Guilherme; Sommer-Trembo, Carolin; Plath, Martin

2018-01-01

Consistent individual differences in behavioral tendencies (animal personality) can affect individual mate choice decisions. We asked whether personality traits affect male and female mate choice decisions similarly and whether potential personality effects are consistent across different mate choice situations. Using western mosquitofish (Gambusia affinis) as our study organism, we characterized focal individuals (males and females) twice for boldness, activity, and sociability/shoaling and found high and significant behavioral repeatability. Additionally, each focal individual was tested in two different dichotomous mate choice tests in which it could choose between computer-animated stimulus fish of the opposite sex that differed in body size and activity levels, respectively. Personality had different effects on female and male mate choice: females that were larger than average showed stronger preferences for large-bodied males with increasing levels of boldness/activity (i.e., towards more proactive personality types). Males that were larger than average and had higher shoaling tendencies showed stronger preferences for actively swimming females. Size-dependent effects of personality on the strength of preferences for distinct phenotypes of potential mating partners may reflect effects of age/experience (especially in females) and social dominance (especially in males). Previous studies found evidence for assortative mate choice based on personality types or hypothesized the existence of behavioral syndromes of individuals' choosiness across mate choice criteria, possibly including other personality traits. Our present study exemplifies that far more complex patterns of personality-dependent mate choice can emerge in natural systems.

HIV testing among male partners of pregnant women in Nigeria: a missing link in the elimination of mother-to-child transmission of HIV.

PubMed

Olakunde, Babayemi O; Adeyinka, Daniel A; Oladele, Tolulope; Ozigbu, Chamberline E

2018-03-01

In this study, we assessed male partner testing and the serodiscordance rate among pregnant women and their partners in the prevention of mother-to-child transmission (PMTCT) programme in Nigeria. We conducted a retrospective analysis of the consolidated national health sector PMTCT data over a five-year period (2012-2016). Over the period, a total of 11,833,062 pregnant women were tested for HIV with a positivity rate of 2.2%. About 266,188 (2.2%) of sexual partners of pregnant women who presented at PMTCT clinics had an HIV test within the period. The uptake of male partner testing varied across the years, ranging from 22,269 (1.7%) in 2012 to 90,603 (2.9%) in 2014 (χ 2 for trend = 1320; p < 0.001). Overall, the proportion of partners of HIV-negative pregnant women who tested was higher than the proportion of partners of HIV-positive pregnant women (81% versus 19%, respectively). The serodiscordance rate among partners who tested over the five-year period was 18%. The serodiscordance rate declined from 24% in 2012 to 13% in 2016 (χ 2 for trend = 1202; p < 0.001). Partner testing in the PMTCT programme in Nigeria has remained low in the last five years while the clinic-based serodiscordance rate among partners appears to be declining. There is a need for multilevel interventions to address the possible barriers to partner testing in the PMTCT programme and intensification of the HIV combination prevention approach in the HIV response.

Analysis of the origin of predictability in human communications

NASA Astrophysics Data System (ADS)

Zhang, Lin; Liu, Yani; Wu, Ye; Xiao, Jinghua

2014-01-01

Human behaviors in daily life can be traced by their communications via electronic devices. E-mails, short messages and cell-phone calls can be used to investigate the predictability of communication partners’ patterns, because these three are the most representative and common behaviors in daily communications. In this paper, we show that all the three manners have apparent predictability in partners’ patterns, and moreover, the short message users’ sequences have the highest predictability among the three. We also reveal that people with fewer communication partners have higher predictability. Finally, we investigate the origin of predictability, which comes from two aspects: one is the intrinsic pattern in the partners sequence, that is, people have the preference of communicating with a fixed partner after another fixed one. The other aspect is the burst, which is communicating with the same partner several times in a row. The high burst in short message communication pattern is one of the main reasons for its high predictability, the intrinsic pattern in e-mail partners sequence is the main reason for its predictability, and the predictability of cell-phone call partners sequence comes from both aspects.

The ovine sexually dimorphic nucleus, aromatase, and sexual partner preferences in sheep.

PubMed

Roselli, C E; Stormshak, F

2010-02-28

We are using the domestic ram as an experimental model to examine the role of aromatase in the development of sexual partner preferences. This interest has arisen because of the observation that as many as 8% of domestic rams are sexually attracted to other rams (male-oriented) in contrast to the majority of rams that are attracted to estrous ewes (female-oriented). Our findings demonstrate that aromatase expression is enriched in a cluster of neurons in the medial preoptic nucleus called the ovine sexually dimorphic nucleus (oSDN). The size of the oSDN is associated with a ram's sexual partner preference, such that the nucleus is 2-3 times larger in rams that are attracted to females (female-oriented) than in rams that are attracted to other rams (male-oriented). Moreover, the volume of the oSDN in male-oriented rams is similar to the volume in ewes. These volume differences are not influenced by adult concentrations of serum testosterone. Instead, we found that the oSDN is already present in late gestation lamb fetuses (approximately day 135 of gestation) when it is approximately 2-fold greater in males than in females. Exposure of genetic female fetuses to exogenous testosterone during the critical period for sexual differentiation masculinizes oSDN volume and aromatase expression when examined subsequently on day 135. The demonstration that the oSDN is organized prenatally by testosterone exposure suggests that the brain of the male-oriented ram may be under-androgenized during development. Copyright 2009 Elsevier Ltd. All rights reserved.

Changes in Sleep Time and Sleep Quality across the Ovulatory Cycle as a Function of Fertility and Partner Attractiveness

PubMed Central

Goetz, Aaron T.

2014-01-01

Research suggests that near ovulation women tend to consume fewer calories and engage in more physical activity; they are judged to be more attractive, express greater preferences for masculine and symmetrical men, and experience increases in sexual desire for men other than their primary partners. Some of these cycle phase shifts are moderated by partner attractiveness and interpreted as strategic responses to women's current reproductive context. The present study investigated changes in sleep across the ovulatory cycle, based on the hypothesis that changes in sleep may reflect ancestral strategic shifts of time and energy toward reproductive activities. Participants completed a 32-day daily diary in which they recorded their sleep time and quality for each day, yielding over 1,000 observations of sleep time and quality. Results indicated that, when the probability of conception was high, women partnered with less attractive men slept more, while women with more attractive partners slept less. PMID:24710508

[Erectile dysfunction drugs and women].

PubMed

Elia, D; Grivel, T; Lachowsky, M; Costa, P; Amar, E

2005-09-01

Erectile dysfunction (ED) is no more a taboo and the number of patients who are consulting a physician and asking for some help in this domain is growing every day. The quality of life of men presenting an ED and having access to treatments is continually improving. But what can be said concerning the partners' quality of life? Patients as much their partners clearly prefer lesser invasive therapeutics and the new oral drugs available present some advantages for the couples, and surely for a majority of female partners, willing to improve the spontaneity and the frequency of intercourse. It seems now obvious that the partner's help is one of the key points for a successful treatment. How will women facing this recovered virility react? What will they say in the secret of the consulting room? What could be exactly the role of the gynaecologist in assuming the female partner of a man treated for an ED? That is the object of the present article, dealing with quite an important matter.

Robotic gaming prototype for upper limb exercise: Effects of age and embodiment on user preferences and movement.

PubMed

Eizicovits, Danny; Edan, Yael; Tabak, Iris; Levy-Tzedek, Shelly

2018-01-01

Effective human-robot interactions in rehabilitation necessitates an understanding of how these should be tailored to the needs of the human. We report on a robotic system developed as a partner on a 3-D everyday task, using a gamified approach. To: (1) design and test a prototype system, to be ultimately used for upper-limb rehabilitation; (2) evaluate how age affects the response to such a robotic system; and (3) identify whether the robot's physical embodiment is an important aspect in motivating users to complete a set of repetitive tasks. 62 healthy participants, young (<30 yo) and old (>60 yo), played a 3D tic-tac-toe game against an embodied (a robotic arm) and a non-embodied (a computer-controlled lighting system) partner. To win, participants had to place three cups in sequence on a physical 3D grid. Cup picking-and-placing was chosen as a functional task that is often practiced in post-stroke rehabilitation. Movement of the participants was recorded using a Kinect camera. The timing of the participants' movement was primed by the response time of the system: participants moved slower when playing with the slower embodied system (p = 0.006). The majority of participants preferred the robot over the computer-controlled system. Slower response time of the robot compared to the computer-controlled one only affected the young group's motivation to continue playing. We demonstrated the feasibility of the system to encourage the performance of repetitive 3D functional movements, and track these movements. Young and old participants preferred to interact with the robot, compared with the non-embodied system. We contribute to the growing knowledge concerning personalized human-robot interactions by (1) demonstrating the priming of the human movement by the robotic movement - an important design feature, and (2) identifying response-speed as a design variable, the importance of which depends on the age of the user.

Knowledge and acceptability of Chlamydia trachomatis screening among pregnant women and their partners; a cross-sectional study

PubMed Central

2014-01-01

Background Chlamydia trachomatis infections in pregnancy can cause maternal disease, adverse pregnancy outcomes and neonatal disease, which is why chlamydia screening during pregnancy has been advocated. The effectiveness of a screening program depends on the knowledge of health care professionals, women and partners and the acceptability for screening of the target population. We assessed the knowledge of chlamydia infection among pregnant women and their partners in the Netherlands, their attitudes towards testing, and their experiences of being offered a chlamydia test. In addition, we evaluated the association between participants’ background characteristics and knowledge of chlamydia. Methods Pregnant women aged ≤ 30 years and their partners (regardless of their age) attending one of the participating primary midwifery care practices in the Netherlands were invited to participate. All participants completed a questionnaire, pregnant women provided a vaginal swab and partners provided a urine sample to test for C. trachomatis. Results In total, 383 pregnant women and 282 partners participated in the study of whom 1.9% women and 2.6% partners tested chlamydia positive. Participants had high levels of awareness (92.8%) of chlamydial infection. They were knowledgeable about the risk of chlamydia infection; median knowledge score was 9.0 out of 12.0. Lower knowledge scores were found among partners (p-value <0.001), younger aged (p-value 0.02), non-western origin (p-value <0.001), low educational level (p-value <0.001), and no history of sexually transmitted infections (p-value <0.001). In total, 78% of respondents indicated that when pregnant women are tested for chlamydia, their partners should also be tested; 54% believed that all women should routinely be tested. Pregnant women more often indicated than partners that testing partners for chlamydial infection was not necessary (p-value <0.001). The majority of pregnant women (56.2%) and partners (59.2%) felt satisfied by being offered the test during antenatal care. Conclusion Pregnant women and their partners were knowledgeable about chlamydial infection, found testing, both pregnant women and their partners, for chlamydia acceptable and not stigmatizing. PMID:25011479

Knowledge and acceptability of Chlamydia trachomatis screening among pregnant women and their partners; a cross-sectional study.

PubMed

Pereboom, Monique T R; Spelten, Evelien R; Manniën, Judith; Rours, G Ingrid J G; Morré, Servaas A; Schellevis, François G; Hutton, Eileen K

2014-07-09

Chlamydia trachomatis infections in pregnancy can cause maternal disease, adverse pregnancy outcomes and neonatal disease, which is why chlamydia screening during pregnancy has been advocated. The effectiveness of a screening program depends on the knowledge of health care professionals, women and partners and the acceptability for screening of the target population. We assessed the knowledge of chlamydia infection among pregnant women and their partners in the Netherlands, their attitudes towards testing, and their experiences of being offered a chlamydia test. In addition, we evaluated the association between participants' background characteristics and knowledge of chlamydia. Pregnant women aged ≤ 30 years and their partners (regardless of their age) attending one of the participating primary midwifery care practices in the Netherlands were invited to participate. All participants completed a questionnaire, pregnant women provided a vaginal swab and partners provided a urine sample to test for C. trachomatis. In total, 383 pregnant women and 282 partners participated in the study of whom 1.9% women and 2.6% partners tested chlamydia positive. Participants had high levels of awareness (92.8%) of chlamydial infection. They were knowledgeable about the risk of chlamydia infection; median knowledge score was 9.0 out of 12.0. Lower knowledge scores were found among partners (p-value <0.001), younger aged (p-value 0.02), non-western origin (p-value <0.001), low educational level (p-value <0.001), and no history of sexually transmitted infections (p-value <0.001). In total, 78% of respondents indicated that when pregnant women are tested for chlamydia, their partners should also be tested; 54% believed that all women should routinely be tested. Pregnant women more often indicated than partners that testing partners for chlamydial infection was not necessary (p-value <0.001). The majority of pregnant women (56.2%) and partners (59.2%) felt satisfied by being offered the test during antenatal care. Pregnant women and their partners were knowledgeable about chlamydial infection, found testing, both pregnant women and their partners, for chlamydia acceptable and not stigmatizing.

Cross-cultural perspectives on decision making regarding noninvasive prenatal testing: A comparative study of Lebanon and Quebec.

PubMed

Haidar, Hazar; Vanstone, Meredith; Laberge, Anne-Marie; Bibeau, Gilles; Ghulmiyyah, Labib; Ravitsky, Vardit

2018-01-01

Noninvasive prenatal testing (NIPT), based on the detection of cell-free fetal DNA in maternal blood, has transformed the landscape of prenatal care by offering clinical benefits (noninvasive, high specificity and sensitivity, early detection of abnormalities) compared to existing prenatal screening tests. NIPT has expanded rapidly and is currently commercially available in most of the world. As NIPT spreads globally, culturally sensitive and ethically sound implementation will require policies that take into consideration the social and cultural context of prenatal testing decisions. In a Western context, the main ethical argument for providing access and public funding of prenatal tests is the promotion of reproductive autonomy (also referred to as "procreative liberty" and "reproductive freedom"), by enabling pregnant women and couples to access information about the fetus in order to choose a certain course of action for pregnancy management (continuation of pregnancy and preparation for birth or termination). So how is the framework of reproductive autonomy operationalized in non-Western cultural contexts? We used Quebec, Canada, and Beirut, Lebanon, for case studies to explore what ethical considerations related to reproductive autonomy should guide the implementation of the test in various cultural contexts. To answer this question, we conducted a qualitative study to (1) explore the perceptions, values, and preferences of pregnant women and their partners about NIPT and (2) examine how these values and perceptions influence reproductive autonomy and decision making in relation to NIPT in these two different cultural settings, Lebanon and Quebec. Our findings may guide health care professionals in providing counseling and in helping women and their partners make better informed prenatal testing decisions. Further, at a policy level, such understanding might inform the development of local guidelines and policies that are appropriate to each context.

Post-coma persons emerging from a minimally conscious state with multiple disabilities make technology-aided phone contacts with relevant partners.

PubMed

Lancioni, Giulio E; Singh, Nirbhay N; O'Reilly, Mark F; Sigafoos, Jeff; Oliva, Doretta; Campodonico, Francesca; D'Amico, Fiora; Buonocunto, Francesca; Sacco, Valentina; Didden, Robert

2013-10-01

Post-coma individuals emerging from a minimally conscious state with multiple disabilities may enjoy contact with relevant partners (e.g., family members and friends), but may not have easy access to them. These two single-case studies assessed whether those individuals could make contact with partners through computer-aided telephone technology and enjoy such contact. The technology involved a computer system with special software, a global system for mobile communication modem (GSM), and microswitch devices. In Study I, the computer system presented a 23-year-old man the names of the partners that he could contact, one at a time, automatically. Together with each partner's name, the system also presented the voice of the partner asking the man whether he wanted to call him or her. The man could (a) place a call to that partner by activating a camera-based microswitch through mouth movements or (b) bypass that partner and wait for the next one to be presented. In Study II, the system presented a 36-year-old man the partners' names only after he had activated his wobble microswitch with a hand movement. The man could place a call or bypass a partner as in Study I. The results showed that both men (a) were able to contact relevant partners through the technology, (b) seemed to enjoy their telephone-mediated communication contacts with the partners, and (c) showed preferences among the partners. Implications of the findings are discussed. Copyright © 2013 Elsevier Ltd. All rights reserved.

Condom-use intentions and the influence of partner-related barriers among women at risk for HIV.

PubMed

Bonacquisti, Alexa; Geller, Pamela A

2013-12-01

To examine intentions to engage in condom use and potential partner-related barriers to condom use, including intimate partner violence (IPV), low levels of sexual relationship power and perceptions of monogamy, among women at risk for HIV. In the United States, women account for approximately one in four new HIV infections. Despite the effectiveness of consistent condom use, women often confront biological, cultural and psychosocial barriers that limit their ability to engage in condom-use. Cross-sectional, quantitative study. Participants (N = 90) were recruited from a domestic violence shelter, a domestic violence support organisation and an obstetrics/gynaecology clinic in Philadelphia, PA. Data were collected by questionnaires to assess women's condom-use intentions, actual condom-use behaviour, sexual partner risk factors, experience of IPV, level of sexual relationship power and perceptions of monogamy. Fifty-eight per cent of participants (n = 52) indicated a difference between their preference and intentions to use condoms vs. their actual use, with 62% (n = 32) using condoms less frequently than they would like. Significant differences in condom use emerged for women with low vs. high sexual relationship power and women who reported being in a monogamous relationship vs. those who did not. Of particular concern, a majority of these relationships were with high-risk partners, further increasing women's already elevated risk of acquiring HIV. Condom use is a multifaceted issue, particularly in sexual relationships involving power differentials and perceived monogamy. Condom use was complicated by women's own preferences, sexual relationship power differentials and by the perceived exclusivity of the relationship with their sexual partners. These findings have important implications for nurses as they are uniquely positioned to facilitate HIV risk reduction among their patients through the discussion of sexual health issues and barriers to negotiating condom use that women may confront. © 2013 Blackwell Publishing Ltd.

The importance of sexual self-disclosure to sexual satisfaction and functioning in committed relationships.

PubMed

Rehman, Uzma S; Rellini, Alessandra H; Fallis, Erin

2011-11-01

Past research indicates that sexual self-disclosure, or the degree to which an individual is open with his or her partner about sexual preferences, is a key aspect of sexual satisfaction and that partner's lack of knowledge about one's sexual preferences is associated with persistent sexual dysfunction. To replicate and extend past research by examining (i) how one's own levels of sexual self-disclosure are related to one's own sexual health (after controlling for partner's levels of sexual self-disclosure); (ii) how one's partner's levels of sexual self-disclosure are associated with one's own sexual health (after controlling for one's own levels of sexual self-disclosure); and (iii) whether gender moderates the associations between sexual self-disclosure and sexual health. Scores from the Golombok Rust Inventory of Sexual Satisfaction and the Sexual Communication Satisfaction Scale. A cross-sectional dyadic study using a convenience sample of 91 heterosexual couples in long-term committed relationships. Data were analyzed using the Actor-Partner Interdependence Model. One's own level of sexual self-disclosure is positively associated with one's own sexual satisfaction, β = -0.24, t(172.85) = -3.50, P < 0.001. Furthermore, partner's level of sexual self-disclosure is associated with men's sexual satisfaction but not with women's sexual satisfaction, β = -0.45, t(86.81) = -4.06, P < 0.001 and β = 0.02, t(87.00) = 0.20, ns, respectively. The association between own self-disclosure and sexual problems is stronger for women as compared with men, β = -0.72, t(87.00) = -6.31, P < 0.001 and β = -0.24, t(86.27) = -3.04, P < 0.01, respectively. Our results demonstrate that sexual self-disclosure is significantly associated with sexual satisfaction and functioning for both men and women, albeit in different ways. Our findings underscore the importance of sexual self-disclosure and highlight the importance of the interpersonal level of analysis in understanding human sexuality. © 2011 International Society for Sexual Medicine.

Dyadic fertility decisions in a life course perspective.

PubMed

Bauer, Gerrit; Kneip, Thorsten

2014-09-01

This paper focuses on how couples arrive at joint decisions with regard to fertility behaviour. We build upon previous work on decision rules that couples might apply as heuristics in order to arrive at joint action in cases in which partners' fertility preferences differ. Previous research found either stronger effects of women's desires or symmetrical effects of both spouses' desires and net benefits associated with (further) children on proceptive behaviour. The latter finding is in line with the notion of household utility maximisation, in which both partners' preferences enter into a joint utility function with equal weight. On the other hand, some evidence indicates that one partner can exercise a 'veto' if he or she anticipates individual utility losses from a further child (due to opportunity costs arising in other life domains). We now enhance previous research by applying a life-course perspective. Our analysis makes use of variation in initial conditions due to previous births: couples decide on fertility in different situations as they find themselves in different life course stages and have had certain experiences. Parity-specific differences affect not only fertility outcomes but also the decision-making process itself. Our findings show that the decision to have a first child is made jointly, and each partner may exercise a veto. On the other hand, women appear to dominate decisions on higher parity births, not per se, but because they are (still) the ones more affected by the concomitant housework. Copyright © 2013 Elsevier Ltd. All rights reserved.

Reproductive decision-making among postpartum HIV-infected women in rural South Africa.

PubMed

Jones, Deborah L; Rodriguez, Violeta J; Babayigit, Suat; Chahine, Antonio; Weiss, Stephen M; Peltzer, Karl

2018-01-01

Despite pregnancy spacing recommendations to optimize health outcomes among mothers and neonates, unplanned pregnancy in sub-Saharan Africa is common among women living with human immunodeficiency virus (HIV) (WLHIV). This study examined factors associated with reproductive decision-making among WLHIV to inform pregnancy-planning interventions. WLHIV in rural South Africa (n = 165) were assessed at 12 months postpartum. The relative importance of factors associated with reproductive decision-making was estimated. Women were a mean of 28 years old (SD = 5.71). Risk of mother-to-child transmission (MTCT) of HIV (Mean = 0.43; SD = 0.33) had the greatest impact on decision-making, followed by partners' desires (M = 0.22; SD = 0.18), family preferences (M = 0.18; SD = 0.13), and community opinion (M = 0.17; SD = 0.13). MTCT was most important to women with greater HIV knowledge. However, WLHIV who had been diagnosed with HIV for a longer time placed more emphasis on partner preference and community opinion, and less importance on MTCT risk. Prevention of mother-to-child transmission (PMTCT) was less important to women experiencing intimate partner violence and those with depression. Findings highlight the need for tailored, focused interventions to support the unique circumstances of WLHIV and support the inclusion of families and/or partners in the counseling process. Results underscore the need for perinatal preconception counseling for women during routine HIV care.

Development of culturally tailored educational brochures on HPV and pap tests for American Indian women.

PubMed

Sharpe, Patricia A; Brandt, Heather M; McCree, Donna H; Owl-Myers, Elizabeth; Taylor, Betty; Mullins, Glenda

2013-07-01

Participatory formative research guided the creation of a culturally tailored educational brochure about human papillomavirus (HPV) at an American Indian women's clinic. A review of existing educational materials and in-depth interviews were conducted. Nine steps for creating health communications messages that were patterned after National Cancer Institute guidelines guided the brochure development process. Of 95 women tested for HPV, 41% were positive, 32 (34%) agreed to the in-depth interview, and 9 agreed to the pretesting interview. Mean age was 41 years. Interviews revealed key themes concerning emotional reactions to abnormal Pap test results and HPV; need for basic information about HPV, Pap tests, and results; concerns about HPV stigma, sexual transmission, and communication with sexual partner; and the preferred source and format for HPV educational materials. A literature review revealed 12 areas of basic HPV content. A participatory process successfully engaged nursing staff and patients in creating culturally appropriate brochures for clinic use. This article provides specific steps for creating culturally tailored patient education materials.

Partner roles in contraceptive use: what do adolescent mothers say?

PubMed

Lewis, Dinah A; Martins, Summer L; Gilliam, Melissa L

2012-12-01

To examine the role of sexual partners in adolescent mothers' use of non-coital dependent contraceptive methods in the postpartum period. 40 African American adolescent mothers completed surveys and qualitative interviews during the first postpartum year as part of a larger longitudinal study in Chicago, Illinois. Themes related to contraception and sexual partners were analyzed. Adolescent mothers' reports of partners' roles in the use of non-coital dependent contraceptive methods (i.e., oral contraceptives, intrauterine contraception, and depot medroxyprogesterone acetate). Partners largely supported the use of non-coital dependent contraceptive methods, yet mechanisms of support varied greatly, from advocating for specific methods to facilitating participants' continuation of their chosen method. Unsupportive partners either expressed concerns about the safety and side effects of specific methods or desired another child in the near future. Participants valued these preferences to different degrees when making their contraceptive decisions. Partners of adolescent mothers play varying roles in postpartum contraceptive decisions. They thus have the potential both to inhibit and to facilitate the use of non-coital dependent contraception. Quantitative research is needed to further evaluate how partner attitudes and support behaviors, among other factors, affect contraceptive initiation and continuation among adolescent mothers. Copyright © 2012 North American Society for Pediatric and Adolescent Gynecology. Published by Elsevier Inc. All rights reserved.

The other side of the bridge: exploring the sexual relationships of men who have sex with men and their female partners in Mumbai, India

PubMed Central

Closson, Elizabeth F.; Sivasubramanian, Murugesan; Mayer, Kenneth H.; Srivastava, Ankur; Safren, Steven A.; Anand, Vivek Raj; Gangakhedkar, Raman

2014-01-01

Behaviourally bisexual men have been identified as a ‘bridge’ population of HIV transmission to heterosexual women in India. Little is known about the sexual relationships that these men have with their female sex partners. The primary objective of this study was to explore the sexual practices and relationship dynamics between married and unmarried behaviourally bisexual men and their female sex partners in Mumbai, India. In 2009, semi-structured qualitative interviews were conducted with 32 men who reported sex with men and women. Participants discussed a variety of sexual practices and arrangements with female sex partners. Irrespective of marital status and sexual identity, many said that they had satisfying sexual experiences and feelings of affection for female sex partners. However, sexual incompatibility between married partners was also reported. Explanations of bisexual concurrency were discussed in terms of both sexual satisfaction and sexual preference. Self-perceived HIV risk related to same-sex sexual behaviour motivated many men to use condoms with female partners. Expectations of unprotected marital sex and perceptions of partner risk were barriers to condom use. HIV prevention programmes for this population may benefit from tailored risk reduction counselling that attend to the variations of these sexual and social relationship dynamics. PMID:24815724

Partner Support for Family Planning and Modern Contraceptive Use in Luanda, Angola.

PubMed

Prata, Ndola; Bell, Suzanne; Fraser, Ashley; Carvalho, Adelaide; Neves, Isilda; Nieto-Andrade, Benjamin

2017-06-01

Husband's/partner's support for family planning may influence a women's modern contraceptive use. Socio-demographic factors, couple communication about family planning, and fertility preferences are known to play a role in contraceptive use. We conducted logistic regression analysis to investigate the relationship between perceived husband's/partner's approval and husband's/partner's encouragement of modern contraceptive use, adjusting for socio-demographic factors and recent couple communication about family planning. We also examined mediating roles potentially played by perceived contraceptive accessibility and contraceptive self-efficacy (using index created by principal component analysis). Perceived husband's/partner's approval was associated with triple the odds of women's modern contraceptive use and remained significantly associated with 1.6 times the odds, after controlling for contraceptive accessibility and contraceptive self-efficacy. Husband's/partner's encouragement, while initially significantly associated with contraceptive use, became non-significant after adjustments for socio-demographic factors and couple communication. Perceived husband's/partner's approval, separate from a woman's sense of self-efficacy and perceived accessibility of contraceptives, appears strongly and positively associated with current modern contraceptive use. Increased couple communication may help women identify their husband's/partner's approval. Difference between the meaning of approval and encouragement should be explored. Interventions involving information education and communication campaigns geared to men and promoting male involvement in family planning could increase contraceptive prevalence.

Masculinity-femininity predicts sexual orientation in men but not in women.

PubMed

Udry, J Richard; Chantala, Kim

2006-11-01

Using the nationally representative sample of about 15,000 Add Health respondents in Wave III, the hypothesis is tested that masculinity-femininity in adolescence is correlated with sexual orientation 5 years later and 6 years later: that is, that for adolescent males in 1995 and again in 1996, more feminine males have a higher probability of self-identifying as homosexuals in 2001-02. It is predicted that for adolescent females in 1995 and 1996, more masculine females have a higher probability of self-identifying as homosexuals in 2001-02. Masculinity-femininity is measured by the classical method used by Terman & Miles. For both time periods, the hypothesis was strongly confirmed for males: the more feminine males had several times the probability of being attracted to same-sex partners, several times the probability of having same-sex partners, and several times the probability of self-identifying as homosexuals, compared with more masculine males. For females, no relationship was found at either time period between masculinity and sex of preference. The biological mechanism underlying homosexuality may be different for males and females.

Mate choice promotes inbreeding avoidance in the two-spotted spider mite.

PubMed

Tien, N S H; Massourakis, G; Sabelis, M W; Egas, M

2011-06-01

Since inbreeding in Tetranychus urticae can reduce offspring fitness, sexual selection may favour disassortative mate choice with respect to relatedness of the mating partners. We tested whether T. urticae shows this preference for mating with unrelated partners. We chose an experimental set-up with high potential for female choosiness, since females only mate once and are therefore expected to be the choosier gender. An adult virgin female was placed together with two adult males from the same population. One male was unrelated and the other male was related-a brother with whom she had grown up. Significantly more copulations (64%) took place with the unrelated male. Time to mating did not depend on the female-to-male relatedness. The remaining (non-copulating) male tried to interfere with the ongoing mating in the majority of cases, but this interference did not depend on the female-to-male relatedness. These results imply that T. urticae (a) can recognize kin (via genetic and/or environmental similarity) and (b) has the potential to avoid inbreeding through mate choice.

Smooth leader or sharp follower? Playing the mirror game with a robot

PubMed Central

Kashi, Shir; Levy-Tzedek, Shelly

2017-01-01

Background: The increasing number of opportunities for human-robot interactions in various settings, from industry through home use to rehabilitation, creates a need to understand how to best personalize human-robot interactions to fit both the user and the task at hand. In the current experiment, we explored a human-robot collaborative task of joint movement, in the context of an interactive game. Objective: We set out to test people’s preferences when interacting with a robotic arm, playing a leader-follower imitation game (the mirror game). Methods: Twenty two young participants played the mirror game with the robotic arm, where one player (person or robot) followed the movements of the other. Each partner (person and robot) was leading part of the time, and following part of the time. When the robotic arm was leading the joint movement, it performed movements that were either sharp or smooth, which participants were later asked to rate. Results: The greatest preference was given to smooth movements. Half of the participants preferred to lead, and half preferred to follow. Importantly, we found that the movements of the robotic arm primed the subsequent movements performed by the participants. Conclusion: The priming effect by the robot on the movements of the human should be considered when designing interactions with robots. Our results demonstrate individual differences in preferences regarding the role of the human and the joint motion path of the robot and the human when performing the mirror game collaborative task, and highlight the importance of personalized human-robot interactions. PMID:29036853

'. . . if you bring the kit home, you [can] get time and test together with your partner': Pregnant women and male partners' perceptions regarding female partner-delivered HIV self-testing in Uganda - A qualitative study.

PubMed

Matovu, Joseph Kb; Buregyeya, Esther; Arinaitwe, Jim; Wanyenze, Rhoda K

2017-11-01

In 2015, the World Health Organization reported that more than 60 million people were tested for HIV in 122 low- and middle-income countries between 2010 and 2014. Despite this level of progress, over 40% of people living with HIV remain unaware of their HIV status. This calls for innovative approaches to improve uptake of HIV testing services, including use of HIV self-test (HIVST) kits. We conducted a cross-sectional, qualitative study to assess pregnant women and their male partners' perceptions regarding female partner-delivered HIVST kits. This study was conducted at two health facilities in Central Uganda between November and December 2015. Data were collected on pregnant women's willingness to take HIVST kits to their male partners and other household members using eight focus group discussions and 30 in-depth interviews. Data were analyzed following a thematic framework approach. Overall, pregnant women were willing to take HIVST kits to their partners and other household members, with the exception of their cowives. Male partners were willing to use HIVST kits brought by their female partners. Our findings suggest that secondary distribution of HIVST kits through female partners is acceptable and has the potential to improve male partner and household-member HIV testing.

Stated product formulation preferences for HIV pre-exposure prophylaxis among women in the VOICE-D (MTN-003D) study

PubMed Central

Luecke, Ellen H; Cheng, Helen; Woeber, Kubashni; Nakyanzi, Teopista; Mudekunye-Mahaka, Imelda C; van der Straten, Ariane

2016-01-01

Introduction The effectiveness of HIV pre-exposure prophylaxis (PrEP) requires consistent and correct product use, thus a deeper understanding of women's stated product formulation preferences, and the correlates of those preferences, can help guide future research. VOICE-D (MTN-003D), a qualitative ancillary study conducted after the VOICE trial, retrospectively explored participants’ tablet and gel use, as well as their preferences for other potential PrEP product formulations. Methods We conducted an analysis of quantitative and qualitative data from VOICE-D participants. During in-depth interviews, women were presented with pictures and descriptions of eight potential PrEP product formulations, including the oral tablet and vaginal gel tested in VOICE, and asked to discuss which product formulations they would prefer to use and why. Seven of the original product formulations displayed were combined into preferred product formulation categories based on exploratory factor and latent class analyses. We examined demographic and behavioural correlates of these preferred product formulation categories. In-depth interviews with participants were conducted, coded, and analysed for themes related to product preference. Results Of the 68 female participants who completed in-depth interviews (22 South Africa, 24 Zimbabwe, 22 Uganda), median age was 28 (range 21–41), 81% were HIV negative, and 49% were married or living with a partner. Four preferred product formulation categories were identified via exploratory factor analysis: 1) oral tablets; 2) vaginal gel; 3) injectable, implant, or vaginal ring; and 4) vaginal film or suppository. A majority of women (81%) expressed a preference for product formulations included in category 3. Characteristics significantly associated with each preferred product category differed. Attributes described by participants as being important in a preferred product formulation included duration of activity, ease of use, route of administration, clinic- versus self-administration, and degree of familiarity with product. Conclusions While there was interest in a variety of potential PrEP product formulations, a majority of VOICE-D participants preferred long-acting methods. More research is needed to gain insight into end-users’ product formulation preference to inform messaging and market segmentation for different PrEP products and resources to invest in products that target populations are most interested in using. Clinical Trial Number: NCT02358616 PMID:27247202

Stated product formulation preferences for HIV pre-exposure prophylaxis among women in the VOICE-D (MTN-003D) study.

PubMed

Luecke, Ellen H; Cheng, Helen; Woeber, Kubashni; Nakyanzi, Teopista; Mudekunye-Mahaka, Imelda C; van der Straten, Ariane

2016-01-01

The effectiveness of HIV pre-exposure prophylaxis (PrEP) requires consistent and correct product use, thus a deeper understanding of women's stated product formulation preferences, and the correlates of those preferences, can help guide future research. VOICE-D (MTN-003D), a qualitative ancillary study conducted after the VOICE trial, retrospectively explored participants' tablet and gel use, as well as their preferences for other potential PrEP product formulations. We conducted an analysis of quantitative and qualitative data from VOICE-D participants. During in-depth interviews, women were presented with pictures and descriptions of eight potential PrEP product formulations, including the oral tablet and vaginal gel tested in VOICE, and asked to discuss which product formulations they would prefer to use and why. Seven of the original product formulations displayed were combined into preferred product formulation categories based on exploratory factor and latent class analyses. We examined demographic and behavioural correlates of these preferred product formulation categories. In-depth interviews with participants were conducted, coded, and analysed for themes related to product preference. Of the 68 female participants who completed in-depth interviews (22 South Africa, 24 Zimbabwe, 22 Uganda), median age was 28 (range 21-41), 81% were HIV negative, and 49% were married or living with a partner. Four preferred product formulation categories were identified via exploratory factor analysis: 1) oral tablets; 2) vaginal gel; 3) injectable, implant, or vaginal ring; and 4) vaginal film or suppository. A majority of women (81%) expressed a preference for product formulations included in category 3. Characteristics significantly associated with each preferred product category differed. Attributes described by participants as being important in a preferred product formulation included duration of activity, ease of use, route of administration, clinic- versus self-administration, and degree of familiarity with product. While there was interest in a variety of potential PrEP product formulations, a majority of VOICE-D participants preferred long-acting methods. More research is needed to gain insight into end-users' product formulation preference to inform messaging and market segmentation for different PrEP products and resources to invest in products that target populations are most interested in using. NCT02358616.

Mutual mother-infant recognition in mice: The role of pup ultrasonic vocalizations.

PubMed

Mogi, Kazutaka; Takakuda, Ayaka; Tsukamoto, Chihiro; Ooyama, Rumi; Okabe, Shota; Koshida, Nobuyoshi; Nagasawa, Miho; Kikusui, Takefumi

2017-05-15

The importance of the mother-infant bond for the development of offspring health and sociality has been studied not only in primate species but also in rodent species. A social bond is defined as affiliative behaviors toward a specific partner. However, controversy remains concerning whether mouse pups can distinguish between their own mother and an alien mother, and whether mothers can differentiate their own pups from alien pups. In this study, we investigated whether mutual recognition exists between mother and infant in ICR mice. Furthermore, we studied pup ultrasonic vocalizations (USVs), which are emitted by pups when isolated from their mothers, to determine whether they constituted an individual signature used by the mother for pup recognition. We conducted a variety of two-choice tests and selective-retrieving tests. In a two-choice test for mother recognition by the pup, pups between the ages of 17 and 21days preferred their own mothers to alien mothers. In a two-choice test for pup recognition by its mother, the mothers located their own pups faster than alien pups at the beginning of the test, yet displayed similar retrieving activity for both their own and alien pups in the subsequent selective-retrieving test. Furthermore, after recording USVs from pups from subject and alien mothers, then playing them simultaneously, subject mothers displayed a preference for pup USVs emitted by their own pups. Overall, our findings support the existence of mother-infant bonding in mice and suggest that pup USVs contribute to pup recognition by mothers. Copyright © 2016. Published by Elsevier B.V.

The Intrinsically Disordered Regions of the Drosophila melanogaster Hox Protein Ultrabithorax Select Interacting Proteins Based on Partner Topology

PubMed Central

Hsiao, Hao-Ching; Gonzalez, Kim L.; Catanese, Daniel J.; Jordy, Kristopher E.; Matthews, Kathleen S.; Bondos, Sarah E.

2014-01-01

Interactions between structured proteins require a complementary topology and surface chemistry to form sufficient contacts for stable binding. However, approximately one third of protein interactions are estimated to involve intrinsically disordered regions of proteins. The dynamic nature of disordered regions before and, in some cases, after binding calls into question the role of partner topology in forming protein interactions. To understand how intrinsically disordered proteins identify the correct interacting partner proteins, we evaluated interactions formed by the Drosophila melanogaster Hox transcription factor Ultrabithorax (Ubx), which contains both structured and disordered regions. Ubx binding proteins are enriched in specific folds: 23 of its 39 partners include one of 7 folds, out of the 1195 folds recognized by SCOP. For the proteins harboring the two most populated folds, DNA-RNA binding 3-helical bundles and α-α superhelices, the regions of the partner proteins that exhibit these preferred folds are sufficient for Ubx binding. Three disorder-containing regions in Ubx are required to bind these partners. These regions are either alternatively spliced or multiply phosphorylated, providing a mechanism for cellular processes to regulate Ubx-partner interactions. Indeed, partner topology correlates with the ability of individual partner proteins to bind Ubx spliceoforms. Partners bind different disordered regions within Ubx to varying extents, creating the potential for competition between partners and cooperative binding by partners. The ability of partners to bind regions of Ubx that activate transcription and regulate DNA binding provides a mechanism for partners to modulate transcription regulation by Ubx, and suggests that one role of disorder in Ubx is to coordinate multiple molecular functions in response to tissue-specific cues. PMID:25286318

Heterozygosity-based assortative mating in blue tits (Cyanistes caeruleus): implications for the evolution of mate choice

PubMed Central

García-Navas, Vicente; Ortego, Joaquín; Sanz, Juan José

2009-01-01

The general hypothesis of mate choice based on non-additive genetic traits suggests that individuals would gain important benefits by choosing genetically dissimilar mates (compatible mate hypothesis) and/or more heterozygous mates (heterozygous mate hypothesis). In this study, we test these hypotheses in a socially monogamous bird, the blue tit (Cyanistes caeruleus). We found no evidence for a relatedness-based mating pattern, but heterozygosity was positively correlated between social mates, suggesting that blue tits may base their mating preferences on partner's heterozygosity. We found evidence that the observed heterozygosity-based assortative mating could be maintained by both direct and indirect benefits. Heterozygosity reflected individual quality in both sexes: egg production and quality increased with female heterozygosity while more heterozygous males showed higher feeding rates during the brood-rearing period. Further, estimated offspring heterozygosity correlated with both paternal and maternal heterozygosity, suggesting that mating with heterozygous individuals can increase offspring genetic quality. Finally, plumage crown coloration was associated with male heterozygosity, and this could explain unanimous mate preferences for highly heterozygous and more ornamented individuals. Overall, this study suggests that non-additive genetic traits may play an important role in the evolution of mating preferences and offers empirical support to the resolution of the lek paradox from the perspective of the heterozygous mate hypothesis. PMID:19474042

Resource availability hypothesis: Perceived financial and caloric status affect individuals' height preferences for potential partners.

PubMed

Sun, Qingzhou; Lou, Liandi; Lu, Jingyi; Wang, Xiaoming; Zhong, Jun; Tan, Xuyun; Li, Yanxia; Liu, Yongfang

2016-10-01

Height is an important concern in human mate choices. Prior research indicates that people who live in areas with abundant resources differ from those who live in areas with scarce resources regarding height preferences. Based on a health-maximizing principle, we propose a resource availability account for such differences. Compared with women's height preferences, men's height preferences are hypothesized to be more dependent on either financial or caloric resource availability. Specifically, taller females would be more preferred by males who are poor in resources than those who are rich in resources. Results from three studies supported these hypotheses. In Study 1, men from remote areas of China who had lower family income preferred taller women more than those from eastern China who had higher family income. In Study 2, men who were financially dissatisfied preferred taller women more than those who were financially satisfied. In Study 3, men with low caloric status preferred taller women more than men with high caloric status. In addition, women's height preferences in Studies 1, 2 and 3 were less determined by resource availability. These findings suggest that height preferences are changeable, depending on financial or caloric status. © 2015 International Union of Psychological Science.

Preferences for facial and vocal masculinity in homosexual men: the role of relationship status, sexual restrictiveness, and self-perceived masculinity.

PubMed

Valentová, Jaroslava; Roberts, S Craig; Havlícek, Jan

2013-01-01

Studies on mate preferences usually examine heterosexual attraction; comparatively little is known about preferences of individuals whose sexuality is aimed at the same sex. We examined preferences of two groups of androphilic individuals--homosexual men and heterosexual women--for male facial and vocal level of masculinity. Facial images of 58 men and vocal recordings of 30 men were rated by 51 heterosexual women and 33 homosexual men for their attractiveness and masculinity--femininity. In both groups of raters, ratings of vocal attractiveness and masculinity were positively correlated, but there was no overall preference for facial masculinity. After splitting raters according to their relationship status, sexual restrictiveness, and self-rated masculinity, we found significant preferences for masculine voices only in single homosexual men and coupled heterosexual women, while a preference for feminine male faces was found in coupled homosexual men. Furthermore, homosexual men describing themselves as relatively masculine significantly preferred masculine voices but also more feminine male faces. Our results demonstrate that conditional mate preferences are not restricted to heterosexual interactions, and homosexual men prefer a mixture of masculine and feminine traits in their potential male partners.

Are attractive men's faces masculine or feminine? The importance of controlling confounds in face stimuli.

PubMed

DeBruine, Lisa M; Jones, Benedict C; Smith, Finlay G; Little, Anthony C

2010-06-01

Women's preferences for male masculinity are highly variable. Although many researchers explain this variability as reflecting systematic individual differences in how women resolve the tradeoff between the costs and benefits of choosing a masculine partner, others suggest that methodological differences between studies are responsible. A recent study found general femininity preferences for judgments of faces that were manipulated in sexual dimorphism of shape but general masculinity preferences for judgments of faces that were based on perceived masculinity. Using the original stimuli, we replicated these previous results but found equivalent general femininity preferences for both types of faces when nonface confounds in the stimuli (e.g. hairstyle) were eliminated through masking. We conclude that care must be taken to control potential confounds in stimuli and that the influence of nonface cues on preferences for facial masculinity deserves further study.

A novel model for neuroendocrine toxicology: neurobehavioral effects of BPA exposure in a prosocial species, the prairie vole (Microtus ochrogaster).

PubMed

Sullivan, Alana W; Beach, Elsworth C; Stetzik, Lucas A; Perry, Amy; D'Addezio, Alyssa S; Cushing, Bruce S; Patisaul, Heather B

2014-10-01

Impacts on brain and behavior have been reported in laboratory rodents after developmental exposure to bisphenol A (BPA), raising concerns about possible human effects. Epidemiological data suggest links between prenatal BPA exposure and altered affective behaviors in children, but potential mechanisms are unclear. Disruption of mesolimbic oxytocin (OT)/vasopressin (AVP) pathways have been proposed, but supporting evidence is minimal. To address these data gaps, we employed a novel animal model for neuroendocrine toxicology: the prairie vole (Microtus ochrogaster), which are more prosocial than lab rats or mice. Male and female prairie vole pups were orally exposed to 5-μg/kg body weight (bw)/d, 50-μg/kg bw/d, or 50-mg/kg bw/d BPA or vehicle over postnatal days 8-14. Subjects were tested as juveniles in open field and novel social tests and for partner preference as adults. Brains were then collected and assessed for immunoreactive (ir) tyrosine hydroxylase (TH) (a dopamine marker) neurons in the principal bed nucleus of the stria terminalis (pBNST) and TH-ir, OT-ir, and AVP-ir neurons in the paraventricular nucleus of the hypothalamus (PVN). Female open field activity indicated hyperactivity at the lowest dose and anxiety at the highest dose. Effects on social interactions were also observed, and partner preference formation was mildly inhibited at all dose levels. BPA masculinized principal bed nucleus of the stria terminalis TH-ir neuron numbers in females. Additionally, 50-mg/kg bw BPA-exposed females had more AVP-ir neurons in the anterior PVN and fewer OT-ir neurons in the posterior PVN. At the 2 lowest doses, BPA eliminated sex differences in PVN TH-ir neuron numbers and reversed this sex difference at the highest dose. Minimal behavioral effects were observed in BPA-exposed males. These data support the hypothesis that BPA alters affective behaviors, potentially via disruption of OT/AVP pathways.

HIV Testing and Awareness of Partner's HIV Status Among Chinese Men Who Have Sex with Men in Main Partnerships.

PubMed

Wei, Chongyi; Yan, Hongjing; Raymond, H Fisher; Shi, Ling-En; Li, Jianjun; Yang, Haitao; McFarland, Willi

2016-04-01

Many men who have sex with men (MSM) do not use condoms with their main partners, especially if both parties are of the same HIV status. However, significant proportions of MSM have never tested or recently tested and are unaware of their main partners' HIV status. A cross-sectional survey was conducted among 524 MSM in Jiangsu, China in 2013-2014. Time-location sampling and online convenience sampling were used to recruit participants. We compared awareness of HIV status and recent HIV testing between participants who had main partners versus those who did not, and identified factors associated with recent HIV testing among men in main partnerships. Participants in main partnerships were significantly more likely to report recent HIV testing and being HIV-negative instead of HIV-unknown compared to participants in casual partnerships only. Overall, 74.5 % of participants were aware of their main partners' HIV status. Among participants in main partnerships, those who had 2-5 male anal sex partners in the past 6 months and those who reported that their partners were HIV-negative had 2.36 (95 % CI 1.12, 4.97) and 4.20 (95 % CI 2.03, 8.70) fold greater odds of being tested in the past year compared to those who had main partners only and those whose partners were HIV-positive/unknown, respectively. Chinese MSM in main partnerships might be practicing serosorting and may be at lower risk for HIV infection due to increased awareness of main partners' HIV status and higher uptake of recent testing.

Biochemistry of the tale transcription factors PREP, MEIS, and PBX in vertebrates.

PubMed

Longobardi, E; Penkov, D; Mateos, D; De Florian, G; Torres, M; Blasi, Francesco

2014-01-01

TALE (three amino acids loop extension) homeodomain transcription factors are required in various steps of embryo development, in many adult physiological functions, and are involved in important pathologies. This review focuses on the PREP, MEIS, and PBX sub-families of TALE factors and aims at giving information on their biochemical properties, i.e., structure, interactors, and interaction surfaces. Members of the three sets of protein form dimers in which the common partner is PBX but they can also directly interact with other proteins forming higher-order complexes, in particular HOX. Finally, recent advances in determining the genome-wide DNA-binding sites of PREP1, MEIS1, and PBX1, and their partial correspondence with the binding sites of some HOX proteins, are reviewed. These studies have generated a few general rules that can be applied to all members of the three gene families. PREP and MEIS recognize slightly different consensus sequences: PREP prefers to bind to promoters and to have PBX as a DNA-binding partner; MEIS prefers HOX as partner, and both PREP and MEIS drive PBX to their own binding sites. This outlines the clear individuality of the PREP and MEIS proteins, the former mostly devoted to basic cellular functions, the latter more to developmental functions. Copyright © 2013 Wiley Periodicals, Inc.

Devaluation of Safe Sex by Delay or Uncertainty: A Within-Subjects Study of Mechanisms Underlying Sexual Risk Behavior.

PubMed

Wongsomboon, Val; Robles, Elias

2017-10-01

The value of safe sex may be discounted based on contextual factors associated with an opportunity for sex. College students in a within-subjects study selected hypothetical sexual partners from a set of pictures and classified them based on attractiveness and estimated chance of having an sexually transmitted infection (STI). In the Sexual Delay Discounting (SDD) task, participants rated their likelihood (0-100 %) of waiting for some period of time (e.g., 3 h) to have protected sex with their selected partners, when they could have immediate sex without protection. In the Sexual Probability Discounting (SPD) task, participants rated their likelihood of having protected sex if the opportunity was uncertain (e.g., 50 %), when they could have unprotected sex for sure (100 %). All participants included in the final analyses were aware of and had a positive attitude towards protection against STIs as they were likely to have immediate (or certain) protected sex. Results from 432 delay data in the SDD task and 488 probability data in the SPD task showed that participants' preference for safe sex systematically decreased as the delay to and odds against having safe sex increased. However, this preference was altered by the participants' perception of their partner's attractiveness and STI risk.

Sex differences in adults' relative visual interest in female and male faces, toys, and play styles.

PubMed

Alexander, Gerianne M; Charles, Nora

2009-06-01

An individual's reproductive potential appears to influence response to attractive faces of the opposite sex. Otherwise, relatively little is known about the characteristics of the adult observer that may influence his or her affective evaluation of male and female faces. An untested hypothesis (based on the proposed role of attractive faces in mate selection) is that most women would show greater interest in male faces whereas most men would show greater interest in female faces. Further, evidence from individuals with preferences for same-sex sexual partners suggests that response to attractive male and female faces may be influenced by gender-linked play preferences. To test these hypotheses, visual attention directed to sex-linked stimuli (faces, toys, play styles) was measured in 39 men and 44 women using eye tracking technology. Consistent with our predictions, men directed greater visual attention to all male-typical stimuli and visual attention to male and female faces was associated with visual attention to gender conforming or nonconforming stimuli in a manner consistent with previous research on sexual orientation. In contrast, women showed a visual preference for female-typical toys, but no visual preference for male faces or female-typical play styles. These findings indicate that sex differences in visual processing extend beyond stimuli associated with adult sexual behavior. We speculate that sex differences in visual processing are a component of the expression of gender phenotypes across the lifespan that may reflect sex differences in the motivational properties of gender-linked stimuli.

Preferential interactions promote blind cooperation and informed defection.

PubMed

Pérez-Escudero, Alfonso; Friedman, Jonathan; Gore, Jeff

2016-12-06

It is common sense that costs and benefits should be carefully weighed before deciding on a course of action. However, we often disapprove of people who do so, even when their actual decision benefits us. For example, we prefer people who directly agree to do us a favor over those who agree only after securing enough information to ensure that the favor will not be too costly. Why should we care about how people make their decisions, rather than just focus on the decisions themselves? Current models show that punishment of information gathering can be beneficial because it forces blind decisions, which under some circumstances enhances cooperation. Here we show that aversion to information gathering can be beneficial even in the absence of punishment, due to a different mechanism: preferential interactions with reliable partners. In a diverse population where different people have different-and unknown-preferences, those who seek additional information before agreeing to cooperate reveal that their preferences are close to the point where they would choose not to cooperate. Blind cooperators are therefore more likely to keep cooperating even if conditions change, and aversion to information gathering helps to interact preferentially with them. Conversely, blind defectors are more likely to keep defecting in the future, leading to a preference for informed defectors over blind ones. Both mechanisms-punishment to force blind decisions and preferential interactions-give qualitatively different predictions, which may enable experimental tests to disentangle them in real-world situations.

Partner's influences and other correlates of prenatal alcohol use.

PubMed

van der Wulp, Nickie Y; Hoving, Ciska; de Vries, Hein

2015-04-01

To investigate the influence of partners on alcohol consumption in pregnant women within the context of other factors. A Dutch nationwide online cross-sectional study among 158 pregnant women and their partners was conducted. To identify correlates of prenatal alcohol use, including perceived and reported partner norm (i.e. partner's belief regarding acceptability of prenatal alcohol use), partner modeling (i.e. partner's alcohol use during the woman's pregnancy) and partner support (i.e. partner's help in abstaining from alcohol during pregnancy), independent sample T-tests and Chi square tests were conducted. Correlation analyses tested the relationship between perceived and reported partner influence. Multivariate logistic hierarchical regression analyses tested the independent impact of partner's perceived and reported influence next to other correlates from the I-Change Model. Pregnant women who consumed alcohol perceived a weaker partner norm (p < 0.001) and less partner modeling (p < 0.05), with the partner reporting a weaker norm (p < 0.001), more drinking days per week (p < 0.05) and weaker support (p < 0.05). Perceived and reported partner norm, modeling and support were positively related (respectively p < 0.01, p < 0.01 and p < 0.05). The multivariate analyses demonstrated that pregnant women with a higher education who perceived lower severity of harm due to prenatal alcohol use and a weaker partner norm were more likely to use alcohol (R(2) = 0.42). This study demonstrated that perceived partner norm was the most critical of the constructs of perceived and reported partner influences in explaining prenatal alcohol use.

Bisexuality, Sexual Risk Taking, and HIV Prevalence Among Men Who Have Sex With Men Accessing Voluntary Counseling and Testing Services in Mumbai, India

PubMed Central

Kumta, Sameer; Lurie, Mark; Weitzen, Sherry; Jerajani, Hemangi; Gogate, Alka; Row-kavi, Ashok; Anand, Vivek; Makadon, Harvey; Mayer, Kenneth H.

2010-01-01

Objectives To describe sociodemographics, sexual risk behavior, and estimate HIV and sexually transmitted infection (STI) prevalence among men who have sex with men (MSM) in Mumbai, India. Methods Eight hundred thirty-one MSM attending voluntary counseling and testing (VCT) services at the Humsafar Trust, answered a behavioral questionnaire and consented for Venereal Disease Research Laboratory and HIV testing from January 2003 through December 2004. Multivariate logistic regression was performed for sociodemographics, sexual risk behavior, and STIs with HIV result as an outcome. Results HIV prevalence among MSM was 12.5%. MSM who were illiterate [adjusted odds ratio (AOR) 2.28; 95% confidence interval (CI): 1.08 to 4.84], married (AOR 2.70; 95% CI: 1,56 to 4.76), preferred male partners (AOR 4.68; 95% CI: 1.90 to 11.51), had partners of both genders (AOR 2.73; 95% CI: 1.03 to 7.23), presented with an STI (AOR 3.31; 95% CI: 1.96 to 5.61); or presented with a reactive venereal disease research laboratory test (AOR 4.92; 95% CI: 2.55 to 9.53) at their VCT visit were more likely to be HIV infected. Conclusions MSM accessing VCT services in Mumbai have a high risk of STI and HIV acquisition. Culturally appropriate interventions that focus on sexual risk behavior and promote condom use among MSM, particularly the bridge population of bisexual men, are needed to slow the urban Indian AIDS epidemic. PMID:19934765

The Psychological Impact of Prenatal Diagnosis and Disclosure of Susceptibility Loci: First Impressions of Parents' Experiences.

PubMed

van der Steen, S L; Riedijk, S R; Verhagen-Visser, J; Govaerts, L C P; Srebniak, M I; Van Opstal, D; Joosten, M; Knapen, M F C M; Tibben, A; Diderich, K E M; Galjaard, R J H

2016-12-01

Genomic microarray may detect susceptibility loci (SL) for neurodevelopmental disorders such as autism and epilepsy, with a yet unquantifiable risk for the fetus. The prenatal disclosure of susceptibility loci is a topic of much debate. Many health care professionals fear that reporting susceptibility loci may put a psychological burden on pregnant couples. It is our policy to disclose prenatal susceptibility loci as we recognize them as actionable for prospective parents. The aim of this report was to evaluate the psychological impact of disclosing a prenatal diagnosis of susceptibility loci. The psychological impact of disclosing susceptibility loci was evaluated in the first patients who received such results. Eight out of 15 women who had a susceptibility locus disclosed and four of their partners consented to share their experiences through a telephonic evaluation (n = 12). Follow-up time ranged from 3 to 15 months after their prenatal test result. The reporting of susceptibility loci was initially 'shocking' for five parents while the other seven felt 'worried'. Ten out of 12 participants indicated they would like to be informed about the susceptibility locus again, two were unsure. Most had no enduring worries. Participants unanimously indicated that pregnant couples should have an individualized pre-test choice about susceptibility loci (non)disclosure. We observed no negative psychological impact with the prenatal diagnosis and disclosure of SL on participants. A key factor in mitigating parental anxiety with SL disclosure appears to be post-test genetic counseling. Our report confirms that pregnant women and their partners prefer an individualized choice regarding the scope of prenatal testing.

Epidemic spreading on preferred degree adaptive networks.

PubMed

Jolad, Shivakumar; Liu, Wenjia; Schmittmann, B; Zia, R K P

2012-01-01

We study the standard SIS model of epidemic spreading on networks where individuals have a fluctuating number of connections around a preferred degree κ. Using very simple rules for forming such preferred degree networks, we find some unusual statistical properties not found in familiar Erdös-Rényi or scale free networks. By letting κ depend on the fraction of infected individuals, we model the behavioral changes in response to how the extent of the epidemic is perceived. In our models, the behavioral adaptations can be either 'blind' or 'selective'--depending on whether a node adapts by cutting or adding links to randomly chosen partners or selectively, based on the state of the partner. For a frozen preferred network, we find that the infection threshold follows the heterogeneous mean field result λ(c)/μ = <κ>/<κ2> and the phase diagram matches the predictions of the annealed adjacency matrix (AAM) approach. With 'blind' adaptations, although the epidemic threshold remains unchanged, the infection level is substantially affected, depending on the details of the adaptation. The 'selective' adaptive SIS models are most interesting. Both the threshold and the level of infection changes, controlled not only by how the adaptations are implemented but also how often the nodes cut/add links (compared to the time scales of the epidemic spreading). A simple mean field theory is presented for the selective adaptations which capture the qualitative and some of the quantitative features of the infection phase diagram.

Premarital sexual experience and preferred sources of reproductive health information among young men in Kumbotso, northern Nigeria.

PubMed

Iliyasu, Z; Zubairu, I; Abubakar, I S; Isa, S A; Galadanci, H S; Hadiza, S G; Babam Maryam, A; Babam-Maryam, A; Aliyu, M H; Muktar, H A

2012-01-01

Despite well known risks associated with unprotected premarital sex, this phenomenon has not been well explored among young men in rural northern Nigeria. We studied the predictors of premarital sex and preferred sources of sexual and reproductive health information among young unmarried men in Kumbotso, northern Nigeria. A cross section of 400 young men were interviewed using structured questionnaires with mostly closed ended questions. Of the 385 respondents, 39 (10.1%) were sexually experienced. Less than half of respondents (48.7%) used a condom at sexual debut, and an equal proportion reported having multiple sex partners. Only 41.0% of sexually experienced respondents reported subsequent consistent condom use Age (adjusted odds ratio [AOR] = 4.12; 95% confidence interval (CI): 2.24-5.20 and educational attainment [AOR = 3.57; 95% CI (1.49-9.10)] were significant predictors of sexual experience. The current versus preferred sources of sexual and reproductive health information included friends (51.3% vs. 93.3%), Islamic school teachers (41.0% vs. 72.7%) and school teachers (8.8% vs. 15.1%). Although the prevalence of premarital sex among young men in this community in northern Nigeria as low, those that did engage in such activity were likely to not use condoms and to have multiple partners. Preferred and trusted sources of information included peers and religious leaders. The findings in this study could be used to develop innovative strategies for reaching young men with accurate sexual and reproductive health information.

Confirming preferences or collecting data? Information search strategies and romantic partner selection.

PubMed

Hennessy, Michael H; Fishbein, Marty; Curtis, Brenda; Barrett, Daniel

2008-03-01

This article investigates two kinds of information search strategies in the context of selecting romantic partners. Confirmatory searching occurs when people ask for more information about a romantic partner in order to validate or confirm their assessment. Balanced searches are characterized by a search for risk information for partners rated as attractive and for attractiveness information about partners rated as risky in order to attain a more complete evaluation. A factorial survey computer program randomly constructed five types of partner descriptions and college-age respondents evaluated nine descriptions in terms of both health risk and romantic attractiveness outcomes. The results show little evidence of balanced search strategies: for all vignette types the respondents searched for attractiveness information. Regression analysis of the search outcomes showed no difference between males and females in the desire for attractiveness or risk information, the amount of additional information desired, or the proportion of descriptions for which more information was desired. However, an attractive physical appearance did increase the amount of additional information desired and the proportion of vignettes for which more information was desired. The results were generally inconsistent with a balanced search hypothesis; a better characterization of the respondents' strategy might be "confirmatory bias."

How online counselling can support partners of individuals with problem alcohol or other drug use.

PubMed

Wilson, Samara R; Rodda, Simone; Lubman, Dan I; Manning, Victoria; Yap, Marie B H

2017-07-01

Problematic alcohol and other drug (AOD) use impacts partners heavily, with an increased risk of experiencing domestic violence, financial stressors, health problems and relationship challenges. However, partners often do not seek help or support due to a range of barriers (e.g., shame, stigma, practical constraints). Online counselling may facilitate help-seeking by overcoming many of these barriers, however research is needed to explore what motivates partners to contact online counselling services, their experiences and needs, and how partners can be best supported online. One hundred transcripts of partners of individuals with problem AOD use were sampled from a 24-hour national AOD synchronous online chat counselling service. Descriptive content analysis was used to investigate themes related to help-seeking. Three broad themes, with seven sub-themes, were identified: (i) the reason for accessing online counselling (seeking advice, wanting to talk), (ii) discussing help-seeking and coping processes (past/present help-seeking or coping strategies, barriers and facilitators to seeking help and change), and (iii) planning for future assistance (future planning, treatment preferences). Partners wanted to talk about their concerns with a non-judgemental professional. However, the majority of help-seekers wanted advice and assistance in problem-solving, coping and the process of seeking further help. Future studies need to examine the impact of online help-seeking by partners. Copyright © 2017 Elsevier Inc. All rights reserved.

Hormonal contraceptives suppress oxytocin-induced brain reward responses to the partner's face.

PubMed

Scheele, Dirk; Plota, Jessica; Stoffel-Wagner, Birgit; Maier, Wolfgang; Hurlemann, René

2016-05-01

The hypothalamic peptide oxytocin (OXT) has been identified as a key modulator of pair-bonding in men, but its effects in women are still elusive. Moreover, there is substantial evidence that hormonal contraception (HC) influences partner preferences and sexual satisfaction, which constitute core domains of OXT function. We thus hypothesized that OXT effects on partner-related behavioral and neural responses could be significantly altered in women using HC. In this functional magnetic resonance imaging study involving 40 pair-bonded women, 21 of whom were using HC, we investigated whether a 24-IU nasal dose of OXT would modulate brain reward responses evoked by the romantic partner's face relative to the faces of familiar and unfamiliar people. Treatment with OXT increased the perceived attractiveness of the partner relative to other men, which was paralleled by elevated responses in reward-associated regions, including the nucleus accumbens. These effects of OXT were absent in women using HC. Our results confirm and extend previous findings in men that OXT interacts with the brain reward system to reinforce partner value representations, indicating a common OXT-dependent mechanism underlying partner attraction in both sexes. This mechanism may be disturbed in women using HC, suggesting that gonadal steroids could alter partner-specific OXT effects. © The Author (2015). Published by Oxford University Press. For Permissions, please email: journals.permissions@oup.com.

A spatial genetic structure and effects of relatedness on mate choice in a wild bird population.

PubMed

Foerster, K; Valcu, M; Johnsen, A; Kempenaers, B

2006-12-01

Inbreeding depression, as commonly found in natural populations, should favour the evolution of inbreeding avoidance mechanisms. If natal dispersal, the first and probably most effective mechanism, does not lead to a complete separation of males and females from a common origin, a small-scale genetic population structure may result and other mechanisms to avoid inbreeding may exist. We studied the genetic population structure and individual mating patterns in blue tits (Parus caeruleus). The population showed a local genetic structure in two out of four years: genetic relatedness between individuals (estimated from microsatellite markers) decreased with distance. This pattern was mainly caused by immigrants to the study area; these, if paired with fellow immigrants, were more related than expected by chance. Since blue tits did not avoid inbreeding with their social partner, we examined if individuals preferred less related partners at later stages of the mate choice process. We found no evidence that females or males avoided inbreeding through extra-pair copulations or through mate desertion and postbreeding dispersal. Although the small-scale genetic population structure suggests that blue tits could use a simple rule of thumb to select less related mates, females did not generally prefer more distantly breeding extra-pair partners. However, the proportion of young fathered by an extra-pair male in mixed paternity broods depended on the genetic relatedness with the female. This suggests that there is a fertilization bias towards less related copulation partners and that blue tits are able to reduce the costs of inbreeding through a postcopulatory process.

Assortative Mating and the Reversal of Gender Inequality in Education in Europe: An Agent-Based Model

PubMed Central

Grow, André; Van Bavel, Jan

2015-01-01

While men have always received more education than women in the past, this gender imbalance in education has turned around in large parts of the world. In many countries, women now excel men in terms of participation and success in higher education. This implies that, for the first time in history, there are more highly educated women than men reaching the reproductive ages and looking for a partner. We develop an agent-based computational model that explicates the mechanisms that may have linked the reversal of gender inequality in education with observed changes in educational assortative mating. Our model builds on the notion that individuals search for spouses in a marriage market and evaluate potential candidates based on preferences. Based on insights from earlier research, we assume that men and women prefer partners with similar educational attainment and high earnings prospects, that women tend to prefer men who are somewhat older than themselves, and that men prefer women who are in their mid-twenties. We also incorporate the insight that the educational system structures meeting opportunities on the marriage market. We assess the explanatory power of our model with systematic computational experiments, in which we simulate marriage market dynamics in 12 European countries among individuals born between 1921 and 2012. In these experiments, we make use of realistic agent populations in terms of educational attainment and earnings prospects and validate model outcomes with data from the European Social Survey. We demonstrate that the observed changes in educational assortative mating can be explained without any change in male or female preferences. We argue that our model provides a useful computational laboratory to explore and quantify the implications of scenarios for the future. PMID:26039151

Assortative mating and the reversal of gender inequality in education in europe: an agent-based model.

PubMed

Grow, André; Van Bavel, Jan

2015-01-01

While men have always received more education than women in the past, this gender imbalance in education has turned around in large parts of the world. In many countries, women now excel men in terms of participation and success in higher education. This implies that, for the first time in history, there are more highly educated women than men reaching the reproductive ages and looking for a partner. We develop an agent-based computational model that explicates the mechanisms that may have linked the reversal of gender inequality in education with observed changes in educational assortative mating. Our model builds on the notion that individuals search for spouses in a marriage market and evaluate potential candidates based on preferences. Based on insights from earlier research, we assume that men and women prefer partners with similar educational attainment and high earnings prospects, that women tend to prefer men who are somewhat older than themselves, and that men prefer women who are in their mid-twenties. We also incorporate the insight that the educational system structures meeting opportunities on the marriage market. We assess the explanatory power of our model with systematic computational experiments, in which we simulate marriage market dynamics in 12 European countries among individuals born between 1921 and 2012. In these experiments, we make use of realistic agent populations in terms of educational attainment and earnings prospects and validate model outcomes with data from the European Social Survey. We demonstrate that the observed changes in educational assortative mating can be explained without any change in male or female preferences. We argue that our model provides a useful computational laboratory to explore and quantify the implications of scenarios for the future.

Partner notification in cooperation with community-based organizations among HIV-positive men who have sex with men in two Chinese cities.

PubMed

Fu, Xiaojing; Qi, Jinlei; Hu, Yifei; Pan, Xiaohong; Li, Youfang; Liu, Hui; Wu, Di; Yin, Wenyuan; Zhao, Yuan; Shan, Duo; Zhang, Nanci Nanyi; Zhang, Dapeng; Sun, Jiangping

2016-09-01

The epidemic of HIV/AIDS among Chinese men who have sex with men (MSM) is rapidly escalating. We implemented partner notification among HIV-infected MSM, cooperating with MSM-serving community-based organizations (CBOs) in two Chinese cities from June 2014 to May 2015. CBOs participated in identifying new HIV-positive MSM utilizing rapid HIV tests and partner notification among index cases. 253 index cases were recruited and 275 sexual partners were notified and tested with 10.5% screened positive. Compared with previously identified index cases, the proportion of contactable sexual partners of newly identified index cases was higher, but the testing rate was lower (p < 0.001). Overall, 83.7% of sexual partners were casual with a contactable rate of 24.9% and a HIV testing rate of 71.1%. Having no contact information for sexual partners and fear of disclosure of HIV status are the main reasons for declining partner notification. It is feasible and effective to perform partner notification in cooperation with CBOs serving Chinese MSM. © The Author(s) 2016.

Help to perpetuate traditional gender roles: Benevolent sexism increases engagement in dependency-oriented cross-gender helping.

PubMed

Shnabel, Nurit; Bar-Anan, Yoav; Kende, Anna; Bareket, Orly; Lazar, Yael

2016-01-01

Based on theorizing that helping relations may serve as a subtle mechanism to reinforce intergroup inequality, the present research (N = 1,315) examined the relation between benevolent sexism (i.e., a chivalrous yet subtly oppressive view of women) and helping. In cross-gender interactions, the endorsement of (Studies 1, 3, and 4) or exposure to (Study 2) benevolent sexism predicted (a) men's preference to provide women with dependency-oriented help (i.e., direct assistance) rather than tools for autonomous coping, and (b) women's preference to seek dependency-oriented help rather than tools for autonomous coping. Benevolent sexism did not predict men's and women's engagement in dependency-oriented helping relations in same-gender interactions. Studies 1 and 2 examined behavioral intentions in response to a series of hypothetical scenarios; Studies 3 and 4 examined actual behavior in tests of mathematical and logical ability, and pointed to assumed partner's expectations as a potential mediator. The converging evidence supports the hypothesis that benevolent sexism encourages engagement in cross-gender helping relations that perpetuate traditional gender roles. (c) 2016 APA, all rights reserved).

Dynamic corticostriatal activity biases social bonding in monogamous female prairie voles

PubMed Central

Amadei, Elizabeth A.; Johnson, Zachary V.; Kwon, Yong Jun; Shpiner, Aaron C.; Saravanan, Varun; Mays, Wittney D.; Ryan, Steven J.; Walum, Hasse; Rainnie, Donald G.; Young, Larry J.; Liu, Robert C.

2017-01-01

Summary paragraph Adult pair bonding involves dramatic changes in the perception and valuation of another individual1. One key change is that partners come to reliably activate the brain's reward system2-6, though the precise neural mechanisms by which partners become rewarding during sociosexual interactions leading to a bond remain unclear. Using a prairie vole model of social bonding7, we show how a functional circuit from medial prefrontal cortex (mPFC) to nucleus accumbens (NAcc) is dynamically modulated to enhance females' affiliative behavior towards a partner. Individual variation in the strength of this functional connectivity, particularly after the first mating encounter, predicts how quickly animals begin affiliative huddling with their partner. Rhythmically activating this circuit in a social context without mating biases later preference towards a partner, indicating that this circuit's activity is not just correlated with how quickly animals become affiliative but causally accelerates it. These results provide the first dynamic view of corticostriatal activity during bond formation, revealing how social interactions can recruit brain reward systems to drive changes in affiliative behavior. PMID:28562592

Interest in healthy diet and physical activity interventions peripartum among female partners of active duty military.

PubMed

Ostbye, Truls; McBride, Colleen; Demark-Wahnefried, Wendy; Bastian, Lori; Morey, Miriam; Krause, Katrina M; Brouwer, Rebecca; Turner, Barbara

2003-04-01

Overweight and obesity among soldiers and their dependents have increased over the last decade, mirroring rates in the general population. In general, few programs that result in sustained weight loss have been evaluated, although effective interventions could have clear health and cost benefits for the military. For women, the postpartum period represents a "teachable moment" to promote healthy diet and exercise behaviors related to weight loss, but the attitudes and preferences for weight-loss interventions in this population are unknown. With a view to developing a weight-loss intervention tailored to this population, we surveyed 161 peripartum women at a military base to assess their interests and preferences. Eighty-six percent were dependents. Despite their youth, more than one-third reported entering pregnancy overweight or obese. Interest was high for interventions that promote physical activity and facilitate social interaction. Based on these results, a postpartum exercise intervention is being designed for female partners of active duty soldiers.

Cleaner wrasse prefer client mucus: support for partner control mechanisms in cleaning interactions.

PubMed

Grutter, Alexandra S; Bshary, Redouan

2003-11-07

Recent studies on cleaning behaviour suggest that there are conflicts between cleaners and their clients over what cleaners eat. The diet of cleaners usually contains ectoparasites and some client tissue. It is unclear, however, whether cleaners prefer client tissue over ectoparasites or whether they include client tissue in their diet only when searching for parasites alone is not profitable. To distinguish between these two hypotheses, we trained cleaner fish Labroides dimidiatus to feed from plates and offered them client mucus from the parrotfish Chlorurus sordidus, parasitic monogenean flatworms, parasitic gnathiid isopods and boiled flour glue as a control. We found that cleaners ate more mucus and monogeneans than gnathiids, with gnathiids eaten slightly more often than the control substance. Because gnathiids are the most abundant ectoparasites, our results suggest a potential for conflict between cleaners and clients over what the cleaner should eat, and support studies emphasizing the importance of partner control in keeping cleaning interactions mutualistic.

Role of sexual self-disclosure in the sexual satisfaction of long-term heterosexual couples.

PubMed

MacNeil, Sheila; Byers, E Sandra

2009-01-01

This study examined two proposed pathways between sexual self-disclosure (SSD) and sexual satisfaction in a sample of 104 heterosexual couples in long-term relationships. According to the proposed instrumental pathway, disclosure of sexual preferences increases a partner's understanding of those preferences resulting in a sexual script that is more rewarding and less costly. A more favorable balance of sexual rewards to sexual costs, in turn, results in greater sexual satisfaction for the disclosing individual. According to the proposed expressive pathway, mutual self-disclosure contributes to relationship satisfaction, which in turn leads to greater sexual satisfaction. Support was found for the instrumental pathway for both men and women. Support also was found for an expressive pathway between own SSD and partner nonsexual self-disclosure (NSD) and men's sexual satisfaction, and between own NSD and women's sexual satisfaction. These results are interpreted in terms of mechanisms for establishing and maintaining sexual satisfaction in long-term relationships in men and women.

Social support influences preferences for feminine facial cues in potential social partners.

PubMed

Watkins, Christopher D; DeBruine, Lisa M; Little, Anthony C; Jones, Benedict C

2012-01-01

Most previous studies of individual differences in women's and men's preferences for sexually dimorphic physical characteristics have focused on the importance of mating-related factors for judgments of opposite-sex individuals. Although studies have suggested that people may show stronger preferences for feminine individuals of both sexes under conditions where social support may be at a premium (e.g., during phases of the menstrual cycle where raised progesterone prepares women's bodies for pregnancy), these studies have not demonstrated that perceptions of available social support directly influence femininity preferences. Here we found that (1) women and men randomly allocated to low social support priming conditions demonstrated stronger preferences for feminine shape cues in own- and opposite-sex faces than did individuals randomly allocated to high social support priming conditions and (2) that people perceived men and women displaying feminine characteristics as more likely to provide them with high-quality social support than those displaying relatively masculine characteristics. Together, these findings suggest that social support influences face preferences directly, potentially implicating facultative responses whereby people increase their preferences for pro-social individuals under conditions of low social support.

Women's Preferences for Penis Size: A New Research Method Using Selection among 3D Models

PubMed Central

Park, Jaymie; Leung, Shannon

2015-01-01

Women’s preferences for penis size may affect men’s comfort with their own bodies and may have implications for sexual health. Studies of women’s penis size preferences typically have relied on their abstract ratings or selecting amongst 2D, flaccid images. This study used haptic stimuli to allow assessment of women’s size recall accuracy for the first time, as well as examine their preferences for erect penis sizes in different relationship contexts. Women (N = 75) selected amongst 33, 3D models. Women recalled model size accurately using this method, although they made more errors with respect to penis length than circumference. Women preferred a penis of slightly larger circumference and length for one-time (length = 6.4 inches/16.3 cm, circumference = 5.0 inches/12.7 cm) versus long-term (length = 6.3 inches/16.0 cm, circumference = 4.8 inches/12.2 cm) sexual partners. These first estimates of erect penis size preferences using 3D models suggest women accurately recall size and prefer penises only slightly larger than average. PMID:26332467

The health of a nation predicts their mate preferences: cross-cultural variation in women's preferences for masculinized male faces.

PubMed

DeBruine, Lisa M; Jones, Benedict C; Crawford, John R; Welling, Lisa L M; Little, Anthony C

2010-08-07

Recent formulations of sexual selection theory emphasize how mate choice can be affected by environmental factors, such as predation risk and resource quality. Women vary greatly in the extent to which they prefer male masculinity and this variation is hypothesized to reflect differences in how women resolve the trade-off between the costs (e.g. low investment) and benefits (e.g. healthy offspring) associated with choosing a masculine partner. A strong prediction of this trade-off theory is that women's masculinity preferences will be stronger in cultures where poor health is particularly harmful to survival. We investigated the relationship between women's preferences for male facial masculinity and a health index derived from World Health Organization statistics for mortality rates, life expectancies and the impact of communicable disease. Across 30 countries, masculinity preference increased as health decreased. This relationship was independent of cross-cultural differences in wealth or women's mating strategies. These findings show non-arbitrary cross-cultural differences in facial attractiveness judgements and demonstrate the use of trade-off theory for investigating cross-cultural variation in women's mate preferences.

Women's Preferences for Penis Size: A New Research Method Using Selection among 3D Models.

PubMed

Prause, Nicole; Park, Jaymie; Leung, Shannon; Miller, Geoffrey

2015-01-01

Women's preferences for penis size may affect men's comfort with their own bodies and may have implications for sexual health. Studies of women's penis size preferences typically have relied on their abstract ratings or selecting amongst 2D, flaccid images. This study used haptic stimuli to allow assessment of women's size recall accuracy for the first time, as well as examine their preferences for erect penis sizes in different relationship contexts. Women (N = 75) selected amongst 33, 3D models. Women recalled model size accurately using this method, although they made more errors with respect to penis length than circumference. Women preferred a penis of slightly larger circumference and length for one-time (length = 6.4 inches/16.3 cm, circumference = 5.0 inches/12.7 cm) versus long-term (length = 6.3 inches/16.0 cm, circumference = 4.8 inches/12.2 cm) sexual partners. These first estimates of erect penis size preferences using 3D models suggest women accurately recall size and prefer penises only slightly larger than average.

Partnering Patterns and Sexual Behavior Among Korean Men Who Have Sex With Men.

PubMed

Jung, Minsoo

2016-01-01

This qualitative study investigates the different methods for selecting sex partners by Korean homosexuals considering factors related to homosexual identity and sexual behavior. We take the approach of the grounded theory to examine the issue of sexual partnering of men who have sex with men (MSM). In-depth interviews of urban MSM and bisexual men were conducted. The snowball sampled through a MSM portal web site. Three key informants from the several areas were collected through a MSM portal website, and then, participants were gradually recruited with the snowball samplings in South Korea, 2011 (n=32). The results of coding the interviews based on the grounded theory approach identified three types of partnering: 1) MSM who do not prefer anal intercourse, but pursue safe sex in long-term relationships with fixed partners; 2) those who have fixed partners and perform anal sex, a category into which both MSM and bisexuals fall; and 3) those engaged in anal sex, but enjoy a concurrent sexual relationship without having fixed partners, which was common among bisexuals. The findings from this study elucidate several MSM and bisexual partnering types practice safe sex. This diversity in MSM partnering may increase the vulnerability of some MSM to HIV infection as safe-sex practices remain a matter of individual choice. Changes in Korean societal policies are necessary to enhance capacity building and encourage the practice of safe sex at the community level.

What communication strategies do AAC users want their communication partners to use? A preliminary study.

PubMed

Midtlin, Hanne Sofie; Næss, Kari-Anne B; Taxt, Tone; Karlsen, Asgjerd Vea

2015-01-01

This study aims to investigate which communication strategies the people, who use augmentative and alternative communication (AAC), want their communication partners to use. We interviewed eight children using Talking Mats to examine the AAC users' own opinion. The results showed that they wanted their communication partners to take the initiative, to repair the breaks when communication breakdowns occurred, and to invest time in understanding what AAC users wanted to express. These results underlined the significant responsibility of communication partners and revealed the need for AAC user interventions to help them be active communicators. More research needs to emphasise AAC users' opinions about communication partner strategies to improve the communication processes for AAC-users and thereby promote social inclusion in natural environment. Implications for Rehabilitation Communication partner strategies can affect communication as well as personal development and life quality for augmentative and alternative communication (AAC) users. In AAC-users opinion, their communication partners should take the communicative initiative, repair the breaks when communication breakdowns occurred, and invest time in understanding what AAC-users want to express. There is a need to inform and educate communication partners, especially those unfamiliar to AAC users. Practical training sessions, clinician modelling and written materials may be helpful. A communication partner guide can be adapted to each individual AAC user who explains his or her communication preferences. Additionally, there is a need that the clinicians promote active rather than passive communication from AAC users, which requires that they have access to the necessary symbols.

Nonfatal Gun Use in Intimate Partner Violence: A Systematic Review of the Literature.

PubMed

Sorenson, Susan B; Schut, Rebecca A

2016-09-14

Guns figure prominently in the homicide of women by an intimate partner. Less is known, however, about their nonfatal use against an intimate partner. Following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, we searched eight electronic databases and identified 10 original research articles that reported the prevalence of the nonfatal use of firearms against an intimate partner. Results indicate that (1) there is relatively little research on the subject of intimate partners' nonfatal gun use against women. (2) The number of U.S. women alive today who have had an intimate partner use a gun against them is substantial: About 4.5 million have had an intimate partner threaten them with a gun and nearly 1 million have been shot or shot at by an intimate partner. Whether nonfatal gun use is limited to the extreme form of abuse (battering) or whether it occurs in the context of situational violence remains to be seen. Regardless, when it comes to the likely psychological impact, it may be a distinction without a difference; because guns can be lethal quickly and with relatively little effort, displaying or threatening with a gun can create a context known as coercive control, which facilitates chronic and escalating abuse. Implications for policy, practice, and research are discussed, all of which include expanding an implicit focus on homicide to include an intimate partner's nonfatal use of a gun. © The Author(s) 2016.

Sexual orientation of female-to-male transsexuals: a comparison of homosexual and nonhomosexual types.

PubMed

Chivers, M L; Bailey, J M

2000-06-01

Homosexual and nonhomosexual (relative to genetic sex) female-to-male transsexuals (FTMs) were compared on a number of theoretically or empirically derived variables. Compared to nonhomosexual FTMs, homosexual FTMs reported greater childhood gender nonconformity, preferred more feminine partners, experienced greater sexual rather than emotional jealousy, were more sexually assertive, had more sexual partners, had a greater desire for phalloplasty, and had more interest in visual sexual stimuli. Homosexual and nonhomosexual FTMs did not differ in their overall desire for masculinizing body modifications, adult gender identity, or importance of partner social status, attractiveness, or youth. These findings indicate that FTMs are not a homogeneous group and vary in ways that may be useful in understanding the relation between sexual orientation and gender identity.

Romantic ideals, mate preferences, and anticipation of future difficulties in marital life: a comparative study of young adults in India and America

PubMed Central

Bejanyan, Kathrine; Marshall, Tara C.; Ferenczi, Nelli

2014-01-01

Previous studies have established that Indians tend to be greater in collectivism and gender role traditionalism than Americans. The purpose of the present study was to examine whether these differences explained further cultural differences in romantic beliefs, traditional mate preferences, and anticipation of future difficulties in marital life. Results revealed that Indians reported greater collectivism than Americans and, in turn, held stronger romantic beliefs. Additionally, Indians' greater collectivism and endorsement of more traditional gender roles in part predicted their preferences for a marital partner possessing traditional characteristics, and fully accounted for their heightened concerns about encountering future difficulties in marital life. These results shed light on the processes underlying cultural differences in relationship attitudes and preferences, and point to culture-specific therapies to enhance marital functioning. PMID:25520681

Environmental Influences on Mate Preferences as Assessed by a Scenario Manipulation Experiment

PubMed Central

Marzoli, Daniele; Moretto, Francesco; Monti, Aura; Tocci, Ornella; Roberts, S. Craig; Tommasi, Luca

2013-01-01

Many evolutionary psychology studies have addressed the topic of mate preferences, focusing particularly on gender and cultural differences. However, the extent to which situational and environmental variables might affect mate preferences has been comparatively neglected. We tested 288 participants in order to investigate the perceived relative importance of six traits of an ideal partner (wealth, dominance, intelligence, height, kindness, attractiveness) under four different hypothetical scenarios (status quo/nowadays, violence/post-nuclear, poverty/resource exhaustion, prosperity/global well-being). An equal number of participants (36 women, 36 men) was allotted to each scenario; each was asked to allocate 120 points across the six traits according to their perceived value. Overall, intelligence was the trait to which participants assigned most importance, followed by kindness and attractiveness, and then by wealth, dominance and height. Men appraised attractiveness as more valuable than women. Scenario strongly influenced the relative importance attributed to traits, the main finding being that wealth and dominance were more valued in the poverty and post-nuclear scenarios, respectively, compared to the other scenarios. Scenario manipulation generally had similar effects in both sexes, but women appeared particularly prone to trade off other traits for dominance in the violence scenario, and men particularly prone to trade off other traits for wealth in the poverty scenario. Our results are in line with other correlational studies of situational variables and mate preferences, and represent strong evidence of a causal relationship of environmental factors on specific mate preferences, corroborating the notion of an evolved plasticity to current ecological conditions. A control experiment seems to suggest that our scenarios can be considered as realistic descriptions of the intended ecological conditions. PMID:24069291

Are Nursing Students Appropriate Partners for the Interdisciplinary Training of Surgery Residents?

PubMed

Stefanidis, Dimitrios; Ingram, Katherine M; Williams, Kristy H; Bencken, Crystal L; Swiderski, Dawn

2015-01-01

Interdisciplinary team training in a simulation center recreates clinical team interactions and holds promise in improving teamwork of clinicians by breaking down educational silos. The objective of our study was to assess the appropriateness of interdisciplinary training with general surgery residents and nursing students. Over 2 consecutive academic years (2012-2013 and 2013-2014), general surgery residents participated in interdisciplinary team-training simulation-based sessions with senior nursing students. Scenario objectives included demonstration of appropriate teamwork and communication, and clinical decision making; sessions incorporated interdisciplinary debriefing of the scenarios. Participants were asked to assess their team-training experience and the appropriateness of their team-training partner. Responses were compared. A total of 16 team-training sessions were conducted during the study period. Overall, 12 surgery residents (67%) and 44 nursing students (63%) who had participated in at least 1 session responded to the survey. Although both residents and nursing students indicated that the knowledge and team skills acquired during these sessions were useful to them in clinical practice (73% vs 86%, respectively; p = not significant), residents rated their educational value lower (3.3 vs 4.3 on a 5-point scale, respectively; p < 0.01) and only 18% of the residents felt that these sessions should be continued compared with 90% of nursing students (p < 0.05). Most useful components of the sessions were participation in the scenario (73%) and debriefing (54%) for residents and for the nursing students, debriefing (91%), observation of others (68%), and interaction with resident physicians (66%) ranked highest; 48% of student nurses preferred residents as team-training partners whereas 100% residents preferred practicing nurses and 0% with nursing students owing to their limited clinical experience. Interdisciplinary team training and debriefing of surgery residents with nursing students is feasible and highly valued by nursing students. Nevertheless, our experience indicates that residents do not prefer nursing students as team-training partners owing to their limited clinical experience and would rather train with experienced nurses. Copyright © 2015 Association of Program Directors in Surgery. Published by Elsevier Inc. All rights reserved.

The Unresponsive Partner: Roles of Social Status, Auditory Feedback, and Animacy in Coordination of Joint Music Performance

PubMed Central

Demos, Alexander P.; Carter, Daniel J.; Wanderley, Marcelo M.; Palmer, Caroline

2017-01-01

We examined temporal synchronization in joint music performance to determine how social status, auditory feedback, and animacy influence interpersonal coordination. A partner’s coordination can be bidirectional (partners adapt to the actions of one another) or unidirectional (one partner adapts). According to the dynamical systems framework, bidirectional coordination should be the optimal (preferred) state during live performance. To test this, 24 skilled pianists each performed with a confederate while their coordination was measured by the asynchrony in their tone onsets. To promote social balance, half of the participants were told the confederate was a fellow participant – an equal social status. To promote social imbalance, the other half was told the confederate was an experimenter – an unequal social status. In all conditions, the confederate’s arm and finger movements were occluded from the participant’s view to allow manipulation of animacy of the confederate’s performances (live or recorded). Unbeknownst to the participants, half of the confederate’s performances were replaced with pre-recordings, forcing the participant into unidirectional coordination during performance. The other half of the confederate’s performances were live, which permitted bidirectional coordination between performers. In a final manipulation, both performers heard the auditory feedback from one or both of the performers’ parts removed at unpredictable times to disrupt their performance. Consistently larger asynchronies were observed in performances of unidirectional (recorded) than bidirectional (live) performances across all conditions. Participants who were told the confederate was an experimenter reported their synchrony as more successful than when the partner was introduced as a fellow participant. Finally, asynchronies increased as auditory feedback was removed; removal of the confederate’s part hurt coordination more than removal of the participant’s part in live performances. Consistent with the assumption that bidirectional coupling yields optimal coordination, an unresponsive partner requires the other member to do all the adapting for the pair to stay together. PMID:28261123

DOE Office of Scientific and Technical Information (OSTI.GOV)

Puttagunta, S.; Grab, J.; Williamson, J.

Working with builder partners on test homes allows for vetting of whole-house building strategies to eliminate any potential unintended consequences prior to implementing these solution packages on a production scale. To support this research, CARB partnered with Preferred Builders Inc. on a high-performance test home in Old Greenwich, CT. The philosophy and science behind the 2,700 ft2 "Performance House" was based on the premise that homes should be safe, healthy, comfortable, durable, efficient, and adapt with the homeowners. The technologies and strategies used in the "Performance House" were not cutting-edge, but simply "best practices practiced". The focus was on simplicitymore » in construction, maintenance, and operation. When seeking a 30% source energy savings targets over a comparable 2009 IECC code-built home in the cold climate zone, nearly all components of a home must be optimized. Careful planning and design are critical. To help builders and architects seeking to match the performance of this home, a step-by-step guide through the building shell components of DOE's Challenge Home are provided in a pictorial story book. The end result was a DOE Challenge Home that achieved a HERS Index Score of 20 (43 without PV, the minimum target was 55 for compliance). This home was also awarded the 2012 HOBI for Best Green Energy Efficient Home from the Home Builders & Remodelers Association of Connecticut.« less

DOE Office of Scientific and Technical Information (OSTI.GOV)

Puttagunta, S.; Grab, J.; Williamson, J.

Working with builder partners on a test homes allows for vetting of whole-house building strategies to eliminate any potential unintended consequences prior to implementing these solution packages on a production scale. To support this research, CARB partnered with Preferred Builders Inc. on a high-performance test home in Old Greenwich, CT. The philosophy and science behind the 2,700 ft2 'Performance House' was based on the premise that homes should be safe, healthy, comfortable, durable, efficient, and adapt with the homeowners. The technologies and strategies used in the 'Performance House' were not cutting-edge, but simply 'best practices practiced'. The focus was onmore » simplicity in construction, maintenance, and operation. When seeking a 30% source energy savings targets over a comparable 2009 IECC code-built home in the cold climate zone, nearly all components of a home must be optimized. Careful planning and design are critical. To help builders and architects seeking to match the performance of this home, a step-by-step guide through the building shell components of DOE's Challenge Home are provided in a pictorial story book. The end result was a DOE Challenge Home that achieved a HERS Index Score of 20 (43 without PV, the minimum target was 55 for compliance). This home was also awarded the 2012 HOBI for Best Green Energy Efficient Home from the Home Builders & Remodelers Association of Connecticut.« less

Nonnutritive sucking: one of the major determinants of filial love.

PubMed

Val-Laillet, David; Nowak, Raymond; Giraud, Sandra; Tallet, Céline; Boivin, Xavier

2006-04-01

The present study investigated the rewarding effects of nonnutritive sucking on the development of a filial preference. Two experiments were conducted to test whether nonnutritive visceral and oral stimuli have reinforcing properties independent from each other or act in synergy. Lambs could interact freely with their dam but were deprived of suckling by covering the udder for the first 12 hr. In Experiment 1, suckling was prevented and replaced by human giving, in the presence of the mother, either a bottle of water (B5 and B2.5: 5% or 2.5% birth weight, BW, divided into seven portions over 12 hr) or water via tube-feeding (I5 and I2.5: 5% or 2.5% BW, also divided into seven portions over 12 hr). During a two-choice test performed at 12 hr after birth, only B5 and I5 lambs preferred their mother to an alien ewe however, B5 were faster at choosing their mother at the beginning of the test. B2.5 and I2.5 lambs made a random choice. In Experiment 2, suckling was prevented and replaced by human giving, in the presence of the mother, either a bottle of water (B2.5: 2.5% BW, divided into seven portions over 12 hr) or water via tube-feeding (I10 and I2.5: 10% or 2.5% BW, also divided into seven portions over 12 hr). During a two-choice test at 12 hr, tube-fed lambs (I10 and I2.5) preferred their mother to a human. B2.5 lambs were equally attracted to both partners and spent more time near the human than lambs from the other groups. In a test of reactivity to a human performed on neonates isolated from their mother, B2.5 lambs explored the human much more than the other lambs. The presence of the human had soothing properties in B2.5 lambs and once the human left, they were the only lambs displaying enhanced vocal and locomotor activity. In these experiments, nonnutritive gastrointestinal stimuli induced a preference for the mother whereas nonnutritive sucking led to a strong positive relationship with the human. These results suggest that when lambs suckle their dam, the development of filial bonding is facilitated through the combined effects of oral and gastrointestinal stimuli. Copyright (c) 2006 Wiley Periodicals, Inc.

Increasing the Effectiveness of Vaginal Microbicides: A Biophysical Framework to Rethink Behavioral Acceptability

PubMed Central

Verguet, Stéphane; Young Holt, Bethany; Szeri, Andrew J.

2010-01-01

Background Microbicide candidates delivered via gel vehicles are intended to coat the vaginal epithelium after application. The coating process depends on intrinsic biophysical properties of the gel texture, which restricts the potential choices for an effective product: the gel first must be physically synthesizable, then acceptable to the user, and finally applied in a manner promoting timely adequate coating, so that the user adherence is optimized. We present a conceptual framework anchoring microbicide behavioral acceptability within the fulfillment of the product biophysical requirements. Methods We conducted a semi-qualitative/quantitative study targeting women aged 18–55 in Northern California to assess user preferences for microbicide gel attributes. Attributes included: (i) the wait time between application and intercourse, (ii) the gel texture and (iii) the trade-off between wait time and gel texture. Wait times were assessed using a mathematical model determining coating rates depending upon the gel's physical attributes. Results 71 women participated. Results suggest that women would independently prefer a gel spreading rapidly, in 2 to 15 minutes (P<0.0001), as well as one that is thick or slippery (P<0.02). Clearly, thick gels do not spread rapidly; hence the motivation to study the trade-off. When asked the same question ‘constrained’ by the biophysical reality, women indicated no significant preference for a particular gel thickness (and therefore waiting time) (P>0.10) for use with a steady partner, a preference for a watery gel spreading rapidly rather than one having intermediate properties for use with a casual partner (P = 0.024). Conclusions Biophysical constraints alter women's preferences regarding acceptable microbicide attributes. Product developers should offer a range of formulations in order to address all preferences. We designed a conceptual framework to rethink behavioral acceptability in terms of biophysical requirements that can help improve adherence in microbicide use ultimately enhancing microbicide effectiveness. PMID:21124931

Partner testing, linkage to care, and HIV-free survival in a program to prevent parent-to-child transmission of HIV in the Highlands of Papua New Guinea

PubMed Central

Carmone, Andy; Bomai, Korai; Bongi, Wayaki; Frank, Tarua Dale; Dalepa, Huleve; Loifa, Betty; Kiromat, Mobumo; Das, Sarthak; Franke, Molly F.

2014-01-01

Background To eliminate new pediatric HIV infections, interventions that facilitate adherence, including those that minimize stigma, enhance social support, and mitigate the influence of poverty, will likely be required in addition to combination antiretroviral therapy (ART). We examined the relationship between partner testing and infant outcome in a prevention of parent-to-child transmission of HIV program, which included a family-centered case management approach and a supportive environment for partner disclosure and testing. Design We analyzed routinely collected data for women and infants who enrolled in the parent-to-child transmission of HIV program at Goroka Family Clinic, Eastern Highlands Provincial Hospital, Papua New Guinea, from 2007 through 2011. Results Two hundred and sixty five women were included for analysis. Of these, 226 (85%) had a partner, 127 (56%) of whom had a documented HIV test. Of the 102 HIV-infected partners, 81 (79%) had been linked to care. In adjusted analyses, we found a significantly higher risk of infant death, infant HIV infection, or loss to follow-up among mother–infant pairs in which the mother reported having no partner or a partner who was not tested or had an unknown testing status. In a second multivariable analysis, infants born to women with more time on ART or who enrolled in the program in later years experienced greater HIV-free survival. Conclusions In a program with a patient-oriented and family-centered approach to prevent vertical HIV transmission, the majority of women's partners had a documented HIV test and, if positive, linkage to care. Having a tested partner was associated with program retention and HIV-free survival for infants. Programs aiming to facilitate diagnosis disclosure, partner testing, and linkage to care may contribute importantly to the elimination of pediatric HIV. PMID:25172429

Pair-bonded humans conform to sexual stereotypes in web-based advertisements for extra-marital partners.

PubMed

Kelley, Trish C; Hare, James F

2010-10-20

Partners advertisements provide advertisers with access to a large pool of prospective mates, and have proven useful in documenting sex differences in human mating preferences. We coded data from an Internet site (AshleyMadison.com) catering to advertisers engaged in existing pair-bonded relationships. While we predicted that pair-bonding may liberate advertisers from conforming to sexual stereotypes of male promiscuity and female choosiness, our results are uniformly consistent with those stereotypes. Our findings thus provide further evidence that human mating behavior is highly constrained by fundamental biological differences between males and females.

Development of an Internet-Administered Cognitive Behavior Therapy Program (ENGAGE) for Parents of Children Previously Treated for Cancer: Participatory Action Research Approach.

PubMed

Wikman, Anna; Kukkola, Laura; Börjesson, Helene; Cernvall, Martin; Woodford, Joanne; Grönqvist, Helena; von Essen, Louise

2018-04-18

Parenting a child through cancer is a distressing experience, and a subgroup of parents report negative long-term psychological consequences years after treatment completion. However, there is a lack of evidence-based psychological interventions for parents who experience distress in relation to a child's cancer disease after end of treatment. One aim of this study was to develop an internet-administered, cognitive behavior therapy-based, psychological, guided, self-help intervention (ENGAGE) for parents of children previously treated for cancer. Another aim was to identify acceptable procedures for future feasibility and efficacy studies testing and evaluating the intervention. Participatory action research methodology was used. The study included face-to-face workshops and related Web-based exercises. A total of 6 parents (4 mothers, 2 fathers) of children previously treated for cancer were involved as parent research partners. Moreover, 2 clinical psychologists were involved as expert research partners. Research partners and research group members worked collaboratively throughout the study. Data were analyzed iteratively using written summaries of the workshops and Web-based exercises parallel to data collection. A 10-week, internet-administered, cognitive behavior therapy-based, psychological, guided, self-help intervention (ENGAGE) was developed in collaboration with parent research partners and expert research partners. The content of the intervention, mode and frequency of e-therapist support, and the individualized approach for feedback were modified based on the research partner input. Shared solutions were reached regarding the type and timing of support from an e-therapist (eg, initial video or telephone call, multiple methods of e-therapist contact), duration and timing of intervention (eg, 10 weeks, 30-min assessments), and the removal of unnecessary support functions (eg, removal of chat and forum functions). Preferences for study procedures in future studies testing and evaluating the intervention were discussed; consensus was not reached for all aspects. To the best of our knowledge, this study is the first use of a participatory action research approach to develop a psychological intervention for parents of children previously treated for cancer and to identify acceptable study procedures. Involvement of parents with lived experience was vital in the development of a potentially relevant and acceptable intervention for this population. ©Anna Wikman, Laura Kukkola, Helene Börjesson, Martin Cernvall, Joanne Woodford, Helena Grönqvist, Louise von Essen. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 18.04.2018.

Preferences for Masculinity Across Faces, Bodies, and Personality Traits in Homosexual and Bisexual Chinese Men: Relationship to Sexual Self-Labels and Attitudes Toward Masculinity.

PubMed

Zheng, Lijun; Zheng, Yong

2016-04-01

This study examined preferences for masculinity across faces, bodies, and personality traits in 462 homosexual and bisexual men in China. The impact of sexual self-labels (tops, bottoms, and versatiles) and attitude toward male masculinity on preferences for masculinity were also examined. Participants were asked to select the seven most desirable personality traits for a romantic partner from a list of 32 traits of gender roles. A series of 10 masculinized and feminized dimorphic images of male faces and bodies were then presented to participants, who were required to identify their preferred image. The results indicated that participants preferred more masculine faces, bodies, and personality traits. Significant differences in preferences for masculinity were found between tops, bottoms, and versatiles, with both bottoms and versatiles preferring more masculine faces, bodies, and personality traits than did tops. In addition, preferences for masculinity across faces, bodies, and traits showed a significant positive correlation with each other for all sexual self-labels, indicating a consistent preference for masculinity. Attitude toward male masculinity was significantly correlated with facial, body, and trait preferences; individuals with more rigid attitudes toward male masculinity (low acceptance of femininity in males) preferred more masculine characters. These results indicate a consistent preference for masculinity between both physical features (faces and bodies) and personality traits (instrumentality) that may be affected by observer perception.

HIV test uptake among MSM in China: Implications for enhanced HIV test promotion campaigns among key populations.

PubMed

Han, Larry; Wei, Chongyi; Muessig, Kathryn E; Bien, Cedric H; Meng, Gang; Emch, Michael E; Tucker, Joseph D

2017-01-01

Despite global efforts to increase HIV test uptake among men who have sex with men (MSM), social stigma and negative attitudes toward homosexuality hinder the effectiveness of traditional test promotion campaigns. Increasing HIV test uptake requires greater understanding of the conditions that facilitate decisions to get tested. We conducted an online survey hosted by two of the most highly frequented MSM web portals in China. A generalised ordered logistic regression analysis was conducted to determine factors associated with HIV testing behaviour. Compared to men who had never tested for HIV, men who had tested in the past year were more likely to have never engaged in sex with women, have multiple male sex partners in the past 3 months and have disclosed their sexual orientation to others. MSM found testing at local Chinese Centers for Disease Control and Prevention (80.7%), gay men's community-based organisations (80.2%) and public hospitals (70.9%) to be acceptable, while saunas (50.5%) and gay bars (41.8%) were found to be unacceptable testing venues. Our study shows that MSM in China prefer to test at venues that guarantee confidentiality, quality and quick results. Our study also suggests that self-testing may be a feasible approach to increase test uptake.

HIV test uptake among MSM in China: Implications for enhanced HIV test promotion campaigns among key populations

PubMed Central

Han, Larry; Wei, Chongyi; Muessig, Kathryn E.; Bien, Cedric H.; Meng, Gang; Emch, Michael E.; Tucker, Joseph D.

2016-01-01

Despite global efforts to increase HIV test uptake among men who have sex with men (MSM), social stigma and negative attitudes toward homosexuality hinder the effectiveness of traditional test promotion campaigns. Increasing HIV test uptake requires greater understanding of the conditions that facilitate decisions to get tested. We conducted an online survey hosted by two of the most highly frequented MSM web portals in China. A generalised ordered logistic regression analysis was conducted to determine factors associated with HIV testing behaviour. Compared to men who had never tested for HIV, men who had tested in the past year were more likely to have never engaged in sex with women, have multiple male sex partners in the past 3 months and have disclosed their sexual orientation to others. MSM found testing at local Chinese Centers for Disease Control and Prevention (80.7%), gay men’s community-based organisations (80.2%) and public hospitals (70.9%) to be acceptable, while saunas (50.5%) and gay bars (41.8%) were found to be unacceptable testing venues. Our study shows that MSM in China prefer to test at venues that guarantee confidentiality, quality and quick results. Our study also suggests that self-testing may be a feasible approach to increase test uptake. PMID:26785328

Effects of potential partners' physical attractiveness and socioeconomic status on sexuality and partner selection.

PubMed

Townsend, J M; Levy, G D

1990-04-01

Male (n = 170) and female (n = 212) college students viewed photographs, which had been prerated for physical attractiveness, of three opposite-sex individuals. These photographs were paired with three levels of occupational status and income. Subjects indicated their willingness to engage in relationships of varying levels of sexual intimacy and marital potential with the portrayed individuals. Analyses of variance, correlations, and trend analyses supported the hypotheses. Compared to men, women are more likely to prefer or insist that sexual intercourse occur in relationships that involve affection and marital potential, and women place more emphasis than men do on partners' SES in such relationships. Consequently, men's SES and their willingness and ability to invest affection and resources in relationships may often outweigh the effects of their physical attractiveness in women's actual selection of partners. These results and the literature reviewed are more consistent with parental investment theory than with the view that these sex differences are solely the result of differential access to resources and differential socialization.

Machiavellianism, Relationship Satisfaction, and Romantic Relationship Quality

PubMed Central

Brewer, Gayle; Abell, Loren

2017-01-01

Machiavellianism is characterised by a manipulative interpersonal style, willingness to exploit others, and a preference for emotionally detached relationships. The present studies investigate the extent to which Machiavellianism influences relationship satisfaction and romantic relationship quality. In Study 1, 194 heterosexual partnered women completed Machiavellianism and Relationship Satisfaction measures. Women with higher levels of Machiavellianism reported lower levels of relationship satisfaction. In Study 2, 132 heterosexual partnered women completed Machiavellianism, Trust, Commitment, Control, and Emotional Abuse scales. Women with higher levels of Machiavellianism perceived their partners to be less dependable, reported less faith in their partners, and were less willing to persist with the relationship than those with low levels of Machiavellianism. With regards to negative behavior, Machiavellianism predicted each form of control and emotional abuse investigated, such that those with high levels of Machiavellianism were more likely to engage in controlling behavior and emotional abuse. Findings have important implications for the prediction of romantic relationship quality and in particular for negative behavior such as control and abuse. PMID:28904597

Machiavellianism, Relationship Satisfaction, and Romantic Relationship Quality.

PubMed

Brewer, Gayle; Abell, Loren

2017-08-01

Machiavellianism is characterised by a manipulative interpersonal style, willingness to exploit others, and a preference for emotionally detached relationships. The present studies investigate the extent to which Machiavellianism influences relationship satisfaction and romantic relationship quality. In Study 1, 194 heterosexual partnered women completed Machiavellianism and Relationship Satisfaction measures. Women with higher levels of Machiavellianism reported lower levels of relationship satisfaction. In Study 2, 132 heterosexual partnered women completed Machiavellianism, Trust, Commitment, Control, and Emotional Abuse scales. Women with higher levels of Machiavellianism perceived their partners to be less dependable, reported less faith in their partners, and were less willing to persist with the relationship than those with low levels of Machiavellianism. With regards to negative behavior, Machiavellianism predicted each form of control and emotional abuse investigated, such that those with high levels of Machiavellianism were more likely to engage in controlling behavior and emotional abuse. Findings have important implications for the prediction of romantic relationship quality and in particular for negative behavior such as control and abuse.

Influence of Length and Amino Acid Composition on Dimer Formation of Immunoglobulin based Chimera.

PubMed

Manoj, Patidar; Naveen, Yadav; Dalai, Sarat Kumar

2017-10-18

The dimeric immunoglobulin (Ig) chimeras used for drug targeting and delivery are preferred biologics over their monomeric forms. Designing these Ig chimeras involves critical selection of a suitable Ig base that ensures dimer formation. In the present study, we systematically analyzed several factors that influence the formation of dimeric chimera. We designed and predicted 608 cytokine-Ig chimeras where we tested the contributions of (1) different domains of Ig constant heavy chain, (2) length of partner proteins, (3) amino acid (AA) composition and (4) position of cysteine in the formation of homodimer. The sequences of various Ig and cytokines were procured from Uniprot database, fused and submitted to COTH (CO-THreader) server for the prediction of dimer formation. Contributions of different domains of Ig constant heavy chain, length of chimeric proteins, AA composition and position of cysteine were tested to the homodimer formation of 608 cytokine-Ig chimeras. Various in silico approaches were adopted for validating the in silico findings. Experimentally we also validated our approach by expressing in CHO cells the chimeric design of shorter cytokine with Ig domain and analyzing the protein by SDS-PAGE. Our results advocate that while the CH1 region and the Hinge region of Ig heavy chain are critical, the length of partner proteins also crucially influences homodimer formation of the Ig-based chimera. We also report that the CH1 domain of Ig is not required for dimer formation of Ig based chimera in the presence of larger partner proteins. For shorter partner proteins fused to CH2-CH3, however, careful selection of partner sequence is critical, particularly the hydrophobic AA composition, cysteine content & their positions, disulphide bond formation property, and the linker sequences. We validated our in silico observation by various bioinformatics tools and checked the ability of chimeras to bind with the receptors of native protein by docking studies. As a proof of concept, we have expressed the chimeric proteins in CHO cells and found that our design favors the synthesis of dimeric proteins. Our structural prediction study suggests that extra amino acids in the range of 15-20 added to the CH2 domain of Ig is a critical requirement to make homodimer. This information from our study will have implication in designing efficacious homodimeric chimera. Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.org.

Interaction specificity and coexpression of rice NPR1 homologs 1 and 3 (NH1 and NH3), TGA transcription factors and Negative Regulator of Resistance (NRR) proteins.

PubMed

Chern, Mawsheng; Bai, Wei; Ruan, Deling; Oh, Taeyun; Chen, Xuewei; Ronald, Pamela C

2014-06-11

The nonexpressor of pathogenesis-related genes 1, NPR1 (also known as NIM1 and SAI1), is a key regulator of SA-mediated systemic acquired resistance (SAR) in Arabidopsis. In rice, the NPR1 homolog 1 (NH1) interacts with TGA transcriptional regulators and the Negative Regulator of Resistance (NRR) protein to modulate the SAR response. Though five NPR1 homologs (NHs) have been identified in rice, only NH1 and NH3 enhance immunity when overexpressed. To understand why NH1 and NH3, but not NH2, NH4, or NH5, contribute to the rice immune response, we screened TGA transcription factors and NRR-like proteins for interactions specific to NH1 and NH3. We also examined their co-expression patterns using publicly available microarray data. We tested five NHs, four NRR homologs (RHs), and 13 rice TGA proteins for pair-wise protein interactions using yeast two-hybrid (Y2H) and split YFP assays. A survey of 331 inter-family interactions revealed a broad, complex protein interaction network. To investigate preferred interaction partners when all three families of proteins were present, we performed a bridged split YFP assay employing YFPN-fused TGA, YFPC-fused RH, and NH proteins without YFP fusions. We found 64 tertiary interactions mediated by NH family members among the 120 sets we examined. In the yeast two-hybrid assay, each NH protein was capable of interacting with most TGA and RH proteins. In the split YFP assay, NH1 was the most prevalent interactor of TGA and RH proteins, NH3 ranked the second, and NH4 ranked the third. Based on their interaction with TGA proteins, NH proteins can be divided into two subfamilies: NH1, NH2, and NH3 in one family and NH4 and NH5 in the other.In addition to evidence of overlap in interaction partners, co-expression analyses of microarray data suggest a correlation between NH1 and NH3 expression patterns, supporting their common role in rice immunity. However, NH3 is very tightly co-expressed with RH1 and RH2, while NH1 is strongly, inversely co-expressed with RH proteins, representing a difference between NH1 and NH3 expression patterns. Our genome-wide surveys reveal that each rice NH protein can partner with many rice TGA and RH proteins and that each NH protein prefers specific interaction partners. NH1 and NH3 are capable of interacting strongly with most rice TGA and RH proteins, whereas NH2, NH4, and NH5 have weaker, limited interaction with TGA and RH proteins in rice cells. We have identified rTGA2.1, rTGA2.2, rTGA2.3, rLG2, TGAL2 and TGAL4 proteins as the preferred partners of NH1 and NH3, but not NH2, NH4, or NH5. These TGA proteins may play an important role in NH1- and NH3-mediated immune responses. In contrast, NH4 and NH5 preferentially interact with TGAL5, TGAL7, TGAL8 and TGAL9, which are predicted to be involved in plant development.

Intra-family role expectations and reluctance to change identified as key barriers to expanding vegetable consumption patterns during interactive family-based program for Appalachian low-income food preparers.

PubMed

Brown, J Lynne; Wenrich, Tionni R

2012-08-01

Few Americans eat sufficient vegetables, especially the protective deep orange and dark green vegetables. To address this, a community-based wellness program to broaden vegetables served at evening meals targeting Appalachian food preparers and their families was tested in a randomized, controlled intervention. Food preparers (n=50) were predominately married (88%), white (98%), and female (94%), with several children living at home. Experimental food preparers (n=25) attended the program sessions and controls (n=25) were mailed relevant handouts and recipes. At program sessions, participants received nutrition information, hands-on cooking instruction, and prepared recipes to take home for family evaluation. As qualitative assessment, 10 couples from each treatment group (n=20 couples) were randomly selected for baseline and immediate post-intervention interviews to explore impact on the food preparer's family. These in-depth interviews with the food preparer and their adult partner were tape-recorded and transcribed verbatim. Two researchers conducted thematic analysis using constant comparison. Family flexibility about food choices was assessed using roles, rules, and power concepts from Family Systems Theory. Interviews at baseline revealed dinner vegetable variety was very limited because food preparers served only what everyone liked (a role expectation) and deferred to male partner and children's narrow vegetable preferences (power). Control couples reported no change in vegetable dinner variety post-intervention. Most experimental couples reported in-home tasting and evaluation was worthwhile and somewhat broadened vegetables served at dinners. But the role expectation of serving only what everyone liked and the practice of honoring powerful family members' vegetable preferences remained major barriers to change. Copyright © 2012 Academy of Nutrition and Dietetics. Published by Elsevier Inc. All rights reserved.

Social influences on morphine conditioned place preference in adolescent mice.

PubMed

Cole, Shannon L; Hofford, Rebecca S; Evert, Daniel J; Wellman, Paul J; Eitan, Shoshana

2013-03-01

Social/peer influences are among the strongest predictors of adolescent drug use. However, this important subject does not get much attention in pre-clinical studies. We recently observed that exposure to different social partners modulates morphine locomotor sensitization. Sensitivity to the hyper-locomotor response of drugs of abuse is a predictor of sensitivity to other drug-induced behaviors. Thus, this study examined how exposure to different social partners affected the rewarding properties of morphine. All animals were group-housed four per cage in one of two conditions referred to as 'only' and 'cage-mates'. In the mixed treatment condition, morphine- and saline-treated mice were housed together. These groups are referred to as 'morphine cage-mates' and 'saline cage-mates', respectively. In the separated treatment conditions, all mice in the cage received morphine (i.e. 'morphine only') or saline (i.e. 'saline only'), and cages were visually separated from each other. All animals were subsequently individually tested for the acquisition of morphine conditioned place preference (CPP) following one conditioning session with 10, 20 or 40 mg/kg morphine or saline. As expected, one conditioning session established morphine CPP in the morphine only animals, but not in the saline only animals. Notably, morphine CPP was not acquired by the morphine cage-mate animals. Additionally, 40 mg/kg morphine was sufficient to establish morphine CPP in the saline cage-mate animals. These results indicate that social environment has an effect on the rewarding properties of morphine. It suggests that exposure to different peers can alter the abuse potential of opioids and potentially other illicit drugs. © 2012 The Authors, Addiction Biology © 2012 Society for the Study of Addiction.

Observer age and the social transmission of attractiveness in humans: Younger women are more influenced by the choices of popular others than older women.

PubMed

Little, Anthony C; Caldwell, Christine A; Jones, Benedict C; DeBruine, Lisa M

2015-08-01

Being paired with an attractive partner increases perceptual judgements of attractiveness in humans. We tested experimentally for prestige bias, whereby individuals follow the choices of prestigious others. Women rated the attractiveness of photographs of target males which were paired with either popular or less popular model female partners. We found that pairing a photo of a man with a woman presented as his partner positively influenced the attractiveness of the man when the woman was presented as more popular (Experiment 1). Further, this effect was stronger in younger participants compared to older participants (Experiment 1). Reversing the target and model such that women were asked to rate women paired with popular and less popular men revealed no effect of model popularity and this effect was unrelated to participant age (Experiment 2). An additional experiment confirmed that participant age and not stimulus age primarily influenced the tendency to follow others' preferences in Experiment 1 (Experiment 3). We also confirmed that our manipulations of popularity lead to variation in rated prestige (Experiment 4). These results suggest a sophisticated model-based bias in social learning whereby individuals are most influenced by the choices of those who have high popularity/prestige. Furthermore, older individuals moderate their use of such social information and so this form of social learning appears strongest in younger women. © 2014 The British Psychological Society.

Men still value physical attractiveness in a long-term mate more than women: rejoinder to Eastwick, Neff, Finkel, Luchies, and Hunt (2014).

PubMed

Meltzer, Andrea L; McNulty, James K; Jackson, Grace L; Karney, Benjamin R

2014-03-01

Sexual selection theory and parental investment theory suggest that partner physical attractiveness should more strongly affect men's relationship outcomes than women's relationship outcomes. Nevertheless, the contextual nature of this prediction makes serious methodological demands on studies designed to evaluate it. Given these theories suggest that men value observable aspects of partner attractiveness more than women do only in the context of long-term and reproductively viable relationships, they require that studies testing this sex difference involve (a) participants in long-term relationships, (b) women of child-bearing age, and (c) measures of physical attractiveness that assess observable aspects of appearance. In our original article (Meltzer, McNulty, Jackson, & Karney, 2014), we applied 7 methodological standards that allowed us to meet these 3 criteria and demonstrated that partner physical attractiveness is more strongly associated with men's long-term relationship satisfaction than women's long-term relationship satisfaction. Eastwick, Neff, Finkel, Luchies, and Hunt (2014), in contrast, described an unfocused meta-analysis, a refocused meta-analysis, and new data that all failed to meet these criteria and, not surprisingly, failed to demonstrate such a sex difference. We continue to believe that men value physical attractiveness more than women do, that such preferences have implications for their evaluations of long-term relationships, and that studies properly calibrated to detect such differences will do so. (PsycINFO Database Record (c) 2014 APA, all rights reserved).

[The reproductive correlates of social hierarchy in laboratory male mice].

PubMed

Osadchuk, L B; Salomacheva, I N; Bragin, A V; Osadchuk, A V

2007-01-01

In laboratory male mice the effects of social hierarchy on hormonal and spermatogenic testicular function, accessory organs and testicular weights, sexual behaviour have been investigated using an experimental model of social hierarchy, which is characterised by a minimal size (two male mice) and 5 days period of social interactions. The social rank of the partners was detected by asymmetry in aggressive behaviour. Using the experimental condition, when the both partners have no preferences for exclusive use of area we demonstrated that there were no rank differences in the number of mounts and testicular testosterone content. Nevertheless a rank asymmetry in the male sniffing behaviour towards a receptive female, weights of the testes, seminal vesicles, epididymes and the number of epididymal sperm was kept up in a stable social group. Social dominance was found to affect negatively on testicular testosterone increase in response to introduction of a receptive female and sexual attractiveness of male to a receptive female in both dominant and subordinate males. The results obtained demonstrate the impact of social hierarchy on reproduction in laboratory male mice, particular in respect of spermatogenesis and the testicular testosterone in response to a receptive female.

75 FR 43929 - National Weather Service (NWS) Strategic Plan, 2011-2020

Federal Register 2010, 2011, 2012, 2013, 2014

2010-07-27

... management, and private sector, research and operations partners. NWS invites comments on the contents of... 18234, Silver Spring, Maryland 20910. E-mail comments to nws.great.ideas@noaa.gov . NWS prefers that... prediction and monitoring. NOAA's commitment to science, service, and stewardship informs society to respond...

Family Perspectives on Integrated Employment for Adults with Intellectual and Developmental Disabilities

ERIC Educational Resources Information Center

Gilson, Carly B.; Carter, Erik W.; Bumble, Jennifer L.; McMillan, Elise D.

2018-01-01

Families are essential partners in efforts to elevate the employment outcomes of adults with intellectual and developmental disabilities (IDD). We examined the employment-related expectations, preferences, and concerns of 673 parents and other family members of adults with IDD. Participants prioritized paid integrated employment over sheltered…

Gender, Lineage, and Fertility-Related Outcomes in Ghana

ERIC Educational Resources Information Center

Takyi, Baffour K.; Nii-Amoo Dodoo, F.

2005-01-01

A growing literature examines the empirical relationship between the joint reproductive preferences of marital partners and reproductive outcomes in Africa. Less explored is how spousal power in decision making may be influenced by lineage type. Using pooled data from Ghana, we investigate how lineage affects gendered reproductive decision…

Ethnicity in the Electronic Age: Looking at the Internet through a Multicultural Lens.

ERIC Educational Resources Information Center

Tseng, Thomas

This research report examines the unique preferences, attitudes, motivations, and practices of ethnic Internet users, particularly African Americans and Hispanic Americans, discussing implications for marketing to U.S. ethnic communities. Data come from field research collected between August-November 2000. Researchers partnered with popular…

77 FR 35387 - Granting of Request for Early Termination of the Waiting Period Under The Premerger Notification...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-06-13

... UnitedHealth Group, Inc.; Preferred Care Partners Holding Corp.; UnitedHealth Group, Inc. 20120790 G Alfa, S.A.B. de C.V.; J.L. French Automotive Castings, Inc.; Alfa, S.A.B. de C.V. 05/17/2012 20120809 G...

Modern contraceptive use among women living with HIV/AIDS at the Korle Bu Teaching Hospital in Ghana.

PubMed

Samba, Ali; Mumuni, Kareem; Adu, Joseph A; Sefogah, Promise E; Kudzi, William; Nartey, Edmund T

2018-04-01

To examine factors influencing contraceptive use among women living with HIV/AIDS. The present cross-sectional study included a randomly selected sample of sexually active females aged 15-60 years who were living with HIV/AIDS and receiving care at the HIV Clinic, Korle Bu Teaching Hospital, Accra, Ghana, between September 1 and November 31, 2016. Data were collected via a structured interviewer-administered questionnaire. Among 202 women who completed the survey, 50 (24.7%) were using contraceptives. Of the women using contraception, 39 (78%) were married and 6 (12%) were cohabiting. Twenty-eight (56%) reported that their primary sexual partners were HIV-positive, 14 (28%) had HIV-negative partners, and 8 (16%) did not know their partner's HIV status. Condoms were used by 42 (84%) women and the majority (41 [82%]) wanted to have more children; almost all (47 [94%]) had received counseling on contraceptive use. Overall, 133 (65.8%) and 45 (22.3%) women reported that they would prefer to share their family planning concerns with a doctor and nurse, respectively, at the HIV clinic. Women living with HIV/AIDS desired more children but preferred to share their family planning concerns with their clinician at the HIV clinic. Integrating HIV care and reproductive health services could help these women achieve childbearing goals safely. © 2018 International Federation of Gynecology and Obstetrics.

Sociodemographic characteristics and attitudes towards motherhood among single women compared with cohabiting women treated with donor semen - a Danish multicenter study.

PubMed

Salomon, Maria; Sylvest, Randi; Hansson, Helena; Nyboe Andersen, Anders; Schmidt, Lone

2015-05-01

To examine sociodemographic characteristics, family backgrounds, reproductive histories, and attitudes towards motherhood in single vs. cohabiting women seeking treatment with donor semen. Baseline data collection in a multicenter cohort study. All nine public fertility clinics in Denmark. In total n = 311 childless women initiating assisted reproduction using donor semen. Self-reported questionnaire responses from n = 184 single women seeking treatment by using donor semen were compared with responses from n = 127 cohabiting women. Sociodemographic characteristics, family backgrounds, reproductive histories, attitudes towards motherhood. Single women were 3.5 years older on average when initiating treatment compared with cohabiting women. No significant differences were found regarding sociodemographic characteristics, previous long-term relationships, previous pregnancies, or attitudes towards motherhood between single women and cohabiting women. The vast majority of single women wanted to achieve parenthood with a partner, 85.8% wished to have a partner in the future, and approximately half of them preferred for a partner to take parental responsibilities. In this study single women seeking treatment with donor semen in the public health system did not differ from cohabiting women, except that they were older. To be a single mother by choice is not their preferred way of parenthood, but a solution they needed to accept. © 2015 Nordic Federation of Societies of Obstetrics and Gynecology.

[Considering housing arrangements in elderly life: factors influencing plans concerning future housing arrangements and preferences in a representative sample of 45+ year olds].

PubMed

Spangenberg, L; Glaesmer, H; Brähler, E; Kersting, A; Strauß, B

2013-04-01

Providing care and support for the elderly is a future challenge. Using regression analysis, a representative population-based sample (n = 1,445) was examined with respect to whether they had considered future housing and which variables influenced their thoughts and preferences. The majority of the sample reported thinking about housing in old age and preferred to stay at home in old age. Thoughts about future housing and housing preferences were predicted by different factors in the age groups analyzed. Thinking about future housing was positively associated with increasing age and depression. Other relevant predictors were gender, living with a partner, images of old age (especially negative ones), and anticipated subjective health. These variables also predicted housing preferences. Thoughts about future living arrangements are widespread, and their importance increases with age. The wishes reported do contrast to a certain extent with reality. Planning future care as well as developing consultation guidelines should address these issues while considering the reported influences.

Uptake of Home-Based Syphilis and Human Immunodeficiency Virus Testing Among Male Partners of Pregnant Women in Western Kenya.

PubMed

Mark, Jennifer; Kinuthia, John; Roxby, Alison C; Krakowiak, Daisy; Osoti, Alfred; Richardson, Barbra A; Gone, Molly Ann; Asila, Victor; Parikh, Saloni; Farquhar, Carey

2017-09-01

Few men are tested for syphilis or human immunodeficiency virus (HIV) during their partner's pregnancy, a high-risk period for HIV and syphilis transmission. Offering home-based rapid testing of syphilis to couples during pregnancy can support prevention efforts to reduce transmission of sexually transmitted diseases and adverse pregnancy outcomes. We assessed men's uptake of paired (separate tests, single blood draw) point-of-care syphilis and HIV tests within a randomized controlled trial of pregnant women who received clinic or home partner HIV testing. We evaluated acceptance of paired HIV-syphilis testing during pregnancy or at 6 months postpartum, and evaluated whether addition of syphilis testing affected the uptake of HIV testing among men. Of 601 women, we were unable to meet 101 male partners, and 180 tested before syphilis tests were available. Paired syphilis and HIV testing was offered at home to 80 men during pregnancy and to 230 men postpartum. For syphilis, 93% of men agreed to test during pregnancy and 98% agreed postpartum. For paired syphilis and HIV testing, 91% of men tested for both during pregnancy and 96% tested postpartum. Before syphilis test introduction, 96% of men accepted HIV testing, compared with 95% of men who accepted HIV testing when paired testing was offered. Uptake of syphilis and HIV testing was high among male partners offered couple testing at home. Introducing syphilis testing did not adversely affect HIV testing among men. Point-of-care diagnostics outside facilities can increase testing of male partners who rarely accompany women to antenatal clinics.

Chimpanzees are indifferent to the welfare of unrelated group members.

PubMed

Silk, Joan B; Brosnan, Sarah F; Vonk, Jennifer; Henrich, Joseph; Povinelli, Daniel J; Richardson, Amanda S; Lambeth, Susan P; Mascaro, Jenny; Schapiro, Steven J

2005-10-27

Humans are an unusually prosocial species-we vote, give blood, recycle, give tithes and punish violators of social norms. Experimental evidence indicates that people willingly incur costs to help strangers in anonymous one-shot interactions, and that altruistic behaviour is motivated, at least in part, by empathy and concern for the welfare of others (hereafter referred to as other-regarding preferences). In contrast, cooperative behaviour in non-human primates is mainly limited to kin and reciprocating partners, and is virtually never extended to unfamiliar individuals. Here we present experimental tests of the existence of other-regarding preferences in non-human primates, and show that chimpanzees (Pan troglodytes) do not take advantage of opportunities to deliver benefits to familiar individuals at no material cost to themselves, suggesting that chimpanzee behaviour is not motivated by other-regarding preferences. Chimpanzees are among the primates most likely to demonstrate prosocial behaviours. They participate in a variety of collective activities, including territorial patrols, coalitionary aggression, cooperative hunting, food sharing and joint mate guarding. Consolation of victims of aggression and anecdotal accounts of solicitous treatment of injured individuals suggest that chimpanzees may feel empathy. Chimpanzees sometimes reject exchanges in which they receive less valuable rewards than others, which may be one element of a 'sense of fairness', but there is no evidence that they are averse to interactions in which they benefit more than others.

Preferences for masculinity in male bodies change across the menstrual cycle.

PubMed

Little, Anthony C; Jones, Benedict C; Burriss, Robert P

2007-05-01

In human females cyclic shifts in preference have been documented for odour and physical and behavioral male traits. Women prefer the smell of dominant males, more masculine male faces and men behaving more dominantly when at peak fertility than at other times in their menstrual cycle. Here we examine variation in preferences for body sexual dimorphism. Across two studies, both between- and within-participant, we show that women prefer greater masculinity in male bodies at times when their fertility is likely highest, in the follicular phase of their cycle. Shifts were seen when rating for a short-term but not when rating for a long-term relationship. In line with studies showing similar effects for facial sexual dimorphism, we also show that women prefer greater masculinity when they think themselves attractive than when they think themselves less attractive. These results indicate that women's preferences for sexual dimorphism in male bodies follow a similar pattern as found for sexual dimorphism and dominance in other domains and such differences in preference may serve a similar function. Cyclic preferences could influence women to select partners when most likely to become pregnant that possess traits that may be most likely to maximize their offspring's quality via attraction to masculinity or serve to help acquire investment via attraction to femininity.

Confirming Preferences or Collecting Data? Information Search Strategies and Romantic Partner Selection

PubMed Central

Hennessy, Michael; Fishbein, Martin; Curtis, Brenda; Barrett, Daniel W.

2010-01-01

This article investigates two kinds of information search strategies in the context of selecting romantic partners. Confirmatory searching occurs when people ask for more information about a romantic partner in order to validate or confirm their assessment. Balanced searches are characterized by a search for risk information for partners rated as attractive and for attractiveness information about partners rated as risky in order to attain a more complete evaluation. A factorial survey computer program randomly constructed 5 types of partner descriptions and college-age respondents evaluated nine descriptions in terms of both health risk and romantic attractiveness outcomes. The results show little evidence of balanced search strategies: for all vignette types the respondents searched for attractiveness information. Regression analysis of the search outcomes showed no difference between males and females in the desire for attractiveness or risk information, the amount of additional information desired, or the proportion of descriptions for which more information was desired. However, an attractive physical appearance did increase the amount of additional information desired and the proportion of vignettes for which more information was desired. The results were generally inconsistent with a balanced search hypothesis; a better characterization of the respondents' strategy might be “confirmatory bias.” PMID:18350465

'They can't report abuse, they can't move out. They are at the mercy of these men': exploring connections between intimate partner violence, gender and HIV in South African clinical settings.

PubMed

Sprague, Courtenay; Hatcher, Abigail M; Woollett, Nataly; Sommers, Theresa; Black, Vivian

2016-01-01

This qualitative study captured South African female health provider perspectives of intimate partner violence in female patients, gender norms and consequences for patients' health. Findings indicated female patients' health behaviours were predicated on sociocultural norms of submission to men's authority and economic dependence on their partners. Respondents described how men's preferences and health decision-making in clinics affected their patients' health. Adverse gender norms and gender inequalities affected women's opportunities to be healthy, contributing to HIV risk and undermining effective HIV management in this context. Some providers, seeking to deliver a standard of quality healthcare to their female patients, demonstrated a willingness to challenge patriarchal gender relations. Findings enhance understanding of how socially-sanctioned gender norms, intimate partner violence and HIV are synergistic, also reaffirming the need for integrated HIV-intimate partner violence responses in multi-sector national strategic plans. Health providers' intimate knowledge of the lived experiences of female patients with intimate partner violence and/or HIV deepens understanding of how adverse gender norms generate health risks for women in ways that may inform policy and clinical practice in South Africa and other high-HIV prevalence settings.

Performing purity: reproductive decision-making and implications for a community under threat of zika in iquitos, Peru.

PubMed

Guerra-Reyes, Lucia; Iguiñiz-Romero, Ruth A

2018-06-11

The long-term management and prevention of Zika virus requires understanding of reproductive and sexual health behaviours, including mechanisms of partnered decision-making. In this article, we report on a qualitative study conducted before the arrival of Zika in Iquitos, Peru. We assessed existing patterns of reproductive decision-making among partnered men and women in a community under threat of Zika and discuss how these may impact Zika prevention in the long-term. We used a rapid qualitative assessment methodology, including in-depth semi-structured interviews with partnered women (28) and men (21). Deeply unequal gender role expectations limit discussion of reproductive decisions until after a first child is born. Women needed to perform a domestic 'of-the-house' role to be considered suitable partners, leading them to hide their knowledge of sexual and reproductive health. Condoms symbolise risk and are unused with partners in committed relationships. A shared perception that men must take care of female partner's sexual health, translates into male sexual and reproductive preferences overcoming female desires. Existing decision-making patterns lead to an increased risk of Zika exposure. Long-term response should expand Zika virus information and preventive messages to men and young people, in addition to engaging with broader societal challenges to gender inequity.

Covert use, vaginal lubrication, and sexual pleasure: a qualitative study of urban U.S. Women in a vaginal microbicide clinical trial.

PubMed

Hoffman, Susie; Morrow, Kate M; Mantell, Joanne E; Rosen, Rochelle K; Carballo-Diéguez, Alex; Gai, Fang

2010-06-01

Using data from a U.S. clinical safety trial of tenofovir gel, a candidate microbicide, we explored the intersection of sexual pleasure and vaginal lubrication to understand whether and under what circumstances women would use a microbicide gel covertly with primary partners. This study question emerged from acceptability research in diverse settings showing that even though future microbicides are extolled as a disease prevention method that women could use without disclosing to their partners, many women assert they would inform their primary partner. Participants (N = 84), stratified by HIV-status and sexual activity (active vs. abstinent), applied the gel intra-vaginally for 14 days. At completion, quantitative acceptability data were obtained via questionnaire (N = 79) and qualitative data via small group discussions (N = 15 groups, 40 women). Quantitatively, 71% preferred a microbicide that could not be noticed by a sex partner and 86% experienced greater vaginal lubrication with daily use. Based on our analysis of the qualitative data, we suggest that women's perception that their primary partners would notice a microbicide gel is a more important reason for their caution regarding covert use than may previously have been recognized. Our findings also showed that women's assessment of the possibility of discreet, if not covert, use was strongly related to their perception of how a microbicide's added vaginal lubrication would influence their own and their partner's pleasure, as well as their partner's experience of his sexual performance. A microbicide that increases pleasure for both partners could potentially be used without engendering opposition from primary partners.

A Qualitative Study of Means to Improve Partner Notification After an HIV Diagnosis Among Men Who Have Sex with Men in Australia.

PubMed

Tomnay, Jane E; Hulme-Chambers, Alana; Bilardi, Jade; Fairley, Christopher K; Huffam, Sarah; Chen, Marcus Y

2017-06-01

Improved partner notification (PN) after HIV diagnosis could help control HIV among men who have sex with men (MSM). However, there is little evidence exploring what this experience is like for Australian MSM and how achievable it is in the era of the Internet and smartphones. Fifteen of 39 invited MSM recently diagnosed with HIV undertook a semistructured interview about PN. Interviews were thematically analyzed using a combined deductive/inductive approach. Three main themes arose: fear of PN and HIV disclosure, partners' unexpected reactions, and the need for more patient support. MSM found PN difficult and uncomfortable and described fear about potential repercussions of PN; however, they felt it was the right thing to do. Regular partners were more likely to be notified, and in person, because of the availability of contact information but more notably because of a sense of moral responsibility. Men commonly had few contact details for casual partners and preferred PN strategies that allowed them to remain anonymous, largely reflecting the reasons for and ways in which they met casual partners: online or through apps and predominantly for once-off, anonymous sex. Most described unexpected positive responses from partners who were contacted personally by the men. Our study also showed that participants required professional support to carry out PN, especially with casual partners, as well as support around understanding the implications of and treatments relating to being HIV positive. PN could be improved by offering more options that allow the index patient to remain anonymous, particularly when notifying casual partners.

Design and process evaluation of an informative website tailored to breast cancer survivors' and intimate partners' post-treatment care needs.

PubMed

Pauwels, Evelyn; Van Hoof, Elke; Charlier, Caroline; Lechner, Lilian; De Bourdeaudhuij, Ilse

2012-10-03

On-line provision of information during the transition phase after treatment carries great promise in meeting shortcomings in post-treatment care for breast cancer survivors and their partners. The objectives of this study are to describe the development and process evaluation of a tailored informative website and to assess which characteristics of survivors and partners, participating in the feasibility study, are related to visiting the website. The development process included quantitative and qualitative assessments of survivors' and partners' care needs and preferences. Participants' use and evaluation of the website were explored by conducting baseline and post-measurements. During the intervening 10-12 weeks 57 survivors and 28 partners were granted access to the website. Fifty-seven percent (n=21) of survivors who took part in the post-measurement indicated that they had visited the website. Compared to non-visitors (n=16), they were more likely to have a partner and a higher income, reported higher levels of self-esteem and had completed treatment for a longer period of time. Partners who consulted the on-line information (42%, n=8) were younger and reported lower levels of social support compared to partners who did not visit the website (n=11). Visitors generally evaluated the content and lay-out positively, yet some believed the information was incomplete and impersonal. The website reached only about half of survivors and partners, yet was mostly well-received. Besides other ways of providing information and support, a website containing clear-cut and tailored information could be a useful tool in post-treatment care provision.

What do You Need to Get Male Partners of Pregnant Women Tested for HIV in Resource Limited Settings? The Baby Shower Cluster Randomized Trial.

PubMed

Ezeanolue, Echezona E; Obiefune, Michael C; Yang, Wei; Ezeanolue, Chinenye O; Pharr, Jennifer; Osuji, Alice; Ogidi, Amaka G; Hunt, Aaron T; Patel, Dina; Ogedegbe, Gbenga; Ehiri, John E

2017-02-01

Male partner involvement has the potential to increase uptake of interventions to prevent mother-to-child transmission of HIV (PMTCT). Finding cultural appropriate strategies to promote male partner involvement in PMTCT programs remains an abiding public health challenge. We assessed whether a congregation-based intervention, the Healthy Beginning Initiative (HBI), would lead to increased uptake of HIV testing among male partners of pregnant women during pregnancy. A cluster-randomized controlled trial of forty churches in Southeastern Nigeria randomly assigned to either the HBI (intervention group; IG) or standard of care referral to a health facility (control group; CG) was conducted. Participants in the IG received education and were offered onsite HIV testing. Overall, 2498 male partners enrolled and participated, a participation rate of 88.9%. Results showed that male partners in the IG were 12 times more likely to have had an HIV test compared to male partners of pregnant women in the CG (CG = 37.71% vs. IG = 84.00%; adjusted odds ratio = 11.9; p < .01). Culturally appropriate and community-based interventions can be effective in increasing HIV testing and counseling among male partners of pregnant women.

Advantages of wordless instructions on how to complete a fecal immunochemical test: lessons from patient advisory council members of a federally qualified health center.

PubMed

Coronado, Gloria D; Sanchez, Jen; Petrik, Amanda; Kapka, Tanya; DeVoe, Jen; Green, Beverly

2014-03-01

Some patients face difficulty understanding instructions for completing the fecal immunochemical test (FIT), a self-administered test to screen for colorectal cancer. We sought to develop and test low-literacy instructions for completing the FIT. Working in partnership with a Latino-serving Federally Qualified Health Center (FQHC) in the Portland Metro area, we developed and tested low-literacy instructions for completing the FIT; the instructions contained seven words (mail within 3 days; Devolver dentro de 3 dias). We conducted focus groups of Spanish-speaking patients on the advisory council of our partnering FQHC organization, and we gathered feedback from the project's advisory board members and clinic staff. We mailed a FIT kit to each patient, along with either (a) instructions written in English and Spanish, consisting of 415 words; or (b) low-literacy "wordless" instructions. We asked patients to complete the test before providing feedback. Our qualitative assessment showed that the wordless instructions were preferred over instructions consisting of words. Wordless instructions might aid efforts to raise the rates of colorectal cancer screening among low-literacy and non-English-speaking populations.

Rethinking autonomy in the context of prenatal screening decision-making.

PubMed

García, Elisa; Timmermans, Danielle R M; van Leeuwen, Evert

2008-02-01

Answering the question: Does the offer of prenatal screening impede women in making autonomous choices? Semi-structured interviews with 59 women to whom a prenatal screening test was offered and who were in the process of taking a decision. Women described the offer as confronting but expressed a positive attitude towards screening and considered the offer as an opportunity for making up their minds about testing. Participants stated that they took decisions freely to follow their individual perspectives. Nevertheless, they preferred to share the responsibility of taking decisions, and its consequences for other family members, with their partner and close persons. The active offer of an unsolicited prenatal test need not be considered as an impediment for making an autonomous choice. The moral significance of prenatal testing is inseparably bound with the social context in which it is practiced. Influence from other persons and emotional reactions due to the test offer can be interpreted as supportive for making a choice. In clinical practice, testing should be timely offered in order to give women the opportunity of discussing their views with significant others. Caregivers should care for the emotions experienced by women so as to help them decide according to their values.

Comparing Online with Face-to-Face HELPP Intervention in Women Experiencing Intimate Partner Violence.

PubMed

Constantino, Rose E; Braxter, Betty; Ren, Dianxu; Burroughs, Joseph David; Doswell, Willa Marlene; Wu, Linden; Hwang, Juhae Grace; Klem, Mary Lou; Joshi, James B D; Greene, W Brian

2015-06-01

Intimate partner violence (IPV) is a public health problem. The purpose of this study was to compare the effectiveness of the HELPP (Health, Education on Safety, and Legal Support and Resources in IPV Participant Preferred) intervention among IPV survivors. A sequential, transformative mixed-methods design was used. Participants were randomly assigned to one of three study groups: Online (ONL), Face-to-Face (FTF), and Waitlist Control (WLC). The HELPP intervention was offered to 32 adult female participants who were 45.2% Asian, 32.3% White, and 22.5% Black. Outcome measures were anxiety, depression, anger, personal, and social support. In total, 64% (n  =  20) of the participants reported having experienced IPV before the age of 18. The anger mean score pre-test to post-test difference was significant for ONL (p < 0.001) and WLC (p  =  0.01). The personal and social support pre-test to post-test mean score differences were significant for ONL (p < 0.001; p < 0.001) and WLC (p  =  0.01; p  =  0.006), respectively. The HELPP intervention (1) decreased anxiety, depression, anger, and (2) increased personal and social support in the ONL group. The HELPP information and intervention was shown to be feasible, acceptable, and effective among IPV survivors compared with participants in the WLC group. The WLC participants displayed (1) increased levels of anxiety, depression, and anger and (2) decreased levels of personal and social support, post-intervention. Further research could be conducted to determine if e-mail alone or e-mail plus mobile devices are more useful modes of delivering interventions.

Heterosexual Partnerships and the Need for HIV Prevention and Testing for Men Who Have Sex With Men and Women in China: A Qualitative Study.

PubMed

Wang, Sijia; Song, Dandan; Huang, Wen; He, Huan; Wang, Min; Manning, David; Zaller, Nickolas; Zhang, Hongbo; Operario, Don

2015-04-01

Previous studies have reported that approximately 30% of men who have sex with men (MSM) in China have concurrent female partners. Men who have sex with men and women (MSMW) might "bridge" HIV transmission to their female sex partners. This study aimed to explore (a) motivations for why MSMW in China engage in relationships and sexual behaviors with female partners; (b) patterns of sexual behaviors and condom use between MSMW and their female partners; and (c) barriers to and strategies for encouraging MSMW and their female partners to undergo HIV testing. The authors conducted in-depth interviews with 30 MSMW in two urban cities in China, Guangzhou and Chengdu, and used thematic analysis methods to code and interpret the data. MSMW described family, social, and workplace pressures to have a female partner, and expressed futility about their ability to form stable same-sex relationships. Although participants reported concern about the risk of personally acquiring and transmitting HIV or other sexually transmitted infections (STIs) to their female partners, they described the challenges to using condoms with female partners. HIV-positive participants described how stigma restricted their ability to disclose their HIV status to female partners, and HIV-negative participants displayed less immediate concern about the need for female partners to undergo HIV testing. Participants described a range of possible strategies to encourage HIV testing among female partners. These findings highlight the urgent need for HIV risk reduction and testing interventions for Chinese MSMW in the context of heterosexual partnerships, and they also underscore the additional need for privacy and cultural sensitivity when designing future studies.