Born and raised this way
Toni Schmader et al.
Basic and Applied Social Psychology, January/February 2013, Pages 141-149
Abstract:
In an effort to identify effective strategies for reducing prejudice, this research tested whether stigmatized individuals can evoke a common identity to deflect discrimination. In an initial survey, gay/lesbian/bisexual participants reported a preference for evoking common identity in intergroup interactions. In two experiments, straight male perceivers in a managerial role-playing paradigm were more likely to select a gay man for an interview if he had primed a common identity. Evoking a common identity did not similarly benefit straight candidates. Findings suggest that integrating prejudice reduction and persuasion research can identify strategies that empower targets to effectively cope with prejudice.
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Human social stratification and hypergyny: Toward an understanding of male homosexual preference
Julien Barthes, Bernard Godelle & Michel Raymond
Evolution and Human Behavior, forthcoming
Abstract:
Male homosexual preference (MHP) challenges evolutionary thinking because the preference for male-male relationships is heritable, implies a fertility cost (lower offspring number), and is relatively frequent in some societies (2%-6% in Western countries) for a costly trait. Proximate explanations include the hypothesis of a "sexually antagonistic factor" in which a trait that increases fertility in females also promotes the emergence of MHP. Because no animal species is known to display consistent MHP in the wild (only transient and contextual homosexual behavior has been described), additional human-specific features must contribute to the maintenance of MHP in human populations. We built a theoretical model that revealed that, in a stratified society, a relatively high frequency of MHP could be maintained as a result of the social ascension of females signaling high fertility (hypergyny). Additional computer simulations confirmed that this result applies to populations with various numbers of classes, conditions of demographic regulation, and mating systems. The prediction that MHP is more prevalent in stratified societies was significantly supported in a sample of 48 societies for which the presence or absence of MHP has been anthropologically documented. More generally, any traits associated with up-migration are likely to be selected for in a stratified society and will be maintained by frequency dependence even if they induce a pleiotropic cost, such as MHP. These results offer a new perspective for understanding seemingly paradoxical traits in human populations.
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Do Popular Votes on Rights Create Animosity Toward Minorities?
Todd Donovan & Caroline Tolbert
Political Research Quarterly, forthcoming
Abstract:
We examine whether votes on minority rights make the public less sympathetic to the targeted group. Panel data are used to test whether votes on marriage changed public attitudes about gays and lesbians. We propose the marriage debate had a stigmatizing effect on attitudes about gays and lesbians in states where marriage was on the ballot. Results reveal a conditional relationship. Religious people in states where marriage was voted on had lower affect for gays and lesbians after the campaign. Independent of policy outcomes, subjecting a minority group to public judgment about rights may promote animus toward the group.
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Familiarity increases the accuracy of categorizing male sexual orientation
Marco Brambilla, Paolo Riva & Nicholas Rule
Personality and Individual Differences, forthcoming
Abstract:
Although individual differences are known to influence numerous aspects of social perception, such as person memory and individuation, little is known about how such variations may affect social categorization. Extending prior research, the present study tested one potential moderator: familiarity with group members. Specifically, straight participants (n = 84) reported their real-life experiences with gay men and categorized faces as gay or straight. Results showed that participants who reported greater familiarity with gay men were significantly more sensitive, or accurate, in judging the sexual orientations of men from their faces. These results are discussed in terms of their theoretical implications for social perception and future research directions are outlined.
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Salivary testosterone is related to self-selected training load in elite female athletes
Christian Cook & Martyn Beaven
Physiology & Behavior, forthcoming
Background: Testosterone has been related to improved acute neuromuscular performance in athletic populations. It is our contention that testosterone may also contribute to improved volitional motivation and, when monitored longitudinally, may provide one proxy marker for readiness to perform.
Methods: Twelve female netball players provided saliva samples prior to five standardized training sessions in which they completed a maximal-distance medicine ball throw, and then 3 sets of bench press and then back squat using a self-selected load perceived to equal a 3-repetition maximum load. Additional repetitions were encouraged when possible and total voluntary workload was calculated from the product of the load lifted and repetitions performed.
Results: Relative salivary testosterone levels as a group were correlated with bench press (r = 0.8399; p = 0.0007) and squat (r = 0.6703; p = 0.0171) self-selected workload, as well as maximal medicine ball throw performance (r = 0.7062; p = 0.0103).
Conclusions: Individual salivary testosterone, when viewed relatively over time, demonstrated strong relationships with self-selected workloads during an in-season training period in female netball players. As such, daily variations in testosterone may provide information regarding voluntary training motivation and readiness to perform in elite athletic populations. Psychological and behavioral aspects of testosterone may have the potential to enhance training adaptation by complementing the known anabolic and permissive properties of testosterone.
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John Pachankis & Mark Hatzenbuehler
Basic and Applied Social Psychology, March/April 2013, Pages 176-190
Abstract:
Young sexual minority men might cope with early stigma by strongly investing in achievement-related success. Sexual minority men (n = 136) reported deriving their self-worth from academics (d = 0.33), appearance (d = 0.33), and competition (d = 0.35) more so than heterosexual men (n = 56). Length of early sexual orientation concealment predicted investment in these domains (β = 0.19, 0.22, 0.24) and an objective measure of stigma predicted the degree to which young sexual minority men sought self-worth through competition (β = 0.26). A nine-day experience sampling approach confirmed that investment in achievement-related domains exacts negative health consequences for young sexual minority men.
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Allison Shaw
Personality and Individual Differences, July 2013, Pages 19-23
Abstract:
The ratio of the lengths of the second and fourth digits of hands (2D:4D) seems to vary as a function of systematic differences in prenatal androgen exposure (Hönekopp & Watson, 2010). The 2D:4D ratio has been shown to be related to a variety of personality attributes. This study predicted that 2D:4D would covary with scores on the emotionality dimension of the six-facet HEXACO personality assessment, due to emotionality's relationship with neural reactivity systems controlled by the amygdala (Hines, Allen, & Gorski, 1992), but that 2D:4D would relate to no other facet. Consistent with hypotheses, data showed that men had smaller ratios than women on both the right, t(405) = 2.84, p < .05, d = .28, and left hands, t(405) = 4.51, p < .05, d = .45, and the relationship between 2D:4D and emotionality was outside of sampling error of zero, r = .18, p < .001. Additionally, 2D:4D was unrelated to the remaining HEXACO facets. Findings suggest that prenatal testosterone exposure has an organizing effect on personality traits.
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David Edwards & Kathleen Casto
Hormones and Behavior, forthcoming
Abstract:
Recent research suggests that testosterone and cortisol jointly regulate dominance motivation and, perhaps, the status relationships that are affected by it. For this article, the results of six different studies of women's intercollegiate athletic competition were combined to give a sample size of almost ninety women for whom we had before- and after-competition values for salivary cortisol and testosterone for at least one and sometimes two competitions. For many of these women, we had surveys that allowed us to assess their status with teammates. In no matter what sport (soccer, softball, volleyball, and tennis) levels of salivary cortisol and testosterone increased when women participated in athletic competition. Salivary levels of C and T appear to rise in parallel during competition and increases in levels of one hormone are significantly related to increases in the other. Salivary levels of these hormones typically decreased for teammates who did not play but watched the competition from the sidelines. For women who played in two competitions, individual differences in the positive effect of competition on cortisol and testosterone were conserved from one competition to the next, affirming the personal consistency of endocrine responses to competition. Status with teammates was positively related to before-competition levels of testosterone, but only for women with relatively low before-competition levels of cortisol. This result provides novel support for the "dual hormone hypothesis" as it relates to predicting social status in women's athletic teams - natural social groups of individuals who know each other and whose social hierarchy has evolved over the course of practice and play for at least one and, in some cases, several years of intercollegiate athletic competition.
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Soo Hong Chew, Richard Ebstein & Songfa Zhong
Journal of Economic Behavior & Organization, forthcoming
Abstract:
Combining the methodologies of experimental economics and molecular genetics, we report a genetic association between sex-hormone genes and ultimatum game (UG) behavior in a discovery sample from China and a replication sample from Israel. The androgen receptor gene is found to be associated with UG responder behavior for male but not female subjects in the Chinese population, but this finding is not replicated in the Israeli sample. The estrogen receptor β gene is significantly associated with female UG responder behavior but not for male subjects in the Chinese sample. This finding is marginally replicated in the Israeli sample. Overall, our findings provide suggestive evidence on a gender specific relationship between sex-hormone genes and UG responder behavior, and can contribute to a deeper understanding of gender differences in fairness preference at the level of molecular genetics.
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Taveeshi Gupta et al.
Journal of Research on Adolescence, March 2013, Pages 57-68
Abstract:
This 3-year, longitudinal analysis examined the psychological and social correlates of adhering to gender-typed behaviors in friendships among boys during middle school in United States (N = 446, Mage = 11.37 years) and in China (N = 368, Mage = 12.20 years). Results indicated that boys did not differ by nationality in the mean levels or in the increase over time in adherence to gender-typed behaviors. Furthermore, adherence over time was associated with higher depressive symptoms, lower self-esteem, and lower friendship quality for boys in both countries. However, the associations between gender-typed behaviors and friendship quality and depressive symptoms were stronger for boys in the United States. Our study suggests that gender-typed behaviors play an important role in the well-being of youth in different parts of the world.
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Homosexuality as a Consequence of Epigenetically Canalized Sexual Development
William Rice, Urban Friberg & Sergey Gavrilets
Quarterly Review of Biology, December 2012, Pages 343-368
Abstract:
Male and female homosexuality have substantial prevalence in humans. Pedigree and twin studies indicate that homosexuality has substantial heritability in both sexes, yet concordance between identical twins is low and molecular studies have failed to find associated DNA markers. This paradoxical pattern calls for an explanation. We use published data on fetal androgen signaling and gene regulation via nongenetic changes in DNA packaging (epigenetics) to develop a new model for homosexuality. It is well established that fetal androgen signaling strongly influences sexual development. We show that an unappreciated feature of this process is reduced androgen sensitivity in XX fetuses and enhanced sensitivity in XY fetuses, and that this difference is most feasibly caused by numerous sex-specific epigenetic modifications ("epi-marks") originating in embryonic stem cells. These epi-marks buffer XX fetuses from masculinization due to excess fetal androgen exposure and similarly buffer XY fetuses from androgen underexposure. Extant data indicates that individual epi-marks influence some but not other sexually dimorphic traits, vary in strength across individuals, and are produced during ontogeny and erased between generations. Those that escape erasure will steer development of the sexual phenotypes they influence in a gonad-discordant direction in opposite sex offspring, mosaically feminizing XY offspring and masculinizing XX offspring. Such sex-specific epi-marks are sexually antagonistic (SA-epi-marks) because they canalize sexual development in the parent that produced them, but contribute to gonad-trait discordances in opposite-sex offspring when unerased. In this model, homosexuality occurs when stronger-than-average SA-epi-marks (influencing sexual preference) from an opposite-sex parent escape erasure and are then paired with a weaker-than-average de novo sex-specific epi-marks produced in opposite-sex offspring. Our model predicts that homosexuality is part of a wider phenomenon in which recently evolved androgen-influenced traits commonly display gonad-trait discordances at substantial frequency, and that the molecular feature underlying most homosexuality is not DNA polymorphism(s), but epi-marks that evolved to canalize sexual dimorphic development that sometimes carryover across generations and contribute to gonad-trait discordances in opposite-sex descendants.
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Robert-Paul Juster et al.
Psychosomatic Medicine, February-March 2013, Pages 103-116
Objectives: Lesbian, gay, and bisexual (LGB) individuals - particularly those who have not disclosed their sexual orientation - are believed to experience increased chronic stress in comparison with heterosexuals. This interdisciplinary study assessed whether psychiatric symptoms (self-rated anxiety, depression, and burnout), stress hormone profiles (diurnal cortisol), and physiological dysregulations (allostatic load [AL]) would differ for a) LGBs versus heterosexuals and b) disclosed LGBs versus nondisclosed LGBs.
Methods: The study included 87 healthy participants (mean [SD] age = 24.6 [0.6] years; LGB n = 46, 43% women; and heterosexual n = 41, 49% women). Diurnal cortisol sampled at five time points was averaged for 2 days. AL indices were based on an algorithm incorporating 21 biomarkers representing neuroendocrine, immune/inflammatory, metabolic, and cardiovascular functioning. Psychological measures were assessed with well-validated questionnaires.
Results: Between-group results revealed no significant differences in symptoms of anxiety and burnout, nor among diurnal cortisol levels between sexual orientations. By contrast, gay/bisexual men unexpectedly had lower depressive symptoms (p = .003) and AL levels (p = .043) compared with heterosexual men. Within-group results revealed that disclosed LGBs had fewer psychiatric symptoms (p values < 0.01) and lower cortisol levels +30 minutes upon awakening (p = .004) compared with nondisclosed LGBs. Disclosure was not significantly related to AL levels.
Conclusions: LGBs did not manifest more stress-related problems than did heterosexuals. Life transitions like disclosing to one's family and friends may be protective against psychopathologies and hyperactive cortisol awakening responses. Our novel findings underline the roles disclosure processes have on positive health and well-being for sexual minorities.
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Emily Barrett et al.
Physiology & Behavior, 10 April 2013, Pages 14-20
Abstract:
In animal models, prenatal stress programs reproductive development in the resulting offspring, however little is known about effects in humans. Anogenital distance (AGD) is a commonly used, sexually dimorphic biomarker of prenatal androgen exposure in many species. In rodents, prenatally stressed males have shorter AGD than controls (suggesting lower prenatal androgen exposure), whereas prenatally stressed females have longer AGD than controls (suggesting greater prenatal androgen exposure). Our objective was to investigate the relationship between stressful life events in pregnancy and infant AGD. In a prospective cohort study, pregnant women and their partners reported exposure to stressful life events during pregnancy. Pregnancies in which the couple reported 4 + life events were considered highly stressed. After birth (average 16.5 months), trained examiners measured AGD in the infants (137 males, 136 females). After adjusting for age, body size and other covariates, females born to couples reporting high stress had significantly longer (i.e. more masculine) AGD than females born to couples reporting low stress (p = 0.015). Among males, high stress was weakly, but not significantly, associated with shorter AGD. Our results suggest prenatal stress may masculinize some aspects of female reproductive development in humans. More sensitive measures of prenatal stress and additional measures of reproductive development are needed to better understand these relationships and clarify mechanisms.
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Michelle Treleaven et al.
Journal of Research in Personality, forthcoming
Abstract:
Genetic males may receive androgen deprivation therapy for reasons ranging from sexual reassignment to treating prostate cancer. We investigated the relationship of androgen deprivation to personality for voluntarily castrated males in a large-scale online survey. Based on the historical social positions of androgen-deprived males and contemporary research on testosterone, we predicted that modern day androgen-deprived males (n=122) would differ on several axes of the Big Five Factor Personality Inventory compared to eugonadal controls (n=1229). Though not statistically significant, an increase in agreeability for the androgen-deprived group was observed. The role of estrogen on the personality of castrated males was also explored through androgen-deprived participants taking supplemental estrogen (n=33). Estrogen was found to correlate with significantly higher agreeability scores.
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Empathy, estradiol and androgen levels in 9-year-old children
Eider Pascual-Sagastizabal et al.
Personality and Individual Differences, forthcoming
Abstract:
The aim of this study was to analyze the possible relationship between circulating hormone levels (testosterone, androstenedione and estradiol) and empathy, as well as to identify any possible gender differences in this relationship. The subjects were 123 9-year-old Caucasian children (57 boys and 66 girls). Bryant's Empathy Index was used to measure empathy. Hormone levels were measured using an enzyme immunoassay technique in saliva samples. The Kruskal-Wallis test revealed the existence of interaction effects of estradiol-gender and testosterone-gender on empathy. Girls with low testosterone levels scored higher in Cognitive Empathy than girls with high testosterone levels. Boys with low estradiol levels scored higher in Affective Empathy than boys with high levels of this hormone. The results obtained open up new and interesting avenues of future research into the relationship between hormones and empathy in children.
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Walking the Straight and Narrow: Examining the Role of Traditional Gender Norms in Sexual Prejudice
Joseph Wellman & Shannon McCoy
Psychology of Men & Masculinity, forthcoming
Abstract:
In the current work, we examine the extent to which prejudice toward gay men and lesbian women may be driven in part by traditional gender norms and the violation of these norms that same-sex couples represent. Although these relationships have long been theorized, strong empirical evidence is lacking. Across two studies, men who strongly endorsed (Study 1) or were primed with (Study 2) traditional gender norms perceived relationship violence directed toward gay men as less severe, less in need of intervention, and more likely caused by the victim than participants low in gender norm endorsement or primed with neutral content. In contrast, traditional gender norms were less predictive of heterosexual men's prejudice toward lesbian victims of relationship violence, and not predictive of heterosexual women's prejudice toward gay and lesbian victims. Thus, the relationship between traditional gender norms and sexual prejudice appears to be strongest for heterosexual men's prejudice toward gay men.
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Contact with Gays and Lesbians and Same-Sex Marriage Support: The Moderating Role of Social Context
Stephen Merino
Social Science Research, forthcoming
Abstract:
Empirical research on the contact hypothesis has paid inadequate attention to the broader social and normative context in which contact occurs. Using data from the nationally representative Portraits of American Life Study, I test whether individuals' core networks moderate the effect of personal contact with gays and lesbians on same-sex marriage attitudes. OLS regression results demonstrate that, though contact is strongly associated with greater support for same-sex marriage, the effect is attenuated for individuals with a higher proportion of religious conservatives in their core network. This moderating effect holds even after controlling for respondents' religiosity and when the sample is limited to self-identified religious liberals and moderates. Future research on intergroup contact should be attentive to other influences within individuals' social contexts and examine how the outcomes of contact across a variety of social boundaries are moderated by these social influences.
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George Cunningham & Nicole Melton
Journal of Sex Research, Spring 2013, Pages 401-408
Abstract:
The purpose of this study was to examine the degree to which contact with lesbian and gay friends moderated the effects of religious fundamentalism and sexism on sexual prejudice. The authors gathered data from 269 heterosexual adults living in Texas. Results indicate that the effects of religious fundamentalism on sexual prejudice were reduced when contact was high. However, the positive association between modern sexism and sexual prejudice was not moderated by contact. The authors discuss theoretical and practical implications.
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Shaohua Hu et al.
PLoS ONE, March 2013
Abstract:
Recent imaging studies have shown that brain morphology and neural activity during sexual arousal differ between homosexual and heterosexual men. However, functional differences in neural networks at the resting state is unknown. The study is to characterize the association of homosexual preference with measures of regional homogeneity and functional connectivity in the resting state. Participants were 26 healthy homosexual men and 26 age-matched healthy heterosexual men in whom we collected echo planar magnetic resonance imaging data in the resting state. The sexual orientation was evaluated using the Kinsey Scale. We first assessed group differences in regional homogeneity and then, taking the identified differences as seed regions, we compared groups in measures of functional connectivity from those seeds. The behavioral significances of the differences in regional homogeneity and functional connectivity were assessed by examining their associations with Kinsey Scores. Homosexual participants showed significantly reduced regional homogeneity in the left inferior occipital gyrus, right middle occipital gyrus, right superior occipital gyrus, left cuneus, right precuneus, and increased regional homogeneity in rectal gyrus, bilateral midbrain, and left temporal lobe. Regional homogeneity correlated positively with Kinsey scores in the left inferior occipital gyrus. The homosexual group also showed reduced functional connectivity between left middle temporal gyrus, left supra-marginal gyrus, right cuneus and the seed region, i.e. left inferior occipital gyrus. Additionly, the connection between the left inferior occipital gyrus and right thalamus correlated positively with Kinsey scores. These differences in regional homogeneity and functional connectivity may contribute to a better understanding of the neural basis of male sexual orientation.
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Paul Merritt et al.
Psychology of Popular Media Culture, forthcoming
Abstract:
Authors of recent news columns have claimed that an "out" actor cannot convincingly play a heterosexual because knowing someone is gay will bias our perceptions of his performance. We tested this hypothesis by conducting a three-condition experiment in which participants read information about an actor from a fictional Facebook page indicating the actor was gay, straight, or did not say. All participants then viewed the same video audition monologue. After viewing the monologue, participants rated the actor's performance and personal characteristics of the actor himself. Although knowing the actor was gay significantly reduced ratings of his masculinity, there was no significant effect on ratings of his performance. This provides evidence that although being "out" may reduce perceptions of masculinity, this may not translate into reductions in performance appraisal. Our experiment also demonstrates the unique opportunity social networking sites provide for studying the potentially biasing effect of biographical information.
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Glen Jankowski, Philippa Diedrichs & Emma Halliwell
Psychology of Men & Masculinity, forthcoming
Abstract:
Men's body dissatisfaction is prevalent and a serious health concern as it is associated with negative outcomes including depression, disordered eating, and anabolic steroid abuse. Gay men are particularly vulnerable to body dissatisfaction, perhaps due to heightened sociocultural appearance pressures experienced in gay subculture. Appearance conversations represent an underresearched, but potentially potent, mechanism of appearance pressures. The current study explored whether differences in the frequency of engaging in appearance conversations accounted for differences in body dissatisfaction and associated risk factors among gay and heterosexual men. A purposeful sample of gay (N = 77, Mage = 32.57) and heterosexual (N = 78, Mage = 25.30) men were recruited from community organizations in the United Kingdom. Participants completed an online questionnaire assessing appearance conversations, body dissatisfaction, appearance orientation, and internalization of appearance ideals. Gay men reported more frequent engagement in positive and negative appearance conversations and greater body dissatisfaction, appearance orientation, and general internalization than heterosexual men. Moreover, frequency of appearance conversations mediated the relationship between sexuality and the majority of study variables, including body dissatisfaction (ps < .05). These findings suggest that appearance conversations are an important sociocultural influence on male body image and that they are important in understanding the differences between gay and heterosexual men's body dissatisfaction and associated risk factors.
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Ali Ahmed, Lina Andersson & Mats Hammarstedt
Review of Economics of the Household, March 2013, Pages 83-108
Abstract:
In this paper we explore annual earnings as well as full-time monthly earnings differentials resulting from sexual orientation. We observe that gay males are at an earnings disadvantage compared to male heterosexuals regardless of which earnings measure we use. This earnings disadvantage is found to be larger when we compare gay and heterosexual males who are working full-time. In addition, the disadvantage is larger in the private than in the public sector. Lesbians, however, earn more than heterosexual females. This earnings advantage is considerably smaller when we study full-time monthly rather than annual earnings but an earnings advantage for lesbians at the top of the earnings distribution is documented regardless of which earnings measure we use. In addition, lesbians are doing better than female heterosexuals in the public sector. To sum up, the results indicate that gay males face obstacles on the labor market that hinder them from reaching top-level positions and high earnings. The earnings advantage observed for lesbians is likely to stem from the fact that lesbians devote more time to market work than heterosexual females do.