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Article
Childhood Gender Nonconformity and Parental Maltreatment as Mediators of Sexual Orientation Disparities in Childhood Emotional and Behavioral Difficulties
The mechanisms underlying sexual orientation differences in psychopathology originating in childhood remain understudied since sexual orientation does not directly manifest in childhood. This study tested whet...
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Article
Open AccessBidirectional Causal Associations Between Same-Sex Attraction and Psychological Distress: Testing Moderation and Mediation Effects
Only one study has examined bidirectional causality between sexual minority status (having same-sex attraction) and psychological distress. We combined twin and genomic data from 8700 to 9700 participants in t...
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Article
Neuroticism and Sexual Orientation-Based Victimization as Mediators of Sexual Orientation Disparities in Mental Health
This study tested whether elevated risk of poorer mental health outcomes among nonheterosexual adolescents compared with heterosexual adolescents is plausibly explained by neuroticism and sexual orientation-ba...
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Article
Open AccessChildhood Gender Nonconformity and Recalled Perceived Parental and Peer Acceptance Thereof, Internalized Homophobia, and Psychological Well-Being Outcomes in Heterosexual and Gay Men from Poland
The link between gender nonconformity and psychopathology may be due in part to negative childhood experiences resulting from other people’s reactions to gender nonconformity. The aim of this study was to test...
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Article
Open AccessAdolescent Sexual Behavior Patterns in a British Birth Cohort: A Latent Class Analysis
This study examined adolescent sexual behaviors patterns, and the consistency between sexual behavior and sexual orientation, in a prospective birth cohort. We used data on 5150 young people from the Avon Long...
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Article
Open AccessMale sexual orientation, gender nonconformity, and neural activity during mental rotations: an fMRI study
The cross-sex shift hypothesis predicts that gay men should perform more like heterosexual women on important neurocognitive tasks on which men score higher than women, such as mental rotation. Studies also su...
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Article
Open AccessSexual Orientation and Cognitive Ability: A Multivariate Meta-Analytic Follow-Up
A cross-sex shift model of human sexual orientation differences predicts that homosexual men should perform or score in the direction of heterosexual women, and homosexual women in the direction of heterosexua...
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Article
Open AccessMinority Stressors, Rumination, and Psychological Distress in Lesbian, Gay, and Bisexual Individuals
This study tested the mechanisms by which social stigma contributes to psychological distress in lesbian, gay, and bisexual individuals. A large community sample (N = 4248, M age = 29.9 years, 42.9% female, 57.1%...
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Article
Open AccessPrevalence of Sexual Orientation Across 28 Nations and Its Association with Gender Equality, Economic Development, and Individualism
The prevalence of women’s and men’s heterosexuality, bisexuality, and homosexuality was assessed in 28 nations using data from 191,088 participants from a 2005 BBC Internet survey. Sexual orientation was measu...
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Article
A Step in the Right Direction But We Must Resist Identity Politics
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Article
Gender-Specificity in Viewing Time Among Heterosexual Women
Measures of sexual interest tend to be more gender-specific in heterosexual men than in heterosexual women. Cognitive measures, such as viewing time to attractive stimuli, may also show similar patterns of gen...
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Article
Open AccessSexual Orientation-Related Differences in Virtual Spatial Navigation and Spatial Search Strategies
Spatial abilities are generally hypothesized to differ between men and women, and people with different sexual orientations. According to the cross-sex shift hypothesis, gay men are hypothesized to perform in ...
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Article
Lateralization for Processing Facial Emotions in Gay Men, Heterosexual Men, and Heterosexual Women
This study tested whether male sexual orientation and gender nonconformity influenced functional cerebral lateralization for the processing of facial emotions. We also tested for the effects of sex of poser an...
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Article
Fraternal Birth Order and Extreme Right-Handedness as Predictors of Sexual Orientation and Gender Nonconformity in Men
The present study explored whether there were relationships between number of older brothers, handedness, recalled childhood gender nonconformity (CGN), and sexual orientation in men. We used data from previou...
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Article
A Discordant Monozygotic Twin Approach to Testing Environmental Influences on Sexual Dysfunction in Women
The present study explored the causal role played by putative environmental factors on variation in female sexual dysfunction (FSD) by investigating FSD discordant monozygotic (MZ) twins, which permits a contr...
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Article
Gender Nonconformity, Intelligence, and Sexual Orientation
The present study explored whether there were relationships among gender nonconformity, intelligence, and sexual orientation. A total of 106 heterosexual men, 115 heterosexual women, and 103 gay men completed ...
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Article
Genetic and Environmental Effects on Same-sex Sexual Behavior: A Population Study of Twins in Sweden
There is still uncertainty about the relative importance of genes and environments on human sexual orientation. One reason is that previous studies employed self-selected, opportunistic, or small population-ba...
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Article
Maternal Inheritance and Familial Fecundity Factors in Male Homosexuality
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Article
Maternal Inheritance and Familial Fecundity Factors in Male Homosexuality
This study, following Camperio-Ciani, Corna, and Capiluppi [(2004), Proceedings of the Royal Society of London, Series B, Biological Sciences, 271, 2217–2221] aimed to examine the familial history of male homosex...
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Article
A Comparative Analysis of Functional Cerebral Asymmetry in Lesbian Women, Heterosexual Women, and Heterosexual Men
This study tested dichotic listening performance, a measure of functional cerebral asymmetry previously shown to be sexually dimorphic, in homosexual women (n=23), heterosexual women (n=27), and heterosexual men ...