Exogenous Hormone Use Among Transfeminine Individuals in Chiang Mai, Thailand.

Purpose: This study describes Thai transfeminine individuals' exogenous hormone use.

Methods: During the period May-July 2017, a survey was conducted among Thai transfeminine adults (=181) who reported their exogenous hormone use, age at onset of use, brands used, where they obtained hormones, and discontinuation of use.

Results: Most participants (86.

Characteristics of Youth Presenting for Gender Care Compared to Background Populations: Examination of Social Determinants of Health.

Transgender and gender diverse (TGD) youth in North American clinireports are predominantly White with relatively high socioeconomic status suggesting that access to gender-affirming care is inequitable. This study examined whether socioeconomic and social determinant of health discrepancies exist between a clinical population of TGD youth and surrounding communities. Patient postal codes were used to link the Ontario Marginalization Index (ON-MARG) to a clinic-based TGD youth cohort ( = 298).

Observations on Gender Variance in Chinese Community Children Measured by the Gender Identity Questionnaire for Children.

Few studies have examined how gender variance (GV), broadly defined as gender identity and behaviors (e.g., activities and preferences) that do not correspond with culturally defined gender norms, manifests in community samples, particularly in children and outside Western contexts.

"He did girls' things!" Hong Kong and Canadian children's reasoning about moral judgments of peers' gendered behaviors.

Children show less positivity toward gender-nonconforming (GN) than gender-conforming (GC) peers. Yet, little is known about children's reasoning about peers of varying gender expressions, including age-, gender-, and culture-related influences. We investigated how children aged 4- to 5- and 8- to 9-years-old in Hong Kong and Canada ( = 678) reason about their moral judgments of GC and GN peers.

White matter microstructure in transmasculine and cisgender adolescents: A multiparametric and multivariate study.

Adolescence is a sensitive developmental period for neural sex/gender differentiation. The present study used multiparametric mapping to better characterize adolescent white matter (WM) microstructure. WM microstructure was investigated using diffusion tensor indices (fractional anisotropy; mean, radial, and axial diffusivity [AD]) and quantitative T1 relaxometry (T1) in hormone therapy naïve adolescent cisgender girls, cisgender boys, and transgender boys (i.

Gender diversity is correlated with dimensional neurodivergent traits but not categorical neurodevelopmental diagnoses in children.

Background: Gender clinic and single-item questionnaire-based data report increased co-occurrence of gender diversity and neurodevelopmental conditions. The nuances of these associations are under-studied. We used a transdiagnostic approach, combining categorical and dimensional characterization of neurodiversity, to further the understanding of its associations with gender diversity in identity and expression in children.

Gender diversity in a Chinese community sample and its associations with autism traits.

Emerging evidence suggests that gender dysphoria or gender diversity (GD) intersects frequently with autism spectrum disorder or autism traits. However, the magnitude and interpretation of this link continue to be debated. Most child studies on this topic were performed in clinical populations, and little is known about the generalizability of this co-occurrence to the broader community, especially to non-Western samples.

Male androphilia, fraternal birth order, and female fecundity in Samoa: A 10-y retrospective.

Two separate but related literatures have examined familial correlates of male androphilia (i.e., sexual attraction and arousal to masculine adult males).

Recalled Childhood Separation Anxiety in Relation to Sex, Sexual Orientation, and Gender Identity in Thailand.

Same-sex sexual attraction is an evolutionary paradox. It is influenced by genes but also associated with reduced reproduction. An altruistic disposition toward kin could increase relatives' reproduction, thus addressing this paradox.

Children's implicit gender-toy association development varies across cultures.

Gender-stereotyped beliefs develop early in childhood and are thought to increase with age based on prior research that was primarily carried out in Western cultures. Little research, however, has examined cross-cultural (in)consistencies in the developmental trajectory of gender-stereotyped beliefs. The present study examined implicit gender-toy stereotypes among 4- to 9-year-olds ( = 1,013; 49.

Not Who You Are, But Who You Are With: Re-examining Women's Less Satisfying Sexual Debuts.

Gender differences in appraisals of first intercourse are among the largest in sexuality research, with women indicating less satisfying "sexual debuts" than men. Dispositional or "actor-level" explanations for this gender gap are pervasive, yet research has largely examined heterosexual debuts in which actor gender and partner gender are confounded. We assessed whether women's less satisfying sexual debuts are better explained by actor gender or partner gender, comparing experiences of women who debuted with men (WDM) with those of men and women who debuted with women (MDW, WDW).

Cortical Structure Differences in Relation to Age, Sexual Attractions, and Gender Dysphoria in Adolescents: An Examination of Mean Diffusivity and T1 Relaxation Time.

Recent research found that the combination of masculine gender identity and gynephilia was associated with cortical T1 relaxation time, which is considered to reflect gray matter density. We hypothesized that mean diffusivity (MD), a diffusion tensor imaging metric that reflects the degree to which water movement is free versus constrained, in combination with T1 relaxation time would provide further insight regarding cortical tissue characteristics. MD and T1 relaxation time were measured in 76 cortical regions in 15 adolescents assigned female at birth who experience gender dysphoria (GD AFAB) and were not receiving hormone therapy, 17 cisgender girls, and 14 cisgender boys (ages 12-17 years).

A Test of the Kin Selection Hypothesis for Female Gynephilia in Thailand.

Female gynephilia (i.e., sexual attraction to adult females) is considered an evolutionary paradox because it reduces direct reproduction, yet it is influenced by genetic factors and has persisted over time and across different cultures.

Carving the Biodevelopment of Same-Sex Sexual Orientation at Its Joints.

Sexual orientation is a core aspect of human experience and understanding its development is fundamental to psychology as a scientific discipline. Biological perspectives have played an important role in uncovering the processes that contribute to sexual orientation development. Research in this field has relied on a variety of populations, including community, clinical, and cross-cultural samples, and has commonly focused on female gynephilia (i.

Inter-Network Brain Functional Connectivity in Adolescents Assigned Female at Birth Who Experience Gender Dysphoria.

Gender dysphoria (GD) is characterized by distress due to an incongruence between experienced gender and sex assigned at birth. Brain functional connectivity in adolescents who experience GD may be associated with experienced gender (vs. assigned sex) and/or brain networks implicated in own-body perception.

The Risks and Benefits of Being "Early to Bed": Toward a Broader Understanding of Age at Sexual Debut and Sexual Health in Adulthood.

Background: A younger age at sexual intercourse has frequently been linked to adverse sexual health outcomes. Yet, little is known about its associations with healthy sexual function, and less still about the timing of pre-coital sexual debuts and adult sexual health.

Aim: We examined associations between an earlier sexual debut and subsequent sexual health, using broad operationalizations of each that capture pre-coital experiences and positive outcomes.

Childhood Gender Variance and the Autism Spectrum: Evidence of an Association Using a Child Behavior Checklist 10-Item Autism Screener.

Childhood gender variance (GV) is associated with autism spectrum disorder (ASD) diagnosis/traits; however, this association has mainly been investigated in clinical samples. An ASD screening measure based on 10 items from the commonly used Child Behavior Checklist (CBCL) might enable investigation of this association in a wider variety of (non-clinical) populations where the CBCL and a measure of GV are available. We investigated whether GV in 6- to 12-year-olds ( = 1719; 48.

A Learning Experience? Enjoyment at Sexual Debut and the Gender Gap in Sexual Desire among Emerging Adults.

Gender differences in experience of first intercourse are among the largest in sexuality research, with women recalling less pleasure and satisfaction than men. This "enjoyment gap" has not been considered in explanations of gender differences in sexual desire. Yet, reinforcement and incentive learning feature prominently in recent models of women's sexual desire, and nonhuman animal models demonstrate their impact at sexual debut.

Culture influences the development of children's gender-related peer preferences: Evidence from China and Thailand.

Current understanding of how culture relates to the development of children's gender-related peer preferences is limited. To investigate the role of societal acceptance of gender nonconformity, this study compared children from China and Thailand. Unlike China and other cultures where the conceptualization of gender as binary is broadly accepted, individuals who identify as a nonbinary "third" sex/gender have been highly visible and tolerated in Thai society for at least several decades.

Mental rotation task performance in relation to sexual and gender diversity in Thailand.

Neurohormonal theory argues that organizational effects of hormone exposure influence sexual orientation and gender identity, as well as sex differences in visuospatial cognition. This study examined mental rotation task (MRT) performance in a diverse Thai sample (N = 980). Thai culture has several third genders: individuals assigned male at birth (AMAB) who are feminine and attracted to cis men (i.

An anthropometric study of sexual orientation and gender identity in Thailand.

The biodevelopment of psychological sex differentiation is putatively reflected in several anthropometrics. We examined eight anthropometrics in 1404 Thai participants varying in sex, sexual orientation, and gender identity/expression: heterosexual men and women, gay men, lesbian women, bisexual women, sao praphet song (transgender birth-assigned males), toms (transgender birth-assigned females), and dees (birth-assigned females attracted to toms). Exploratory factor analyses indicated the biomarkers should be analyzed independently.

Cognitive processing of sexual cues in asexual individuals and heterosexual women with desire/arousal difficulties.

Asexuality is defined as a unique sexual orientation characterized by a lack of sexual attraction to others. This has been challenged, with some experts positing that it is better explained as a sexual dysfunction. Sexual Interest/Arousal Disorder (SIAD) is characterized by absent/reduced sexual interest/arousal paired with personal distress, with two subtypes: acquired and lifelong.