Genetic and environmental influences on female sexual orientation, childhood gender typicality and adult gender identity
In: PloS one, Jg. 6 (2011-03-09), Heft 7
Online
unknown
Zugriff:
Background Human sexual orientation is influenced by genetic and non-shared environmental factors as are two important psychological correlates – childhood gender typicality (CGT) and adult gender identity (AGI). However, researchers have been unable to resolve the genetic and non-genetic components that contribute to the covariation between these traits, particularly in women. Methodology/Principal Findings Here we performed a multivariate genetic analysis in a large sample of British female twins (N = 4,426) who completed a questionnaire assessing sexual attraction, CGT and AGI. Univariate genetic models indicated modest genetic influences on sexual attraction (25%), AGI (11%) and CGT (31%). For the multivariate analyses, a common pathway model best fitted the data. Conclusions/Significance This indicated that a single latent variable influenced by a genetic component and common non-shared environmental component explained the association between the three traits but there was substantial measurement error. These findings highlight common developmental factors affecting differences in sexual orientation.
Titel: |
Genetic and environmental influences on female sexual orientation, childhood gender typicality and adult gender identity
|
---|---|
Autor/in / Beteiligte Person: | Rahman, Qazi ; Spector, Tim D. ; Burri, Andrea ; Cherkas, Lynn |
Link: | |
Zeitschrift: | PloS one, Jg. 6 (2011-03-09), Heft 7 |
Veröffentlichung: | 2011 |
Medientyp: | unknown |
ISSN: | 1932-6203 (print) |
Schlagwort: |
|
Sonstiges: |
|