Fluctuating asymmetry, second to fourth finger length ratios and human sexual orientation
@article{Rahman2005FluctuatingAS, title={Fluctuating asymmetry, second to fourth finger length ratios and human sexual orientation}, author={Qazi Rahman}, journal={Psychoneuroendocrinology}, year={2005}, volume={30}, pages={382-391} }
80 Citations
Sexual Orientation and Fluctuating Asymmetry in Men and Women
- PsychologyArchives of sexual behavior
- 2008
Although elevated levels of developmental stress appear to be linked to shifts in sexual orientation, the underlying mechanism does not seem to be connected to sex-atypical prenatal hormones.
Hand Asymmetry in Heterosexual and Homosexual Men and Women: Relationship to 2D:4D Digit Ratios and Other Sexually Dimorphic Anatomical Traits
- Psychology, BiologyArchives of sexual behavior
- 2008
The present evidence actually suggests that homosexuals have lower FA than heterosexuals, raising the question of whether the positive fitness components associated with low FA may contribute to selection that maintains homosexuality in a population.
Sexual Orientation, Sexual Arousal, and Finger Length Ratios in Women
- PsychologyArchives of sexual behavior
- 2021
Women’s sexual and behavioral traits, and potential anatomical traits, are possibly masculinized at different stages of gestation, possibly due to their sex-atypical masculinization during prenatal development.
Prenatal Influences on Sexual Orientation: Digit Ratio (2D:4D) and Number of Older Siblings
- PsychologyEvolutionary psychology : an international journal of evolutionary approaches to psychology and behavior
- 2011
Prenatal androgen levels are suggested to influence sexual orientation in both sexes. The 2D:4D digit ratio has been found to associate with sexual orientation, but published findings have often been…
Fraternal Birth Order, Handedness, and Sexual Orientation in a Chinese Population
- PsychologyJournal of sex research
- 2017
The results showed that homosexual women are more likely to be non-right-handed than heterosexual women, regardless of how sexual orientation was defined, whereas bisexual women areMore likely to been non- right-handedthan heterosexual women whenSexual orientation was assessed via sexual attraction and sexual identity.
Finger Length Ratio (2D:4D) and Dimensions of Sexual Orientation
- Psychology, MedicineNeuropsychobiology
- 2006
A continuous neurohormonal sexual differentiation of the brain, most notably for women, that overrides categories and results in varying dimensions of sexual orientation is hypothesized.
Shape Differences Between the Faces of Homosexual and Heterosexual Men
- PsychologyArchives of sexual behavior
- 2014
Differences in facial morphology of homosexual and heterosexual men do not simply mirror variation in femininity, and the stereotypic association of feminine looking men as homosexual may confound judgments of sexual orientation.
Hair whorl direction and sexual orientation in human males.
- PsychologyBehavioral neuroscience
- 2009
The authors found no significant difference between heterosexual and homosexual men in hair whorl direction, but the authors did replicate the fraternal birth order effect (more older brothers for homosexual men).
Handedness is a biomarker of variation in anal sex role behavior and Recalled Childhood Gender Nonconformity among gay men
- PsychologyPloS one
- 2017
It is suggested that developmental processes linked to handedness underpin variation among men in sexual orientation and gender nonconformity as well as variation among subgroups of gay men that are delineated by anal sex roles.
Fraternal Birth Order and Extreme Right-Handedness as Predictors of Sexual Orientation and Gender Nonconformity in Men
- PsychologyArchives of sexual behavior
- 2015
There was evidence for a relationship among handedness, sexual orientation, and CGN, and mediation analysis revealed that handedness was associated with sexual orientation directly and also indirectly through the mediating factor of CGN.
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The androgen-sensitive pattern of finger lengths is examined, and there is evidence that homosexual women are exposed to more prenatal androgen than heterosexual women are, and men with more than one older brother, who are more likely than first-born males to be homosexual in adulthood, are exposure to more pregnancies than eldest sons.
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