Differences in Finger Length Ratios Between Self-Identified “Butch” and “Femme” Lesbians

@article{Brown2002DifferencesIF,
  title={Differences in Finger Length Ratios Between Self-Identified “Butch” and “Femme” Lesbians},
  author={Windy M. Brown and Christopher J Finn and Bradley M. Cooke and S. Marc Breedlove},
  journal={Archives of Sexual Behavior},
  year={2002},
  volume={31},
  pages={123-127}
}
There is indirect evidence that heightened exposure to early androgen may increase the probability that a girl will develop a homosexual orientation in adulthood. One such putative marker of early androgen exposure is the ratio of the length of the index finger (2D) to the ring finger (4D), which is smaller in male humans than in females, and is smaller in lesbians than in heterosexual women. Yet there is also evidence that women may have different sexual orientations at different times in… 
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The hypothesis that masculinity-femininity in adolescence is correlated with sexual orientation 5 years later and 6 years later is tested and it is predicted that for adolescent females in 1995 and 1996, more masculine females have a higher probability of self-identifying as homosexuals in 2001-02.
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    Journal of Biosocial Science
  • 2004
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The Coming-Out Process of Young Lesbian and Bisexual Women: Are There Butch/Femme Differences in Sexual Identity Development?
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Sexual identity formation does not differ between butch or femme women, but differences are linked to sexual identity as lesbian or bisexual, and neither sexual identity nor butch/femme alone may explain sexual identity integration.
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