Dermatoglyphics, handedness, sex, and sexual orientation

Archives of Sexual Behavior
Brian S MustanskiSarah Kaspar

Abstract

Both handedness and dermatoglyphic asymmetry reflect early, prenatal influences and both have been reported to be associated with male sexual orientation; handedness has been related to female sexual orientation as well. Neurohormonal and developmental perturbation are two competing hypothesis that attempt to explain these connections. We attempted to replicate these associations and to extend dermatoglyphic asymmetry findings to women. Dermatoglyphic directional asymmetry and fluctuating asymmetry were unrelated to sexual orientation. Homosexual women, but not homosexual men, had highly significant increases in non-right-handedness compared with same-sex heterosexual controls. Although this pattern of results does not allow resolution of the two competing models, it does lend additional support to a biological basis of sexual orientation.

Citations

Mar 19, 2005·Perceptual and Motor Skills·Senol DaneEmre Oztop
Dec 13, 2007·Archives of Sexual Behavior·Qazi Rahman, Deano J Symeonides
May 28, 2019·Annals of Human Biology·Miroslav KrálíkMartin Čuta
Dec 25, 2007·Archives of Sexual Behavior·Patricia A Hall, Catherine M Schaeff
Dec 29, 2007·Archives of Sexual Behavior·Stacie S MillerBrian S Mustanski
Jul 11, 2007·Annals of Human Biology·Sarah E MedlandNicholas G Martin
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Apr 7, 2005·Neuroscience and Biobehavioral Reviews·Celina C C Cohen-BendahanSheri A Berenbaum
Nov 16, 2021·Archives of Sexual Behavior·Margherita AttanasioMonica Mazza

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