title: A crossover interaction between sex, sexual orientation, and handedness.
abstract: The distribution of handedness scores was analysed in 1414 heterosexual, bisexual, and homosexual men and women. Hand preference was assessed by a questionnaire that distinguishes consistently right-handed from partially or completely left-handed individuals, and sexual orientation was measured by the Kinsey scales. As expected from population-based studies, heterosexual men were, on average, more left-handed than heterosexual women. By contrast, gay men were more right-handed than lesbians or heterosexual men, and lesbians were more left-handed than gay men or heterosexual women. This crossover interaction suggests that a common variable influences sex, sexual orientation, and hand preference.
authors.affiliation: CRCI/PR-SSI, Recinto de Río Piedras, Universidad de Puerto Rico, San Juan. A_PATTATUCCI@UPR1.UPR.CLU.EDU
authors.forename: A M
authors.initials: AM
authors.lastname: Pattatucci
authors.forename: C
authors.initials: C
authors.lastname: Patterson
authors.forename: J
authors.initials: J
authors.lastname: Benjamin
authors.forename: D H
authors.initials: DH
authors.lastname: Hamer