![]() ![]() ![]() At the univariate level, lesbian and heterosexual women differed in 17 facial features (out of 63) and four were unique multivariate predictors in logistic regression. We found that facial structure differed depending on sexual orientation substantial variation in sexual orientation was predicted using facial metrics computed by a facial modelling program from photographs of White faces. A total of 52 lesbian women, 134 heterosexual women, 77 gay men, and 127 heterosexual men were recruited at a Canadian campus and various Canadian Pride and sexuality events. Despite marked sex differences in facial structure, the relationship between sexual orientation and facial structure is understudied. Biological models have typically framed sexual orientation in terms of effects of variation in fetal androgen signaling on sexual differentiation, although other biological models exist.
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