Fig 1. Mean scores of the sexual attractiveness of films showing F-F, F-M, and M-M and the maximal level of evoked sexual arousal (SA) in the 2 groups. In homosexual men, M-M stimuli induce maximal sexual arousal, whereas F-M stimuli are preferred in heterosexual men. Results of 2 independent samples test comparisons (homosexual versus heterosexual) are displayed. Blue indicates homosexual men; green, heterosexual men; the asterisk, P < .001. Error bars equal 1 SD.