Some don't like it hot: Genital and subjective sexual arousal in response to copulatory movements of various animal species
Abstract
Gynephilic women show genitally react to erotic video stimuli depicting preferred sex, preferred sex, and even other animal species. Here we test whether specific sex-related activity - copulatory movements (CM) - is the main sexual cue and elicitor of genital response.
Fifty-eight (28 females, mean age 27.41, sd = 7.32) heterosexuals were presented with eleven 60 seconds long video stimuli containing CM in randomized order, altering with distractors. Their genital (penile and vaginal plethysmography, PPG/VPG) and subjective (9-point scale) arousal was measured.
PPG/VPG: Mixed model ANOVA revealed an effect of stimulus type (ω2 = 0.35). No difference in responses between men and women (ω2 = 0).
Subjective arousal: There was the effect of stimulus type (ω2 = 0.72). Men rated human stimuli as more sexually arousing than women.
We observed a significant correlation between the genital and subjective responses for both sexes, r = .54, p < 0.001, 95% CI [.48, .59].