Waist-to-Hip Ratio as Supernormal Stimuli: Effect of Contrapposto Pose and Viewing Angle

Heterosexual Men's Visual Attention to Nude Images Depicting Cisgender Males, Cisgender Females, and Gynandromorphs

Gynandromorphophilia refers to sexual attraction and arousal to feminine males, who may or may not have breasts, and who retain their penises. Previous research has suggested that some capacity for gynandromorphophilia may characterize males who are gynephilic (i.e., sexually attracted and aroused to adult females). This study examined Canadian cisgender gynephilic men's (n = 65) visual attention and subjective ratings of sexual arousal when presented with nude images of feminine males with, and without breasts, masculine males, and feminine females. Visual attention was assessed using an infrared eye-tracker. Subjective arousal to feminine females was highest, followed by subjective arousal to feminine males with breasts, feminine males without breasts, and masculine males. However, subjective arousal to feminine males without breasts and to masculine males did not differ significantly. The patterning of visual attention to images of females was unique, in that participants were equally likely to attend first to the face, chest or genitals. These areas also elicited relatively greater fixation durations and counts. Although participants fixated onto the chests of feminine males with breasts for longer durations than those of masculine males, most of the differences between feminine males, with and without breasts, were non-significant. These results suggest that female sex-based traits play a more primary role in gynephilic men's sexual arousal than feminine gender-based traits.

Motion and Gender-Typing Features Interact in the Perception of Human Bodies

The human body conveys socially relevant information, including a person's gender. Several studies have shown that both shape and motion inform gender judgments of bodies. However, while body shape seems to influence more the judgment of female bodies, body motion seems to play a major role in the judgments of male bodies. Yet, the interdependence of morphologic and dynamic cues in shaping gender judgment and attractiveness evaluation in body perception is still unclear. In two experiments, we investigated how variations of implied motion and shape interact in perceptual and affective judgments of female and male bodies. In Experiment 1, participants were asked to provide ratings for masculinity and femininity of virtual renderings of human bodies with variable gender-typing features and implied motion. We found evidence of a tendency to perceive bodies in static poses as more feminine and bodies in dynamic poses as more masculine. In Experiment 2, participants rated the same pictures for dynamism and pleasantness. We found that male bodies were judged more dynamic than female bodies with the same pose. Also, female bodies were liked more in static than in dynamic poses. A mediation analysis allowed us to further shed light on the relationship between gender-typing features and motion, suggesting that the less is the movement conveyed by a female body, the greater is an observer's sensitivity to its femininity, and this leads to a more positive evaluation of its pleasantness. Our findings hint to an association between stillness and femininity in body perception, which can stem from either the evolutionary meaning of sexual selection and/or the influence of cultural norms.