Does Men’s Facial Sexual Dimorphism Affect Male Observers’ Selective Attention?

Abstract

Facial sexual dimorphism affects observers’ physical dominance ratings. Here, we test whether such perceived dominance influences selective attention. To minimize demand characteristics, we examined whether task-irrelevant masculinized men’s faces would show an attentional bias in several experimental paradigms. Experiment 1 employed a Posner Cueing Paradigm in which participants classified shapes after a masculinized or feminized man’s face was presented. We could not find a difference in participants’ classification speeds when either feminized or masculinized face cued target position. Experiment 2 employed a Flanker Task in which participants judged letter orientation, while ignoring flanking faces. There was no observed difference in participants’ reaction time (RT) when masculinized faces flanked the target. Experiment 3 employed a Dot Probe Task, where participants were presented with a masculinized face and a feminized face to the left and right of center screen, and a target shape was presented in the location of one face. Participants’ task was to classify shape orientation. We observe a small effect of facial sexual dimorphism on participants’ classification speed. In Experiment 4, we primed participants with images meant to induce fear or arousal before each trial of a Dot Probe Task. Following the presentation of a fear inducing picture, participants RT to classify shapes when a masculinized face cued target position did not differ from when a feminized face cued target position. The two different presentation times did not create different patterns of results, indicating that masculinized faces did not induce either a cueing or inhibitory affect. Overall, we failed to support the hypothesis that people selectively attend to masculinized faces when they are presented as irrelevant information.