The importance of face-shape masculinity for perceptions of male dominance depends on study design

Dong, Junzhi and Leger, Kathlyne and Shiramizu, Victor K. M. and Marcinkowska, Urszula M. and Lee, Anthony J. and Jones, Benedict C. (2023) The importance of face-shape masculinity for perceptions of male dominance depends on study design. Scientific Reports, 13 (1). 12620. ISSN 2045-2322 (https://doi.org/10.1038/s41598-023-39912-x)

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Abstract

Dominance perceptions play an important role in social interactions. Although many researchers have proposed that shape masculinity is an important facial cue for dominance perceptions, evidence for this claim has come almost exclusively from studies that assessed perceptions of experimentally manipulated faces using forced-choice paradigms. Consequently, we investigated the role of masculine shape characteristics in perceptions of men's facial dominance (1) when shape-manipulated stimuli were presented in a forced-choice paradigm and (2) when unmanipulated face images were rated for dominance and shape masculinity was measured from face images. Although we observed large effects of masculinity on dominance perceptions when we used the forced-choice method (Cohen's ds = 2.51 and 3.28), the effect of masculinity on dominance perceptions was considerably smaller when unmanipulated face images were rated and shape masculinity measured from face images (Cohen's ds = 0.44 and 0.62). This pattern was observed when faces were rated separately for physical dominance, social dominance, and masculinity, and was seen for two different sets of stimuli. Collectively, these results suggest that shape masculinity may not be a particularly important cue for dominance perceptions when faces vary simultaneously on multiple dimensions, as is the case during everyday social interactions.

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