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Face preferences and the behavioral immune system

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Several lines of evidence suggest that humans have a behavioral immune system that functions to reduce the consequences of infectious disease by minimizing contact with sources of pathogens. In this talk, I will first present evidence from studies of regional variation, individual differences, and facultative changes in preferences for shape cues in faces that suggest mate preferences are a potentially important component of the behavioral immune system. I will then discuss new evidence suggesting that color cues in faces communicate information about individuals’ susceptibility to infectious disease and that preferences for these color cues may be an important aspect of the behavioral immune system. Together, these data are good evidence for models of human behavior that emphasize the importance of pathogen avoidance.

This talk is part of the Bioanth series.

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