DeBruine LM (2009). Sources of individual differences in face preferences. University of Newcastle Institute of Neuroscience Seminar in Newcastle, UK. April 2009.

Faces convey important information, such as a person's age, sex, and emotional state. Information about genetic relatedness can also be conveyed in the face. I will review evidence that kinship is perceivable in the face and that people respond to facial resemblance in ways that are consistent with it being a cue of kinship. Consistent with theories of inclusive fitness and inbreeding avoidance, resemblance to self increases prosocial attributions such as trustworthiness and general attractiveness, but decreases sexual attractiveness. I will also discuss evidence for proximate mechanisms underlying perceptions of self- or family-resemblance and allowing for sex-contingent preferences.

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