Human (Homo sapiens) and baboon (Papio papio) chimeric face processing: right-hemisphere involvement

Catherine Wallez1, Jacques Vauclair

  • 1Department of Psychology, Research Center in the Psychology of Cognition, Language and Emotion, Aix-Marseille University, Aix-en-Provence, France. catherine.wallez@univ-amu.fr

Summary

Olive baboons show right-hemisphere specialization for screeching, but not eyebrow-raising. Human judges perceived greater emotional intensity in left-sided baboon facial expressions, suggesting shared emotional processing mechanisms.

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