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John D. Ruys Jr.

Associate Adjunct Professor of Psychology
Esther Lee Mirmow Chair in Psychology


BS, University of California, Davis
MA, University of California, Davis
PhD, University of California, Davis


John Ruys is an experimental psychologist. His research focuses on emotion and social cognition (what we think and feel about others) in human and nonhuman animals. Ruys’ early work focused on individual differences in social behavior and substance use. More recently, he and his students have focused on studying the cues people use to determine sexual orientation, affect, attractiveness, compatibility, and friendship especially in queer communities (LGBTQ+).

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