John D Ruys Jr

Assistant Adjunct Professor of Psychology


At Mills Since 2019


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. Dr. Ruys’ early work focused on individual differences in social behavior and substance use. More recently, Dr. Ruys 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+).


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

Faculty Office Hours, Spring 2019

Days Times Room
M 12:30 pm–1:30 pm NSB 149
  and by appointment NSB 149

Spring 2021 Schedule

Day Time Course Title Room
MW1:00 pm-2:15 pmDevelopmental Psychology
MW2:30 pm-3:45 pmDevelopmental Psychology

Courses Taught

  • PSYC 040: Life-Span Developmental Psychology
  • PSYC 049: Fundamentals of Psychology
  • PSYC 080: Adolescence
  • PSYC 146: Statistics for the Behavioral Sciences
  • PSYC 180C: Lesbian, Gay, Bisexual, Transgender, and Queer Psychology