I am a professor of psychology at Gettysburg College, where I direct the Perception Lab.  I investigate the visual perception of people, linking physical regularities of the face to social perception.  A major focus of my work is the development of a biologically based account of makeup and other techniques of personal decoration. My discovery that some people are face “super-recognizers” has begun to transform policing, especially in the UK.

In a newer line of research, I am exploring how humans, societies, and cultures affect AI, and are affected by AI.