Microexpressions: More Than Meets the Eye

23:10 minutes

David Matsumoto, a psychology professor at San Francisco State University, trains national security officials and police officers to recognize “microexpressions”—fleeting, split-second flashes of emotion across someone’s face. Matsumoto says those subtle cues may reveal how an interview subject is feeling and help officials to hone their line of questioning.

Segment Guests

David Matsumoto

David Matsumoto is director of Humintell and a psychology professor at San Francisco State University in San Francisco, California.

Meet the Producer

About Christopher Intagliata

Christopher Intagliata was Science Friday’s senior producer. He once served as a prop in an optical illusion and speaks passable Ira Flatowese.