Jennifer Aniston and Vince Vaughn did it in a movie. Jen and Brad Pitt did it in real life. I may not be Jen and you may not be Brad, but "breaking up" with people is a normal life event. Indeed ...

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 ...

Behaviorism in educational psychology is the idea that all human behaviors stem from interactions with the environment, and modifying the environment will result in different behaviors.

Developmental psychology is a field of study that focuses on people's change and growth across their lifespan — how people develop physically, socially, mentally, and emotionally over time.