John Broadus Watson

Watson, John Broadus (1878–1958), U.S. psychologist who founded behaviorism, which states that a person's behavior is a result of stimuli in his or her environment. It rejects the idea of inborn emotions, with the exceptions of fear, anger, and love. While Watson's work helped lead to the development of psychology as a science, his views are not widely held today.

See also: Psychology.