Although some of his theories are still hotly debated, Sigmund Freud, (May 6, 1856–September 23, 1939) is widely regarded as a trailblazer in the realm of psychiatry and psychology. The Austrian psychiatrist and neurologist, who was allegedly the first to offer a comprehensive explanation of how human behavior is determined by the conscious and unconscious forces, is regarded as the founder of psychoanalysis.
Frank Sulloway is an Adjunct Professor in the Department of Psychology and a member of the Institute of Personality and Social Research at the University of California, Berkeley. He is the author of two highly acclaimed books, Freud, Biologist of the Mind: Beyond the Psychoanalytic Legend and Born to Rebel: Birth Order, Family Dynamics, and Creative Lives. Sulloway's research interests include evolutionary psychology, evolutionary biology, and the history of science.