Psychoanalysis is based on the observation that individuals are often unaware of many of the factors that determine their emotions and behavior. These unconscious factors may create unhappiness or difficulties in work and in love relationships, or disturbances in mood and self-esteem. Known as the "father of psychology," Sigmund Freud developed many of the first theories of modern physiology. He put forth many new concepts about sexuality, consciousness, unconsciousness and instincts. It was these concepts …showed first 75 words of 1035 total…

…showed last 75 words of 1035 total…