Psychoanalysis Psychoanalysis is a system of psychology originated by the Viennese physician Sigmund FREUD in the 1890's and then further developed by himself, his students, and other followers. It consists of three kinds of related activities: (1) a method for research into the human mind, especially inner experiences such as thoughts, feelings, emotions, fantasies, and dreams; (2) a systematic accumulation of a body of knowledge about the mind; and (3) a method for the treatment of psychological or emotional disorders. Psychoanalysis began with the discovery that HYSTERIA, an illness with physical symptoms that occurred in a completely healthy physical body--such as a numbn