What is pioneer in psychoanalysis?

Sigmund Freud is considered the pioneer of psychoanalysis. He developed this field of study in the late 19th century and early 20th century in Vienna, Austria. Freud believed that the human mind was comprised of both conscious and unconscious elements, and that repressed memories and desires from childhood could lead to psychological problems later in life. He also developed the idea of the psyche being made up of three parts: the id, the ego, and the superego. Freud's theories greatly impacted the field of psychology and psychiatry and continue to influence them today.