Final answer:
Sigmund Freud's psychoanalysis focused on understanding the unconscious mind and its influence on conscious behavior. He used techniques such as dream analysis, slips of the tongue, and free association to access the unconscious. Freud's theory of psychoanalysis remained dominant in clinical psychology for several decades.
Step-by-step explanation:
Sigmund Freud's psychoanalysis focused on understanding the unconscious mind and its influence on conscious behavior. He believed that most thoughts and feelings are buried in the unconscious and that repressed memories stored in the unconscious can manifest as symptoms.
Freud used techniques such as dream analysis, slips of the tongue, and free association to access the unconscious. He also proposed the concepts of id, ego, and superego as components of personality, and suggested that personality develops through psychosexual stages. While some of Freud's ideas have been criticized, his psychoanalytic theory remained influential in clinical psychology for several decades.