The document discusses various theories of personality, including: 1. Psychoanalytic theories proposed by Sigmund Freud, Alfred Adler, Heinz Kohut, and Karen Horney which focus on unconscious conflicts, psychosexual development, and the id, ego, and superego. 2. Humanistic theories by Abraham Maslow and Carl Rogers which view people as active beings responding to present experiences and emphasize empathy. 3. Biological theories examining the role of the brain, including the prefrontal cortex and amygdala, in personality using techniques like brain imaging. 4. Behaviorist theories from B.F. Skinner, Ivan Pavlov, and Albert Bandura's Bobo doll experiment,