structural:summarization, quality:correction
Humanistic psychology is a psychological perspective that arose in the mid-20th century in answer to two theories: Sigmund Freud 's psychoanalytic theory and B. F. Skinner 's behaviorism. Thus, Abraham Maslow established the need for a "third force" in psychology. The school of thought of humanistic psychology gained traction due to Maslow in the 1950s.