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 key figure Abraham Maslow in the 1950s during the time of the humanistic movement. It was made popular in the 1950s by the process of realizing and expressing one's own capabilities and creativity.

Abraham Harold Maslow was an American psychologist who created Maslow's hierarchy of needs, a theory of psychological health predicated on fulfilling innate human needs in priority, culminating in self-actualization. Maslow was a psychology professor at Brandeis University, Brooklyn College, New School for Social Research, and Columbia University. He stressed the importance of focusing on the positive qualities in people, as opposed to treating them as a "bag of symptoms". A Review of General Psychology survey, published in 2002, ranked Maslow as the tenth most cited psychologist of the 20th century.