Carl Rogers
Starting in the 1950s, two main orientations evolved independently in response to behaviorism—cognitivism and existential-humanistic therapy. The humanistic movement largely developed from both the Existential theories of writers like Rollo May and Viktor Frankl (a less well known figure Eugene Heimler) and the Person-centered psychotherapy of Carl Rogers. These orientations all focused less on the unconscious and more on promoting positive, holistic change through the development of a supportive, genuine, and empathic therapeutic relationship. Rollo May, Carl Rogers, and Irvin Yalom acknowledge the influence of Otto Rank (1884-1939), Freud's acolyte, then critic.