Gestalt therapy is an existential an experiential psychotherapy that focuses on the individual's experience in the present moment, the therapist-client relationship, the environmental and social contexts in which these things take place, and the self-regulating adjustments people make as a result of the overall situation. It emphasizes personal responsibility. Gestalt therapy was co-founded by Fritz Perls, Laura Perls and Paul Goodman in the 1940s–1950s.