Person-centered therapy was developed by
Carl Rogers in the 1940s and 1950s, and was brought to public awareness largely through his book
Client-centered Therapy, published in 1951. It has been recognized as one of the major
types of psychotherapy (theoretical orientations), along with
psychodynamic psychotherapy,
psychoanalysis,
classical Adlerian psychology,
cognitive behavioral therapy,
existential therapy, and others. with Rogers at pains to reassure other theorists that "the facts are always friendly". Originally called non-directive therapy, it "offered a viable, coherent alternative to Freudian psychotherapy. ... [Rogers] redefined the therapeutic relationship to be different from the Freudian authoritarian pairing." Person-centered therapy is often described as a humanistic therapy, but its main principles appear to have been established before those of humanistic psychology. Some have argued that "it does not in fact have much in common with the other established humanistic therapies" but, by the mid-1960s, Rogers accepted being categorized with other humanistic (or phenomenological-existential) psychologists in contrast to behavioral and psychoanalytic psychologists. Despite the importance of the self to person-centered theory, the theory is fundamentally organismic and holistic in nature, with the individual's unique self-concept at the center of the unique "sum total of the biochemical, physiological, perceptual, cognitive, emotional and interpersonal behavioural subsystems constituting the person". Rogers coined the term
counselling in the 1940s because, at that time, psychologists were not legally permitted to provide psychotherapy in the US. Only medical practitioners were allowed to use the term
psychotherapy to describe their work. Rogers affirmed individual personal experience as the basis and standard for living and therapeutic effect. Rogers also claimed that the therapeutic process is, in essence, composed of the accomplishments made by the
client. The client, having already progressed further along in their growth and maturation development, only progresses further with the aid of a psychologically favored environment. == The necessary and sufficient conditions ==