APA Dictionary of Psychology

group therapy in which basic psychoanalytic concepts and methods, such as free association, analysis of resistances and defenses, and dream analysis, are used in modified form, with the assumption that group members will manifest transference to each other as well as to the therapist, allowing multiple transferences to be explored and analyzed. The most prominent exponent of this therapy was British psychoanalyst Wilfred Bion (1897–1979).