[1] The associations historically also had different attitudes towards theoretical schools within psychoanalysis such as Kleinian or Lacanian approaches.
Among the largest are the schools of Jungian psychoanalysis or analytic psychology, based on the works of Freud's early colleague and one-time protege Carl Gustav Jung.
Another, particularly prominent in Europe and Latin America, is Lacanian psychoanalysis, based on the work of the French psychoanalyst Jacques Lacan.
[6][7] Consequently, Jungian and Lacanian societies and institutes are not listed here unless they are also associated with either APsaA or IPA.
Some began as independent study groups or as sponsored affiliates of more established psychoanalytic institutes or societies in other cities.