In 1938 Lacan relates the origin of psychosis to an exclusion of the father from the family structure thereby reducing this structure to a mother-child relationship [REF].
Lacan uses the Freudian term, "Verwerfung", which the Standard Edition translates as "repudiation", as a specific defence mechanism different from repression, "Verdrangung", in which "the ego rejects the incompatible idea together with its affect and behaves as if the idea has never occurred to the ego at all."[REF]