On the basis of his early clinical work, Freud had postulated that unconscious memories of sexual molestation in early childhood were a necessary precondition for the psychoneuroses (hysteria and obsessional neurosis), a formulation now known as Freud's seduction theory. In the light of his self-analysis, Freud abandoned the theory that every neurosis can be traced back to the effects of infantile sexual abuse, now arguing that infantile sexual scenarios still had a causative function, but it did not matter whether they were real or imagined and that in either case they became pathogenic only when acting as repressed memories.