Electra complex classical psychoanalytic theory, the child's identification with the same-sex parent is the successful resolution of the Electra complex and of the Oedipus complex; his and her key psychological experience to developing a mature sexual role and identity. Sigmund Freud instead proposed that girls and boys resolved their complexes differently—she via penis envy, he via castration anxiety; and that unsuccessful resolutions might lead to neurosis. Hence, women and men who are fixated in the Electra and Oedipal stages of their psychosexual development might be considered "father-fixated" and "mother-fixated". As a psychoanalytic term for daughter–mother psychosexual conflict, the Electra complex derives from
Oedipus complex watching his mother dressing. Of note is that Amalia Nathansohn Freud was relatively young during Freud's childhood and thus of reproductive age, and Freud having a wet-nurse, may not have experienced the early intimacy that would have tipped off his perceptual system that Mrs. Freud was his mother." Some contemporary psychoanalysts agree with the idea of the Oedipus complex to varying degrees; Hans Keller proposed it is so "at least in Western societies"; and others consider that ethnologists already have established its temporal and geographic universality. Nonetheless, few psychoanalysts disagree that the "child then entered an Oedipal phase ... [which]