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 the case of the girl, this facilitates identifying with mother, who understands that, in being females, neither of them possesses a penis, and thus are not antagonists. "Dénouement"—Unresolved son–father competition for the psycho-sexual possession of the mother might result in a phallic stage fixation that leads to the boy becoming an aggressive, over-ambitious, and vain man. Therefore, the satisfactory parental handling and resolution of the Oedipus complex are most important in developing the male infantile super-ego. This is because, by identifying with a parent, the boy internalizes Morality; thereby, he chooses to comply with societal rules, rather than reflexively complying