Electra complex of "Mother" develops the super-ego as the girl establishes a discrete sexual identity (ego). Without a penis, the girl cannot sexually possess her mother, as the infantile id demands. Consequently, the girl redirects her desire for sexual union upon her father, and thus progresses to heterosexual femininity, which culminates in bearing a child who replaces the absent penis. Moreover, after the phallic stage, the girl’s psychosexual development includes transferring her primary erogenous zone from the infantile clitoris to the adult vagina. Freud thus considered the feminine Oedipus attitude ("Electra complex") to be more emotionally intense than the Oedipal conflict of
Oedipus complex infant boy internalizes the familial rules of his father. In contrast, in the early 1920s, using the term "pre-Oedipal", Otto Rank proposed that a boy's powerful mother was the source of the super-ego, in the course of normal psychosexual development. Rank's theoretic conflict with Freud excluded him from the Freudian inner circle; nonetheless, he later developed the psychodynamic Object relations theory in 1925. Whereas Freud proposed that father (the paternal phallus) was central to infantile and adult psychosexual development, Melanie Klein concentrated upon the early maternal relationship, proposing that Oedipal manifestations are perceptible in the first year of life, the