Psychosexual development character Oedipus, who unwittingly killed his father, Laius, and sexually possessed his mother, Jocasta. Analogously, in the phallic stage, a girl's decisive psychosexual experience is the Electra complex, her daughter–mother competition for psychosexual possession of father. This psychological complex derives from the 5th-century BC Greek mythologic character Electra, who plotted matricidal revenge with Orestes, her brother, against Clytemnestra, their mother, and Aegisthus, their stepfather, for their murder of Agamemnon, their father, (cf. "Electra", by Sophocles). Initially, Freud equally applied the Oedipus complex to the psychosexual development of boys and girls, but later developed the female aspects of the theory as
Oedipus complex difference; the other main character in the Oedipal drama becomes Tiresias (the false hypothesis erected against anxiety about a new theory)". Resultantly, "Bion regarded the central crime of Oedipus as his insistence on knowing the truth at all costs". From the postmodern perspective, Jacques Lacan argued against removing the Oedipus complex from the center of psychosexual developmental experience. He considered "the Oedipus complex—in so far as we continue to recognize it as covering the whole field of our experience with its signification ... [that] superimposes the kingdom of culture" upon the person, marking his or her introduction to symbolic order.