Electra complex the 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). Sigmund Freud developed the female aspects of the sexual development theory—describing the psychodynamics of a girl’s sexual competition with her mother for sexual possession of the father—as the feminine Oedipus attitude and the negative Oedipus complex; yet it was his collaborator Carl Jung who coined the term Electra complex in 1913. Freud rejected Jung's term as psychoanalytically inaccurate: "that what we have said about the Oedipus complex applies
Oedipus complex not such a post-Lacanian interpretation "stretches the Oedipus complex to a point where it almost doesn't look like Freud's any more". Parent-child and sibling-sibling incestuous unions are almost universally forbidden. An explanation for this incest taboo is that rather than instinctual sexual desire, there is instinctual sexual aversion against these unions (See Westermarck effect). Steven Pinker wrote that "The idea that boys want to sleep with their mothers strikes most men as the silliest thing they have ever heard. Obviously, it did not seem so to Freud, who wrote that as a boy he once had an erotic reaction to