Oedipus complex desire (libido) for mother, and aggression towards father, student–collaborator Carl Jung counter-proposed that girls experienced desire for father and aggression towards mother via the Electra complex—derived 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, her father (cf. "Electra", by Sophocles). Moreover, because it is native to Freudian psychology, orthodox Jungian psychology uses the term "Oedipus complex" only to denote a boy's psychosexual development. In classical Freudian psychology the super-ego, "the heir to the Oedipus complex", is formed as the
Oedipus complex ideal of the individual and they strive to take on their knowledge, skills, or insights. In "Some Reflections on Schoolboy Psychology" (1914), Freud writes: The Oedipus complex, in narcissistic terms, represents that an individual can lose the ability to take a parental-substitute into his ego ideal without ambivalence. Once the individual has ambivalent relations with parental-substitutes, he will enter into the triangulating castration complex. In the castration complex the individual becomes rivalrous with parental-substitutes and this will be the point of regression. In "Psycho-analytic notes on an autobiographical account of a case of paranoia (Dementia paranoides)" (1911), Freud writes that