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
Psychosexual development the Oedipal complex as universal and essential to human psychologic development. The anthropologist Bronisław Malinowski's studies of the Trobriand islanders challenged the Freudian proposal that psychosexual development (e.g. the Oedipus complex) was universal. He reported that in the insular matriarchal society of the Trobriand, boys are disciplined by their maternal uncles, not their fathers; impartial, avuncular discipline. In "Sex and Repression in Savage Society" (1927), Malinowski reported that boys dreamed of feared uncles, not of beloved fathers, thus, power — not sexual jealousy — is the source of Oedipal conflict in such non–Western societies. In "Human Behavior in Global Perspective: