Changes

:In Freudian theory, sexual energy. Each person has only a certain amount of libido that can be "cathected" and fixated onto various objects.

:Takes place during the phallic stage in Freud's developmental theory. Boys want to kill father and sleep with mother because of sexual attraction to mother; girls want to kill mother and sleep with father because of "penis envy." The crisis leads to identification with the same-sex parent and development of superego.