Penis/clitoris, masturbation, emotional crisis, Oedipus Complex, critical stage for moral development. The child becomes aware of anatomical sex differences, which sets in motion the conflict between erotic attraction, resentment, rivalry, jealousy and fear which Freud called the Oedipus complex (in boys) and the Electra complex (in girls). This is resolved through the process of identification, which involves the child adopting the characteristics of the same sex parent.