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The Oedipus Complex is associated with the phallic stage of psychosexual development. In this stage the primary erogenous zone is the genital zone. This stage is also when children, according to Freud, become aware of the genital differences between a male and a female. The Oedipus Complex occurs in this stage and refers to child’s unconscious desire for the opposite-sex parent. According to Freud, this is necessary and it is resolved by child’s identification with the same-sex parent.