... the mouth is the center of pleasure. Babies obtain gratification through sucking and biting. As adults, when you bite your nails, comfort eat, etc, you are regressing to the oral stage. The anal stage occurs during the second year when toilet training begins. The ego evolves during this stage as the child vacillates between id impulses and parental demands. It focuses on potty training and the expulsion and retention of faeces. Excessive retention means the child is likely to have been potty trained too early and in adult years will lead to being excessively tidy. The phallic stage emerges at three and lasts until age five. The boy experiences the Oedipus complex; he sexually desires his mother and wants to kill his father out of jealousy. The girl develops penis envy and begins to hate her mother for not providing a penis. The girl then transfers her love to her ...

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