Freud's Developmental Stages Freud advanced a theory of personality development that centered on the effects of the sexual pleasure drive on the individual psyche. At particular points in the developmental process, he claimed, a single body part is particularly sensitive to sexual, erotic stimulation. These erogenous zones are the mouth, the anus, and the genitals. The child's libido centers on behavior affecting the primary erogenous zone of his age; he cannot focus on the primary …showed first 75 words of 2909 total…

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