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psychosexual development  generally, the development of the psychological aspects of sexuality from birth to maturity.
  In psychoanalytic theory, the development of object relations has five stages: the oral stage from birth to 2 years, the anal stage from 2 to 4 years, the phallic stage from 4 to 6 years, the latency stage from 6 years until puberty, and the genital stage from puberty onward; see also sexual development.




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