 Nancy Chodorow (1978; 1995) has criticised social learning theory as too simplistic to explain gender differences (see also Deaux &amp; Major 1990; Gatens 1996). Instead, she holds that gender is a matter of having feminine and masculine personalities that develop in early infancy as responses to prevalent parenting practices. In particular, gendered personalities develop because women tend to be the primary caretakers of small children. Chodorow holds that because mothers (or other prominent females) tend to care for infants, infant male and female psychic development differs. Crudely put: the mother-daughter relationship differs from the mother-son relationship because mothers are more likely to identify with their daughters than their sons. This unconsciously prompts the mother to encourage her son to psychologically individuate himself from her thereby prompting him to develop well defined and rigid ego boundaries. However, the mother unconsciously discourages the daughter from individuating herself thereby prompting the daughter to develop flexible and blurry ego boundaries. Childhood gender socialisation further builds on and reinforces these unconsciously developed ego boundaries finally producing feminine and masculine persons (1995, 202–206). This perspective has its roots in Freudian psychoanalytic theory, although Chodorow’s approach differs in many ways from Freud’s.