Development of memory depends upon changes in several mnemonic processes, which are illustrated in experiments with normal and mentally retarded adults and children. (Author/WY)

Comments on the blending by Dean, in her article in this issue, of Loewald's instinctual-affective component with the developmental models of Piaget and Vygotsky, with internalization as the pivotal concept. Suggests that Dean's synthesis mirrors development itself, as it first differentiates and then integrates the work of the three theorists.…

Focuses on the role of instinctual and affective forces in internalization, a process identified by Piaget and Vygotsky as the primary mechanism underlying the development of higher mental structures and functions. Discusses the theory of contemporary psychoanalyst Hans Loewald, who shares Piaget's and Vygotsky's emphasis on internalization but…