Explores contradictions arising from Piaget's transposition of the phylogenetic problem of the appearance of new forms to the ontogeny of knowledge. Discussion focuses on development as the organization of contents by preformed structures, on early development as a succession of representational organizations, and on concepts of structure and…

Discusses the logical discontinuity between object and personal knowledge. Proposes an extension of Piaget's subject-object equilibrium to a dialogic situation between an ego and an alter. Suggests that this structural model provides a scheme by which differences in adulthood between adaptive and maladaptive cognitive change can be clarified.…

Particular reference is made to change seen as either a discrete or a continuous process. This topic is discussed in relation to progress and modern trends in biology and physics. Additionally discussed is the development of children's understanding of the process of change in physical and biological phenomena. (Author/RH)

Presents several reconceptualizations of adult cognitive development and its relation to everyday problem solving. Argues that investigation of relations between adult cognitive development and everyday problem solving may be facilitated through causal modeling that includes task characteristics, social context, and personality and motivational…

Criticizes the distinction between lower and higher psychological processes in Vygotsky's cultural-historical theory. Shows that Vygotsky separated these processes too sharply and that his conception of lower processes as "natural" and "passive" is false. Suggests that these shortcomings can be overcome within the…

Explores implications of two cognitive development perspectives for characterizing ontogeny of causal reasoning. Reviews literature on causal reasoning in the preschool years and concludes that the hypothesis of an invariant causal scheme is only partially correct. (Author/SO)

Argues that linguistic communication allows the incorporation of individual, microsociological, and macrosociological levels of analysis into a general theory of action. (RH)

Outlines how levels of the interpretation of reality and categories of a naive theory of action that constitute these levels are differentiated and coordinated in a specific developmental sequence. Subsumed within this theoretical framework are the distinction between action on physical objects and social interaction and the distinction between…

Argues that cognitive and affective systems do not develop in parallel and that affects serve a communicative function. (RH)

Explanations for memory development have tended to focus on acquistion of general strategies and metaknowledge. Recently, emphasis has been given to the knowledge base as a whole, including general world-knowledge and domain-specific knowledge and procedures. Evidence is presented from the memory development literature showing why strategies and…