Examined reasoning in normal, autistic, and deaf individuals. Found that deaf individuals who grow up in hearing homes without fluent signers show selective impairments in theory of mind similar to those of autistic individuals. Results suggest that conversational differences in the language children hear accounts for distinctive patterns of…

Focuses on three main issues emerging from studies of conceptual development: (1) young children's naive theories of the world; (2) how innate constraints in conceptual development work; and (3) how innate and sociocultural constraints are integrated. Maintains that early development of core domains of thought (naive psychology, physics, and…

Explores possible influences on children's early development that originate with parents, grandparents, and even more distant family relations. Explains how these transgenerational influences may provide deliberately articulated strategies for child-rearing or may represent unstated, background values that have unconsciously been incorporated into…

Discusses research results that demonstrate that nonlinguistic symbolic deficits of language-impaired children may actually reflect resource allocation constraints and cross-modality deficits. Discusses implications of studies that contrast symbolic action development in normally developing children with that in children with specific language…

Uses clinical case studies showing autistic children's fascination with and understanding of machines, family studies focusing on occupations of fathers and grandfathers of children with autism or Asperger Syndrome, and experimental evidence using picture-sequencing methods to identify physical or intentional causality to show that children with…

Offers an organizational perspective designed to illuminate processes of symbolic development in both normal and abnormal populations. Focuses on the symbolic system of Down Syndrome children. Data support the claim that the symbolic system of these children is intact. (RWB)

Presents a model for understanding children's formation of schemas of self, other, and how self and other do and should communicate emotion. Attributes important roles to families' tendencies to display or not display emotion and to their rules regarding desirability and importance of communicating emotion. Notes that child characteristics and…

Proposes the use of a distancing strategy model as an approach to studying the social genesis of representational competence in children. Explains how the model describes teaching strategies that make cognitive demands on children. (HOD)

Suggests that variations in the quality and type of infant care, in institutional and other settings in different cultures and social classes, can have influences on the long-term development of the child's rate, level, and type of cognitive development. (HOD)