This systematic review synthesized current literature regarding the effect of physical activity (PA) interventions on brain structure (BS) and brain function (BF) in healthy children. This review followed the Preferred Reporting Items for Systematic Reviews protocols and used the Rayyan web for data extraction. Eleven experimental studies were…

Comments on Lewis's ideas about reconciling stage and specificity in neo-Piagetian theory in this issue. Focuses on whether general stages, domain specificity, and individual diversity are compatible from a nonlinear, dynamic perspective. Suggests that, by using catastrophe theory, intra- and interindividual diversity and domain specificity can be…

Conducted a meta-analytic review of 41 studies to explore the relation between children's aggressive behavior and hostile attribution of intent to peers. Found a significant association between hostile attribution of intent and aggressive behavior, with larger effects associated with more severe aggressive behavior, rejection by peers as a…

Describes four experiments in childhood autism used as research examples in areas of cognition and social skills. An hypothesis which attempts to connect various areas of impairment, nemely, lack of imaginative play, lack of expressive gestures, and inability to predict and understand behavior in others is explored through a specific cognitive…

To resolve tension between general stages and conceptual specificity in neo-Piagetian theory, R. Case introduced the idea of central conceptual structures. To resolve difficulties of separating developmental level and conceptual diversity, this article reconceptualizes central conceptual structures as self-organizing systems that stabilize in…

Comments on Lewis's ideas about reconciling stage and specificity in neo-Piagetian theory in this issue. Summarizes R. Case's central conceptual structure and its relation to other neo-Piagetian theories. Notes similarities between Lewis and Piaget, suggesting that differences adhere to a limited number of general laws instead of being…

Argues that assessment based on the content of a reading curriculum will not necessarily promote more effective instruction than one not so based. Focuses on reading ability, individual differences in the ability to read, instruction in reading, curriculum-based assessment of students' skill in reading, and assessment of comprehension. (RJM)

Examines a general developmental hypothesis concerned with children's understanding of perceptual experience, memory, intentions, and emotions. It is hypothesized that young children view the mind as passive in relation to the external world and regard external events as determining subjective experience, whereas older children know many ways that…

Explicit representation of relations plays some role in virtually all higher cognitive processes, but relational knowledge has seldom been investigated systematically. This paper considers how relational knowledge is involved in some tasks that have been important to cognitive development, including transitivity, the balance scale, classification…

The proposals concerning working memory outlined in this paper involve the architecture of working memory, the reasoning mechanisms that draw on it, and the ways in which working memory may develop with age. Ways of assessing task demands and children's working memory capacities are also considered. It is noted that there is long-standing evidence…

The development of cognitive representation is the main theme of three classic theories (Piaget, Bruner, Vygotsky) on how children learn concepts. Piaget considered structural change as a necessary condition for development; Bruner emphasized both internal and external function and the structural changes brought about by function; and Vygotsky…

Points out that the world of television activates, cultivates, and alters the gender schemata that children bring to the viewing situation. Finds that viewing can also promote creation of new schemata or modification of existing ones. (Author/RWB)

Children's analogical reasoning has traditionally been measured by classical four-term analogy tasks or problem-solving tasks. Current theories of analogical development and the evidence on which they are based are reviewed. It is concluded that structural views of analogical development are wrong, and knowledge-based accounts of what develops are…

This study focused on the development of policy thought, or abstract thinking about policy issues. Political thought may be described as concrete thinking about political phenomena. It includes one's knowledge of and attitude toward objects, people, and events in the political sphere. Policy thought entails the abstract manner in which one…

Examines research which suggests that children's developing knowledge about traditional gender roles has a substantial influence on how children process information pertaining to gender. Evidence also shows that as children attain gender constancy, their behaviors become especially responsive to gender-related information. (Author/RWB)