Sports-related tool use abilities in children were investigated within a neo-Piagetian framework of development. The object was to establish whether development in the motor domain proceeds in a "stage-like" fashion. A model was developed which suggested how general and precise structural changes might manifest themselves in the sub-domain of tool…

This book presents a comprehensive and detailed theory of early human development based on the principles of dynamic systems theory. It raises fundamental questions about prevailing assumptions in the field and proposes a new theory of the development of cognition and action, unifying recent advances in dynamic systems theory with current research…

This report describes the activities, findings, and conclusions of a committee that examined the potential value of techniques proposed to enhance human performance. Chapter 1 provides the context for the study and the Army's interest in enhancing performance, characterizes particular techniques, and introduces general issues in evaluating them.…