Motor development is an integral part of the developmental process. Understanding the organization of the sensory-motor system and its adaptations in response to environmental factors is a vital part of understanding individual development as a whole. This volume describes and discusses human motor development using longitudinal study methods, and from an interdisciplinary perspective. Researchers from a variety of different backgrounds and disciplines provide a broad-ranging analysis of human motor development, from both the practical and theoretical standpoint, in a book which will be of great interest to paediatricians, psychologists, developmental biologists, developmental psychiatrists and neurologists as well as to research scientists in these fields.