This book is divided into sections. Each section is devoted to a particular issue in Motor Development and comprises two or more contributions. The order of presentation mirrors the order of presentation at the Institute and thus is not entirely fortuitous! Nevertheless, it does not reflect any value judgement on the part of the editors as to the importance of anyone issue in comparison to others addressed in the book. This volume is to be seen as a companion volume to 'Themes in Moto!' Development' in which the more specific topics presented during the Institute are published. Together, the two volumes provide both a general and theme specific approach to this expanding field of knowledge. XI PREFACE Books and conferences, on what in North America is euphemistically termed motor development, have been few and far between in the past 25 years. This is not to say that the study of how children acquire and develop motor skills has not been a subject on which scientists have focused their attention. In the United States in the 1930's and 1940's, Bayley (1935) and Gesell and Amatruda (1947) described and scaled the rates at which young children acquired motor skills. In Europe, the development of childrens' motor behaviour was of theoretical interest to Piaget (1952).

The advances of basic sciences combined with the perspectives of developmental neurology have recently modified the traditional outlook on the evolution of motor behaviour. The maturation of neuro-anatomic structures is studied nowadays as just one facet of a complex process: the various elements of innate global patterns, the acquisition of antigravitary schemes as well as manipulative and praxic skills, control of posture and gait, ocular motility and motricity, converge to create the present picture of a continuous adaptive interaction between the child's genotype and its environment. This book stimulates the debate and the exchange of concepts between researchers and clinical specialists.

The term Developmental Coordination Disorder (DCD) is used to describe a group of children who have difficulty. with tasks involving movement such that it interferes with their daily living or academic progress. As with other developmental disorders such as autistic spectrum disorder, attention deficit disorder and dyslexia, DCD is now a prominent concern of both researchers and practitioners. This text is aimed at both researchers and professionals who work in a practical manner with the condition and includes professionals in health, occupational therapists, physiotherapists, health visitors, paediatricians, and - in the educational field - teachers and others who are in daily contact with the children - their parents. The essence of the text is that work with children should be guided by research evidence driving the clinical practice which in turn raisies more questions for research. The authors in this text have both experience in research and are engaged in the day-to-day clinical work with children and bring both of these to bear in the chapters they have written.

This volume contains a number of contributions, which concern basic issues in the field of brain-behavioural development in the human, especially with regard to the young child. They have been written by distinguished scientists, active in this field, who have all been participating in an Erasmus teachers exchange program, entitled 'Biopsychology of Development' (ICP-NL-3026/14). This volume is the product of this cooperation. The book is intended for scientists in this and related fields as well as for graduate students and advanced undergraduates, as a means of updating their knowledge about human brain-behaviour development. It offers a contemporary review, methodologically and theoretically, of some basic issues in early human brain-behaviour development. Attention is paid to normal development and also to deviance as exemplified by discussions on child abuse and on early development of preterms and children of deaf mothers. For the title of the book we have choosen for the term 'Developmental Psychology' with as a subtitle 'biopsychological perspectives' in order to express our interest in the basic requirements in the organism for an optimal adaptation during ontogeny as well as in the mechanisms underlying maladaptive behaviour. The term may indicate that we are not just focusing on 'higher brain functions' which would be suggested by the term 'Developmental Neuropsychology' . Further, it is meant to express our interest in the integrated study of normal and deviant development, without a particular focus on abnormality, which would be suggested by the term 'Developmental Psychopathology'.

This book is divided into sections. Each section is devoted to a particular issue in Motor Development and comprises two or more contributions. The order of presentation mirrors the order of presentation at the Institute and thus is not entirely fortuitous! Nevertheless, it does not reflect any value judgement on the part of the editors as to the importance of anyone issue in comparison to others addressed in the book. This volume is to be seen as a companion volume to 'Themes in Moto!' Development' in which the more specific topics presented during the Institute are published. Together, the two volumes provide both a general and theme specific approach to this expanding field of knowledge. XI PREFACE Books and conferences, on what in North America is euphemistically termed motor development, have been few and far between in the past 25 years. This is not to say that the study of how children acquire and develop motor skills has not been a subject on which scientists have focused their attention. In the United States in the 1930's and 1940's, Bayley (1935) and Gesell and Amatruda (1947) described and scaled the rates at which young children acquired motor skills. In Europe, the development of childrens' motor behaviour was of theoretical interest to Piaget (1952).