Cognitive neuropsychological research studies of people with cognitive deficits have typically been directed either at investigating methods of intervention, or at furthering our understanding of normal and impaired cognition.

This book reports on research that combines these goals, using studies that use intervention as a tool for investigating hypotheses about the functioning of the human cognitive system. The introductory chapter discusses some of the unique and more general difficulties that this approach faces, while the five reports describe intervention studies with children and...