This is a volume in the Handbook of Clinical Neurology (Series Editors: Michael J. Aminoff, Department of Neurology, University of California, San Francisco, USA; François Boller, National Institutes of Health, Bethesda, USA; Dick F. Swaab, Netherlands Institute for Neuroscience, Amsterdam, the Netherlands) covering neuropsychology and behaviour. A volume in the Handbook of Clinical Neurology series, which has an unparalleled reputation as the world's most comprehensive source of information in neurology. International list of contributors including the leading workers in the field. Describes the advances which have occurred in clinical neurology and the neurosciences, their impact on the understanding of neurological disorders and on patient care.