The syndrome of nonverbal learning disabilities (NLD) is now widely regarded as a subtype of learning disabilities whose neuropsychological assets and deficits have predictable academic and psychosocial outcomes. This volume is the first systematic attempt to bring together evidence that bears upon the white matter model, which was designed to encompass its complex manifestations, and the neuropsychological underpinnings of the NLD syndrome. Covering a range of pediatric neurological diseases and disorders relevant to the applicability of the model, chapters also illuminate the neuropsychophysiological elements of the model. Dimensions relevant to both assessment and treatment are raised in many sections of the work, as are suggestions for future research. This book will be of value to neuropsychologists, psychologists, psychiatrists, and pediatricians treating children with learning disabilities. It also serves as a text for graduate courses in neuropsychology and learning disabilities.