A clear and comprehensive account of how genetic abnormalities, neurobiology, and neuropsychology work together to manifest cognitive-behavioral dysfunction. The authors review the current status of research in autosomal disorders that produce cognitive-behavioral dysfunction and syndromal and nonsyndromal disorders that produce mental retardation. Comprehensive and up-to-date, Genetics and Genomics of Neurobehavioral Disorders integrates the molecular, genomic, neuropsychological, and neurobehavioral factors that produce learning disabilities and mental retardation into a coherent framework for the understanding and assessment of neurobehavioral disorders.