This book is a comprehensive overview of neurological research on autism. It address such questions as: Is autism a single disorder or a syndrome of multiple diseases? How are autism and Asperger syndrome related? Is autism increasing in prevalence, or is it just that we diagnose it more often? There is an in-depth discussion of the neurological signs and symptoms that can be found in children with autism and Asperger syndrome; these include abnormal cranial circumference, epilepsy, changes of muscle tone, stereotypes and mutism. The Appendix includes a form specifically designed for the neurological examination of patients with autism and Asperger syndrome. The book goes to discuss treatments and their relative success rates, including alternative therapies.