Specialists in these disorders, as well as genetics, pharmacology, pathophysiology, neurology, neuroimaging, and other fields, from North America, Europe, and Japan, cover the history of autism; assessment; Asperger's syndrome, pervasive developmental disorder not otherwise specified,
childhood disintegrative disorder, and Rett syndrome; symptoms; causes; neuroanatomy and imaging; comorbidities; the role of the immune system; and traditional and alternative treatment approaches, including medication, complementary and alternative therapies, and behavioral, educational, and psychosocial treatments.