2017 Volume 57 Issue 1 Pages 19-26
Autism spectrum disorder (ASD) is a neurodevelopment disorder appearing in infancy, characterized by qualitative deficits in social interaction and communication ability, and restricted and repetitive behavior as the primary symptoms. The alteration from DSM-Ⅳ to DSM-5 is a change from a category of pervasive developmental disorders (PDDs) including several subcategories, to a unitary concept of ASD with no subcategories. Recently, the interest and demand to ASD have been increasing, but it cannot be said that enough care has been carried out. In this report, the change of concept, diagnoses and clinical characteristics, treatments, course and prognosis, and an understanding of individualities in ASD were discussed.