The document provides information about autism spectrum disorders (ASDs). It states that ASDs are a group of developmental disabilities that can cause significant social, communication, and behavioral challenges, and that people with ASDs process information differently in their brains than others. It describes ASDs as "spectrum disorders" that affect each person differently in symptoms that can range from mild to severe. It outlines the three main types of ASDs: Autistic Disorder, Asperger Syndrome, and Pervasive Developmental Disorder-Not Otherwise Specified. It notes some common signs and symptoms, including lack of response to name or lack of pretend play.