Autism spectrum disorder (ASD) refers to a group of developmental disabilities – including Autistic Disorder, Pervasive Developmental Disorder Not Otherwise Specified (PDDNOS), Aspergers Syndrome, Rett’s Disorder, and Child Disintegrative Disorder – that affect a person’s ability to understand what they see, hear, and otherwise sense. It is a brain disorder that impacts communication, social interaction, and behavior. Individuals with ASD typically have difficulty understanding verbal and nonverbal communication and learning appropriate ways of relating to other people, objects, and events. No two people with ASD are the same. As its name implies, ASD is a spectrum disorder that affects individuals differently and with varying degrees of severity. Additionally, ASD is often found in combination with other disabilities. ASD in found throughout all races, nationalities and social classes and it affects approximately one in every 68 births.