What Is Autism? What is Autism Spectrum Disorder?
Autism spectrum disorder (ASD) and autism are both general terms for a group of complex disorders of brain development. These disorders are characterized, in varying degrees, by difficulties in social interaction, verbal and nonverbal communication and repetitive behaviors. They include autistic disorder, Rett syndrome, childhood disintegrative disorder, pervasive developmental disorder-not otherwise specified (PDD-NOS) and Asperger syndrome. With the May 2013 publication of the new DSM-5 diagnostic manual, these autism subtypes will be merged into one umbrella diagnosis of ASD.
For additional ASD resources, please see the Links section.