Autism spectrum disorder is a lifelong neuro-developmental disability that is part of the broader category called Pervasive Developmental Disorders. These disorders are:
- Autistic Disorder (autism)
- Asperger’s Disorder
- Pervasive Developmental Disorder – Not Otherwise Specified (PDD-NOS, also known as atypical autism)
- Rett’s Disorder
- Childhood Disintegrative Disorder
The term ‘autism spectrum disorder’ (ASD) is an umbrella term now commonly used to describe Autistic Disorder, Asperger’s Disorder and Pervasive Developmental Disorder – Not Otherwise Specified (PDD-NOS). Please refer to the table below.