The Types of Autism Spectrum Disorders

Autism Spectrum pic
Autism Spectrum

With a doctorate in business administration, Sean Southland is an experienced entrepreneur who founded the neurobiological research company Performance Research Sciences. Also a committed philanthropist, Dr. Sean Southland has a strong interest in therapy and life skills development for children with Autism spectrum disorders and co-founded the IDEA Foundation, which aims to help such children.

A spectrum of serious neuro-developmental disorders, the autism spectrum consists of disorders that affect the ability to communicate and interact socially. The word spectrum is used along with autism to recognize the range of impairments and issues that can arise due to the disorder. The autism spectrum is now considered a single disorder by the American Psychiatric Association and includes three disorders within it.

Also known as high intelligence autism, Asperger’s syndrome is the mildest form of autism and causes the individual to be obsessed with a single subject while showing social impairment otherwise. The majority of autism cases fall into Pervasive Developmental Disorder (PDD), which is more severe than Asperger’s. PDD includes a range of conditions and impairments but usually has a later onset than the other types of autism.

Lastly, autistic disorder is the most severe, including serious social and communication issues and sometimes including intellectual disabilities and seizures. For additional information on the types of autism, visit