Oct 31, · Signs and symptoms of adult autism An autistic adult may get better access to services and support if they receive a diagnosis. Autistic people typically find aspects of Author: Jayne Leonard. Jan 09, · Autism is now grouped with other neurodevelopmental disorders under the designation, Autism Spectrum Disorder or ASD. This category includes Aspergers Syndrome and pervasive developmental disorder.“Spectrum” is used to denote the wide range of symptoms, skills and impairment found among ASDs. The range includes severely disabled ASDs who need assistance in living, to .