Canadian Medical Association Journal ,CMAJ • July 13, 2010; 182 (10). First published June 7, 2010; doi:10.1503/cmaj.109-3274Dr. Marshalyn Yeargin-Allsopp,
Dr. Yeargin-Allsopp's description of the diminution of autism's vast majority, those with intellectual disability, is noteworthy today as we await the commencement of the DSM-5 era and the complete elimination from any autism diagnosis of persons with intellectual disabilities. That accomplishment will be achieved by the DSM-5's New Autism Spectrum Disorder definition and diagnostic criteria which expressly exclude an ASD diagnosis in instances of general developmental delay:
The exclusion of persons with Intellectual Developmental Disorders from the New Autism Spectrum Disorder does have a precedent in the DSM-IV. It is found in the DSM-IV's Asperger's Disorder which states in Criterion E that "there is no clinically significant delay in cognitive development or in the development of age-appropriate self-help skills". And there it is "no cognitive development delay" from the DSM-IV Asperger's Disorder criteria becomes not accounted for by general developmental delay in the DSM-5's Autism Spectrum Disorder. Asperger's becomes the New Autism in DSM-5 World.
Autism Speaks has long been aware of the APA intention to remove persons with intellectual disability from consideration for autism spectrum disorder diagnoses. Autism Speaks rarely mentions intellectual disability as an autism concern. It has already been busy presenting Asperger's to the public as Autism with the promotion of the careers and influence of John Elder Robison and Alex Plank.
Autism Speaks also helped fund the Korean "autism" prevalence study of Roy Richard Grinker who has been busy recasting Asperger's as autism and who went looking for "autism" amongst Korean students who functioned well in Korea's highly structured school environments. No intellectually disabled were included amongst Grinker's findings of large numbers of previously unknown autistics. Of course Professor Grinker, the APA and "Autism Without Intellectual Disability Speaks" will have to readjust their autism prevalence numbers once the DSM-5 officially takes effect. They will have to revise their autism rates downward to reflect the removal of persons with DSM-IV Autistic Disorder and intellectual disability from the DSM-5's Autism Spectrum Disorder. Asperger's is the New Autism.