For those of us who were deeply interested in the controversy involving the proposed elimination of Asperger’s Disorder (AD) form the DSM-5, the article by Luke Tsai (Tsai
2013) is of much interest. He impressively reviewed 128 publications that addressed the issue of whether or not AD was quantitatively or qualitatively different than Autistic Disorder or High Functioning Autism. The opinion that it did not was an important part of the rationale that the Workgroup of the American Psychiatric Association put forth which led to the elimination of all the subgroups of autistic disorder including AD. …