Even though Asperger's syndrome does appear to merge into the normal continuum, there are many cases in whom the problems are so marked that the suggestion of a distinct pathology seems a more plausible explanation than a variant of normality.As to the relationship between schizoid personality disorder and Asperger's syndrome, Wing writes:The lack of empathy, single-mindedness, odd communication, social isolation and oversensitivity of people with Asperger's syndrome are features that are also included in the definitions of schizoid personality …
