The Diagnosis of Aspergers
Aspergers (AS) is one of the pervasive developmental disorders (PDD) which is a family of congenital conditions characterized by marked social impairment, communication difficulties, play and imagination deficits, and a range of repetitive behaviors or interests 1. The prototypical PDD is autism, which was first described by Leo Kanner at Johns Hopkins in 1943 2. Autism occurs in 1 out of every 1000 births 3, is a neurobiologic disorder with a strong genetic component (a 2%–5% recurrence rate in siblings, which is a 50 fold increase relative to the general population) 4, and some as yet tentative biologic markers involving brain structure (e.g., some people may have larger brains) and brain function (e.g., the typical brain specialization to recognize faces is not present) 5. Approximately 70% of people with autism have a degree of mental retardation, and the typical cognitive profile includes great variability of skills (e.g., usually higher level nonverbal problem-solving skill...