Asperger syndrome is defined in the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV-TR) as a pervasive developmental disorder that is distinguished by a pattern of symptoms rather than a single symptom. It is characterized by impairment in social interaction, by stereotyped and restricted patterns of behavior, activities and interests, and by no clinically significant delay in cognitive development or general delay in language. Impairments must be significant, and must affect important areas of function, and the diagnosis is excluded if criteria are also met for autism.[1] Intense preoccupation with a narrow subject, one-sided verbosity, restricted prosody, and physical clumsiness are typical of the condition, but are not required for diagnosis.[2]