Asperger's Disorder is a milder variant of Autistic Disorder. Both Asperger's Disorder and Autistic Disorder are in fact subgroups of a larger diagnostic category. This larger category is called either Autistic Spectrum Disorders or Pervasive Developmental Disorders. In Asperger's Disorder, affected individuals are characterized by social isolation and eccentric behavior in childhood. Though grammatical, their speech is peculiar due to abnormalities of inflection and a repetitive pattern.
Clumsiness is prominent both in their articulation and gross motor behavior.
They usually have a circumscribed area of interest which usually leaves no space for more age appropriate, common interests. Some examples are cars, trains, French Literature, door knobs, hinges, cappucino, meteorology, astronomy or history.