Asperger's disorder, also called Asperger's syndrome, is a
type of pervasive developmental disorder (PDD) as defined by the American
Psychiatric Association.1 Asperger's disorder is
similar to high-functioning autism in how it affects a child's mannerisms and
socialization traits.
A distinction between Asperger's disorder
and autism is that young children with Asperger's have normal language
development, although the rhythm, pitch, and emphasis are irregular. Unlike
autism, Asperger's disorder does not delay other aspects of development. A
child usually has age-appropriate self-reliance and an interest in the world
around him or her. But as with autism, children with Asperger's disorder have
abnormal social interactions, facial expressions, and gestures.
Asperger's disorder affects males 4 to 5 times more than females.2 Its cause is unknown. More research is needed to confirm
whether Asperger's disorder is a condition that is genetically related to
autism.