Autism and Other Pervasive Developmental Disorders
Autism and other pervasive developmental disorders are brain disorders
that occurs in as many as 2 in 1,000 Americans. They typically affect the
ability to communicate, form relationships with others, and respond
appropriately to the outside world. The signs of autism usually develop by
3 years of age. The symptoms and deficits associated with autism may vary
among people with the disorder. While some individuals with autism
function at a relatively high level, with speech and intelligence intact,
others are developmentally delayed, mute, or have serious language
difficulty.
Research has made it possible to identify earlier those children who
show signs of developing autism and thus initiate early intervention. Both
psychosocial and pharmacological interventions can improve the behavioral
and cognitive functioning of children with autism. Studies to evaluate
medications such as risperidone and valproate are investigating their
effects on cognition, behavior, and development, as well as their safety
and efficacy. Emerging evidence is suggesting that certain genetic factors
may confer susceptibility to the disorder and studies are underway to
better understand this process. The prospect of acquiring basic biologic
knowledge about autism holds hope for the development of future therapies.
Information
provided by the National Institute of Mental Health