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Autism is a complex developmental disorder that appears in the first 3 years of life, although it is sometimes diagnosed much later. It affects the brain's normal development of social and communication skills.Common features of autism include impaired social interactions, impaired verbal and nonverbal communication, problems processing information from the senses, and restricted and repetitive patterns of behavior.The symptoms may vary from moderate to severe. Two related, milder conditions are Asperger syndrome and "pervasive development disorder not otherwise specified" (PDD-NOS).
Review Date:
2/19/2007
Review Date:
5/2/2007
Autistic behavior describes behavioral patterns similar to those seen in autism.
Review Date:
5/12/2006
Asperger syndrome is a condition marked by impaired social interactions and limited repetitive patterns of behavior. Motor milestones may be delayed and clumsiness is often observed. Asperger syndrome is very similar to or may be the same as high functioning autism (HFA).
Review Date:
6/13/2006
Childhood disintegrative disorder is a condition occurring in 3- and 4-year-olds who have developed normally to age 2. Over several months, a child with this disorder will deteriorate in intellectual, social, and language functioning from previously normal behavior.
Review Date:
6/13/2006
Stereotypic movement disorder is characterized by repetitive, non-functional motor behavior that has lasted at least 4 weeks. Certain drugs sometimes cause this condition, but symptoms last for a shorter period of time or stop when the offending medication is discontinued.
Review Date:
6/13/2006