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Autism Spectrum Disorder (ASD) or autism is a developmental disability considered the result of a neurological condition affecting normal brain function, development and social interactions. Children and adults with autism find it difficult or impossible to relate to other people in a meaningful way and may show restrictive and/or repetitive patterns of behavior or body movements. While great strides are being made, there is no known cause, or a known singular effective treatment for autism.
View our Autism State Profiles for a state-of-the-state report of autism services in the 50 states and the District of Columbia.
There are five developmental disorders that fall under the Autism Spectrum Disorder umbrella and are defined by challenges in three areas: social skills, communication, and behaviors and/or interests.
Autistic Disorder -- occurs in males four times more than females and involves moderate to severe impairments in communication, socialization and behavior.
Asperger's Syndrome -- sometimes considered a milder form of autism, Asperger’s is typically diagnosed later in life than other disorders on the spectrum. People with Asperger's syndrome usually function in the average to above average intelligence range and have no delays in language skills, but often struggle with social skills and restrictive and repetitive behavior.
Rett Syndrome -- diagnosed primarily in females who exhibit typical development until approximately five to 30 months when children with Rett syndrome begin to regress, especially in terms of motor skills and loss of abilities in other areas. A key indicator of Rett syndrome is the appearance of repetitive, meaningless movements or gestures.
Childhood Disintegrative Disorder -- involves a significant regression in skills that have previously been acquired, and deficits in communication, socialization and/or restrictive and repetitive behavior.
Pervasive Developmental Disorder Not Otherwise Specified (PDD-NOS) -- includes children that do not fully meet the criteria for the other specific disorders or those that do not have the degree of impairment associated with those disorders.
People with autism have challenges in the areas of communication, socialization and restricted/repetitive behaviors. A few examples:
There is no single behavior that is always typical of autism or any of the autism spectrum disorders. Learn about the signs and symptoms.
There is Hope
Autism is a baffling, life-long disorder. And while there is no cause or cure, nor a known singular effective treatment, it is treatable. People with autism -- at any age -- can make significant progress through therapy and treatments, and can lead meaningful and productive lives.
However, experts agree that early diagnosis and early intervention are critical - because the earlier people with autism get help, the better their outcomes will be in the future.
Did you Know?
The annual cost of providing services for people with autism is $90 million, in 10 years that number is projected to be $200 - 400 billion. With early diagnosis and intervention, the overall cost of treatment can be reduced by two-thirds over an individual with autism’s lifetime.
London School of Economics Study, 2001