What is Autism?

What is Autism?
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Autism Society

Autism is a neurological disorder that disrupts a child’s learning and socialization. Deriving its name from the Greek word for “self,”autism is often associated with children who seem self-absorbed and exhibit unusual behaviors. It is a spectrum disorder, meaning that any two people diagnosed with autism may have very different
symptoms and/or characteristics.

Children with the disorder range from very high-functioning (nearly indistinguishable from children who do not have autism) to profoundly impaired. Some students diagnosed with autism may have other diagnoses, such as Asperger’s Disorder or Pervasive Developmental Disorder - Not Otherwise Specified (PDD-NOS).

More information about these diagnoses can be found on the web site of the Autism Society of America
at http://www.autism-society.org.

Autism is the third most common developmental disability, following mental retardation and cerebral palsy; it is four times more prevalent in boys than in girls. The Centers for Disease Control and Prevention now estimates that one
in every 175 children born in the U.S. today will fall somewhere on the autism spectrum. It is estimated that 1,500,000 people in the U.S. today have autism.

Autism is usually diagnosed during the first three years of a child’s life. There is no medical test for autism; a diagnosis is determined by a team of professionals through observation and testing of the child, coupled with interviews with parents or guardians. This diagnostic team may include a neurologist, psychologist, developmental pediatrician, speech/language pathologist, and/or other professionals knowledgeable about autism. The team’s findings are then compared to the definitive protocol for assigning a diagnosis of autism as set forth in the DSMIV-
TR (Diagnostic and Statistical Manual for Mental Disorders - Fourth Edition Text Revision), published by the American Psychiatric Association. For a diagnosis to be made, a child must exhibit some symptoms in all of the three following categories, although the level of severity can vary greatly:

  1. Qualitative impairments in social interaction. Students with autism may have great difficulty developing peer
    relationships appropriate to their developmental level. Many may have difficulties understanding social cues or rules, participating in community or leisure activities, or relating to others.
  2. Qualitative impairments in communication. Students with autism may have difficulty understanding spoken language or reading “nonverbal” communications, such as facial expressions or gestures. Some speak in
    odd or unconventional ways.
  3. Restrictive, repetitive, and stereotyped patterns of behavior, interests, and activities. Students with autism may have unusual preoccupations, odd or repetitive motor mannerisms, and/or restricted patterns of interest that
    are abnormal in either intensity or focus. Difficulty in processing sensory input may cause some of
    these children to have unusual reactions to sounds, sights, touch, or smells.

Frequently, children with ASDs exhibit uneven development in cognitive, communications, social, adaptive, and motor skills. Sometimes significant strengths in isolated skills are coupled with significant deficits in others. Like
other children, they respond to their environment in positive and negative ways. Although autism may affect their range of responses and may make it more difficult to control how their body and mind react to everyday situations, people with ASD live normal life spans and certain associated behaviors may change or disappear over time.
Other disorders can coexist with autism, such as seizure disorders, mental retardation, or obsessive-compulsive
disorder.

Scientists and researchers are exploring a number of theories regarding the causes of autism. Unfortunately, to date, no single cause or cure has been identified.

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