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What_Causes_Autism
2013-11-13 来源: 类别: 更多范文
What Causes Autism
What Causes Autism'
For Those who don't know, Autism is a complex developmental disability that
typically appears during the first three years of life. It impacts the normal development of
the brain in the areas of social interaction and communication skills. Children and adults
with autism typically have difficulties in verbal and non-verbal communication, and
social interactions. The disorder makes it hard for them to communicate with others and
relate to the outside world. In some cases, aggressive and/or self-injurious behavior may
be present. Persons with autism may exhibit repeated body movements (hand flapping,
rocking), unusual responses to people or attachments to objects and resistance to changes
in routines. Individuals may also experience sensitivities in the five senses of sight,
hearing, touch, smell, and taste.
Unfortunately, their is very little known about the cause(s) of autism. One theory,
according to the Pfeiffer Treatment Center, is that autism may be caused by a defect in
metal metobolism that impairs the development of the brain and can result in
hypersensitivity to toxic substances. According to William J. Walsh, Ph.D., biochemist
and chief scientist of the Pfeiffer Center, Naperville, Illinois, and Anjum Usman, M.D., a
physician
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