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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 autism, cause, vaccine, children, according, studies, metallothionein, center, article, theory's, show, present, family, evidence, dysfunction, contribute, while, walsh, university, typically, twins, theory, stated, social, research, possible, piven, pfeiffer, panel, over, one, now, new, must, mt
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