DISCLAIMER: This page is not science, it"s just some thoughts by a Dad who has done a bit of reading and is lucky enough to spend lots of time with two great kids.
[ More definitions and points of view | Asperger"s Syndrome ]
Autism (or PDD, PDD-NOS, "autism spectrum disorder")
Autism (and the related pervasive developmental disorders) is a severe developmental disorder which, left unchecked, usually progresses to developmental disability at a young age. The causes of the disorder are largely unknown; they include genetic and environmental (chemical and biological) factors, or some interaction of the two. (Many in the psychoanalytic community once believed that lack of parental nurturing was the cause, but that is perhaps the only factor we now know is not important.) Symptoms may be present from or even before birth (yes, Moms can tell), or appear gradually or suddenly after two or more years of apparently normal development. Although some related conditions such as Landau-Kleffner syndrome cause measurable changes in brain activity, in most cases the only diagnostic information is the child"s behavior. Other biological markers are sketchy: there is some evidence of altered neurotransmitter (serotonin) levels; some children show slight physical changes, such as the shape of their ears; there is a strong correlation with maleness and non-right-handedness; and there is correlation with certain genes. There is about a one in nine chance that a sibling will also have autism.
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نویسنده متن فوق: » حسن زارع ( چهارشنبه 88/11/21 :: ساعت 5:44 عصر )
