Controversies in autism

There is considerable disagreement over the exact nature of autism, however it is generally considered to be a neurodevelopmental condition which manifests itself in markedly abnormal social interaction, communication ability, patterns of interests,lack of imagination, particularly evident in pretend play and other patterns of behavior. It encompasses a wide range of atypical conditions, none of which is well understood. Although there are common and specific physical conditions co-morbid to, perhaps arguably exacerbating the severity of some people's autism spectrum disorder, not all people diagnosed with autism spectrum disorders experience these.
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