Autism spectrum disorders (ASDs) are a group of developmental disabilities that are caused by an abnormality in the brain.  People with ASDs tend to have problems with social and communication skills.  They are also likely to repeat certain behaviors and to not want change in their daily activities.  Many people with ASDs also have unusual ways of learning, paying attention, or reacting to different sensations. ASDs begin during childhood and last throughout a person's life.

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