Richard Mills, of Research Autism, said there was little evidence that a change of climate helped autism, but a "change in sensory environment is very important in reducing stress both on the child and the parents".

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Rodney Brooks of the Massachusetts Institute of Technology nudged the whole field forward in early 1990s when he showed how robots could make faster decisions by responding to sensory data from their immediate environment rather than relying on complex sets of rules.

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In a "busy" environment, I will eventually go into sensory overload and my mind will go blank.

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