Genetic changes are almost certainly behind many cases of autism, and the latest research suggests that some of those alterations may be contributing to more densely connected networks of brain nerves. A highly interconnected brain could mean that signals zooming from sensory nerves to other networks become too overwhelming to parse apart and process, which researchers believe is a hallmark of the autistic brain. And in a study published in JAMA Psychiatry, Stanford University researchers report that this pattern of hyperconnectivity in some brain areas could provide a fingerprint for autism that helps doctors to recognize the condition at its earliest stages
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