Autism may involve disordered white matter in the brain

It's still unclear what's different in the brains of people with autism spectrum disorders, but evidence from genetic and cell studies points to abnormalities in how brain cells, connect to each other. A new study now provides visual evidence associating autism with a disorganized structure of brain connections, as well as defects in myelin -- the fatty, insulating coating that helps nerve fibers conduct signals and that makes up the brain's white matter.

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