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Saturday, October 7, 2017

New Tools Detect Autism Disorders Earlier in Lives

Aside from genetics, any parental contribution to the disorders is probably nil.


A comparison of the two groups revealed that, when analyzed as a group, the brains of 6-month-olds with an autistic sibling showed inefficiencies in the right auditory cortex, an area that processes speech sounds. By 12 months of age, certain neural areas critical for language, touch and self-awareness were also less efficient than those of the control group. “If your brain starts off not processing the sensory inputs efficiently, then it can’t do the proper pruning. It’s just passing on noise,” said Dr. Lewis.
The study was launched seven years ago, and by the time it was complete, the researchers knew which of the high-risk infants ended up with an autism spectrum diagnosis. (Almost 17% of the high-risk group received an autism diagnosis, compared with 1.3% of the control group.) Yet they found that the biological markers of their disorder were evident at 6 months of age.