Autism 'begins long before birth'

Scientists say they have new evidence that autism begins in the womb.

Patchy changes in the developing brain long before birth may cause symptoms of autism spectrum disorder (ASD), research suggests.

The study, in the New England Journal of Medicine, raises hopes that better understanding of the brain may improve the lives of children with autism.

It reinforces the need for early identification and treatment, says a University of California team.

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