Autistic folders may have enlarged amygdala, a brain area that processes a emotions, identifies faces and regulates attention, reports Archieves of General Psychiatry. Researches compared MRI scans of 50 autistic children with 33 children without autism children with 33 children without autism at ages two and four and tested them for certain behaviourial features of autism. Autistic children have normal sized brains at birth, but towards the end of the first yesr, the amygdala begins to grow; it was on average 13 percent larger in autistic children. The findings could help diagnose and treat autism early on.

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