The brains of children who have autism spectrum disorder are larger than those of other children, a difference that seems to arise before they are 2 years old, according to a new study.In 2005, researchers from the University of North Carolina at Chapel Hill found that 2-year-old children with autism had brains up to 10 percent larger than other children of the same age. This new study reveals that the children with enlarged brains at age 2 continued to have enlarged brains at ages 4 and 5, but by no more than the amount at age 2.
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