Scientists find new evidence in search for autism cause

Aired: 3/27/2014 | 0:06:28 | Clip
As the U.S. government increases its estimate of the prevalence of autism to being one in every 68 children, scientists have announced new research that shows there may be a common disruption in parts of the brain essential to emotions, communication and social function, beginning during pregnancy. Judy Woodruff learns more from Eric Courchesne of University of California, San Diego.

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