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Infant stress linked to teen brain changes

Girls showed changes in brain regions that regulate emotions

The effects of a baby’s rough start can linger. An early stressful environment during a baby girl’s first year was associated with altered brain behavior and signs of anxiety in her late teens, scientists report online November 11 in Nature Neuroscience.

Although the results are preliminary, they may help reveal how negative experiences early on can sculpt the brain.

Studies in animals have pointed out how tough times in childhood can influence the brain and the animals’ behavior later in life. But it’s been hard to figure out how that process works in people, says Lawrence Price, a psychiatrist and clinical neuroscientist at Brown University in Providence, R.I. “One of the real advances of this paper is that it helps move us along on that pathway,” he says.

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