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Teens who experiment with drugs have differently wired brain- new study

Why do some teenagers start smoking or experimenting with drugs-while others don’t?

In the largest imaging study of the human brain ever conducted-involving 1,896 14-year-olds-scientists have discovered a number of previously unknown networks that go a long way toward an answer.

Robert Whelan and Hugh Garavan of the University of Vermont, along with a large group of international colleagues, report that differences in these networks provide strong evidence that some teenagers are at higher risk for drug and alcohol experimentation-simply because their brains work differently, making them more impulsive.

Their findings are presented in the journal Nature Neuroscience, published online April 29, 2012.

This discovery helps answer a long-standing chicken-or-egg question about whether certain brain patterns come before drug use-or are caused by it.

via Scientists discover number of unknown brain networks linked with teen drug abuse.

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