Researchers find 'switch' for brain's pleasure pathway

Amid reports that a drug used to treat Parkinson's disease has caused some patients to become addicted to gambling and sex, University of Pittsburgh researchers have published a study that sheds light on what may have gone wrong.

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<p><a href="http://www.physorg.com/news12026.html">Researchers find 'switch' for brain's pleasure pathway</a></p> <p>Amid reports that a drug used to treat Parkinson's disease has caused some patients to become addicted to gambling and sex, University of Pittsburgh researchers have published a study that sheds light on what may have gone wrong.</p>