What generates pessimistic mood?

New York, Aug 12 (IANS) Scientists have identified a brain region that could generate pessimistic moods in disorders such as anxiety or depression that leads people to focus more on the possible downside than the potential benefit in a stressful situation.

In a study tested on animals, researchers at the Massachusetts Institute of Technology (MIT) have found that stimulating caudate nucleus -- a brain region linked to emotional decision-making
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