Brain stimulation alters depressive symptoms in mice

Findings may point the way toward treatment in people

By Laura Sanders, 13:44 PM December 12, 2012

Signs of depression can be turned on and off in mice with the flip of a switch. Activating or silencing the behavior of certain brain cells with laser light causes the animals to change their depressive behavior, two new studies find.

Although the experiments were done in rodents, the results have direct relevance to human depression, says neurologist Helen Mayberg of the Emory University School of Medicine in Atlanta. The new work may point out places in the human brain that doctors can s...

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