Depression Eraser

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Stimulating dopamine-releasing neurons immediately extinguishes depression in mice. MIT and Stanford University researchers recently pinpointed brain cells that could be new targets for treating depression, which affects an estimated one in 10 Americans. By stimulating these cells to deliver dopamine to other parts of the brain, the researchers were able to immediately eliminate symptoms of … Read More

An On-Off Switch for Anxiety

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An On-Off Switch for Anxiety

Researchers discover a brain circuit that can instantly dampen—or exacerbate—anxiety in mice. With the flick of a precisely placed light switch, mice can be induced to cower in a corner in fear or bravely explore their environment. The study highlights the power of optogeneticstechnology—which allows neuroscientists to control genetically engineered neurons with light—to explore the … Read More