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Neuroscience

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mouse eating a cookie

CHOW TIME  When scientists used light to stimulate select nerve cells in a region of the brain called the zona incerta, mice began eating voraciously. The results suggest that the little-studied brain region may have a role in eating behavior.

fruit fly

IN THE RING  A ring of nerve cells in a fruit fly’s brain helps it to fly right — and all the other directions, depending on where the insect is trying to go.

newborn baby wearing electrodes

A GAIN ON PAIN  During painful procedures, newborns’ brains show a spike in activity that can be detected with electrodes on the scalp, a new study suggests. Monitoring such activity could one day provide an objective measurement of pain.

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