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Neuroscience: Brain buzz

Scientists reviving a decades-old technique for brain stimulation have found that it can boost learning. So what else can be done with some wires and a nine-volt battery?

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Douglas Fox is a freelance writer in Northern California.

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Vincent Clark

Michael Nitsche

Felipe Fregni

Allan Snyder's Centre for the Mind

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Fox, D. Neuroscience: Brain buzz. Nature 472, 156–159 (2011).

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