autospa (2003166) writes "Are you desperate to take your video game performance to the next level – and willing to indulge in some high-risk behavior? Hint: you’ll need a 9-volt battery and a wet sponge! Researchers in New Mexico claim that a faint electric massage to the brain improved the performances of volunteers playing the war simulator games. The electric current was produced by a device running on a 9-volt battery and delivered to the volunteers via a moistened sponge applied to their right temple."
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