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Electrical brain stimulation won't help you be a genius
Far from making you smarter, electrical stimulation of the brain\'s cells while solving challenging tasks can lead to mental overload, warn researchers. The researchers wanted to test whether a treatment that sends a very weak electrical current through the skull to the outer layers of the brain, so-called transcranial direct current stimulation (tDCS),
​London: Far from making you smarter, electrical stimulation of the brain's cells while solving challenging tasks can lead to mental overload, warn researchers. The researchers wanted to test whether a treatment that sends a very weak electrical current through the skull to the outer layers of the brain, so-called transcranial direct current stimulation (tDCS),
can actually make us smarter. The tasks for the participants were divided into three levels -- simple, medium and difficult. The researchers found no effect of stimulation when participants performed the simple and medium tasks, yet they found a large negative effect on the most difficult tasks.
"tDCS had a disruptive effect only on the most difficult tasks that demanded a lot of concentration," said one of the lead researchers, James Roe from the University of Oslo in Norway.
