by Christopher Mims, Technology Review
It turns out that one of the ways you can speed up a microprocessor — shoving more current into it — also works on the human brain. The technique is called Transcranial Direct Stimulation, and while bioethicists are debating whether or not it’s ethical to use it to enhance learning in children, hobbyists have figure out how to try it out at home. Think of it as the new Adderrall — without, apparently, the side effects.
http://www.technologyreview.com/blog/mimssbits/27636/?p1=blogs
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