I actually wrote about tDCS, back when the University of New Mexico published some findings back in April 2011: http://www.extremetech.com/extreme/84232-boost-y

I actually wrote about tDCS, back when the University of New Mexico published some findings back in April 2011: http://www.extremetech.com/extreme/84232-boost-your-brains-power-with-a-9volt-battery-and-some-wet-sponges http://www.extremetech.com/extreme/84232-boost-your-brains-p...