How To Electrify Your Brain To Be Smarter With a 9-Volt Battery (Updated)

Transcranial direct current stimulation can make your brain work better. DARPA proved it can make you better at video games, the U.S. Air Force has shown it cuts drone remote-pilot training in half, and Harvard researchers have used it to treat depression. So what is this magical device that powerfully manipulates… » 2/06/12 9:20pm 2/06/12 9:20pm