How electrical brain stimulation can change the way we think

After my brain was jolted, says Sally Adee, I had a near-spiritual experience

"Transcranial direct current stimulation"
(Image credit: Adrianna Williams/Corbis)

HAVE YOU EVER wanted to take a vacation from your own head? You could do it easily enough with liberal applications of alcohol or hallucinogens, but that's not the kind of vacation I'm talking about. What if you could take a very specific vacation only from the stuff that makes it painful to be you: the sneering inner monologue that insists you're not capable enough or smart enough or pretty enough, or whatever hideous narrative rides you. Now that would be a vacation. You'd still be you, but you'd be able to navigate the world without the emotional baggage that now drags on your every decision. Can you imagine what that would feel like?

Late last year, I got the chance to find out, in the course of investigating a story for New Scientist about how researchers are using neurofeedback and electrical brain stimulation to accelerate learning. What I found was that electricity might be the most powerful drug I've ever used in my life.

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