The Internet’s DIY brain hackers
kernelmag.dailydot.com
kernelmag.dailydot.com
"I trust a lot in my intuition,” he said. “When you start doing this kind of stuff, you start to develop intuition.” He has also experimented with biofeedback tones to achieve different brainwave states and sun gazing to stimulate and heal the mind and body."
The underlying idea is sound; deep brain stimulation, which this is sort of analogous to, is a surprising if short-lived panacea to a wide range of conditions. Applied randomly it's as likely to exacerbate a negative effect as it is to treat one, but it is generally performed by a trained neural surgeon while the patient reports on how well it's working, and it doesn't last too long anyways.
TDCS is like deep brain stimulation in that it applies a current to your brain, but the effect borders on homeopathic. It's imprecise, the charge is (happily) too weak to bring about any real change in the brain from the scalp, and I doubt it's anything more than a placebo, best case.
http://diyhpl.us/~bryan/papers2/neuro/ultrasound/Histologica...
[0] http://slatestarcodex.com/2014/03/01/searching-for-one-sided...