How can somebody (without access to a lab) practically implement that technique?
The hardware is pretty cheap.
Relevant link from just yesterday: http://hackaday.com/2013/05/28/shocking-your-brain-and-making-yourself-smarter/ :).
The hardware is pretty cheap.
Relevant link from just yesterday: http://hackaday.com/2013/05/28/shocking-your-brain-and-making-yourself-smarter/ :).