As the name implies, the technique involves electrical currents flowing through electrodes in random pulses, activating neurons in multiple brain areas. (scientificamerican.com)
If it was learned, you would expect it to involve multiple brain areas, and those could vary between individuals. (newscientist.com)
BDNF levels have also been shown to be reduced in the brains of individuals with Rett syndrome and in multiple brain areas of Mecp2 - deficient mice. (sciencedaily.com)