Is Neurostim Becoming a Reality?

There is a current mass market for cognitive enhancement products — and arguments about the black market potential for neurostim. The same neurostim device that uses electric impulses from a brain implant to treat people with Parkinson's Disease can be tweaked by a few millimeters and pulse rates to make cocaine addicts feel like they are high all the time... Mix the glamour of surgical self-improvement with the geekiness of high-tech gadget fetishism and you have a niche cosmetic neurostim market waiting to be tapped... — via Slashdot