James Kent from Dose Nation writes:
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. Neurostim isn‘t a cheap commodity yet, but in the future it could be. The “off label” demand for designer neurostim does not exist today, but if the implant procedure was automated and the price was reduced, it could be a very marketable alternative to long-term drug therapy. Cheap neurostim would then fuel an off-label market for cosmetic and personal use with subsidiary markets for designer software upgrades, patches, and applets to customize functionality. But first there needs to be consumer demand for the product, and that has yet to materialize.
h+: Cognitive Commodities in the Neuro Marketplace
See also: The Curious Case of a Woman Addicted to Her Brain Implant)