No Parkinson's with the flip of a switch

I was really amazed and watched a live surgery. The surgery was done by one Professor, a Neurologist, and two medicine-physicists. I was really amazed how the operation was done. Most of the work was actually done on a computer to get the brain coordinates right (so no vessles would break when they dig a hole in your head). They actually just drill a small hole in the scull, and will not open the scull fully.

The scariest moment was, when the Neurologist hooked up his Windows 2000 Laptop to the fully awake patient trying to figure out which voltage/current would be the best stimulant.

The patient had to count the weekdays beginning at Monday. Everything worked out until Wednesday. Thursday sounded more like "mmmblblblbmmlbm". After that the Neurologist hit a few buttons on the Laptop, adjusted the currents, and after that the patient was able to speak out "Thursday" easily.