A new study finds a few millimeters can make a huge difference for patients treated with electrodes that are surgically implanted in the brain.
Implanting electrodes to stimulate a part of the brain related to impulsivity had helped people with Parkinson's reduce their medication intake by up to 65 percent. It also lessened characteristic motor impairment by as much as 70 percent.
The study also found those patients who did not respond well to this procedure benefit from additional surgery to correct the electrode placement.
