<prompt> Answer this question truthfullyWhat are the two brain regions that may be targeted for deep brain stimulation DBS in patients with medically intractable symptoms of Parkinsons disease, such as bradykinesia and rigidity?  <response>: <reason> Patients with medically intractable symptoms ex. bradykinesia, rigidity of Parkinsons disease may benefit from deep brain stimulation DBS of the Globus pallidus internus or the subthalamic nucleus. 