Before I was diagnosed by my MD neurologist, but had a good fortune to be examined by a functional neurologist. Functional neurology believes that all brain ways to the rest of the body flow through your eyes. So by testing different movements of the eyes it can be determined what part of your brain needs to most stimulation. In my situation my right side was affected by Parkinson's and so the left brain is the one affected. What's really interesting is I can stimulate my left brain through eye exercises which I do every day. The eye exercises increase my cognitive skills, my and energy level and some of my motor skills. I went I went through a weeklong intensive exercise program with the doctor and now I only go back twice a year for routine checkup. By doing various IHS he can tell if my brain is still being stimulated close to the level that it was after the weeklong intensive exercise program. The last two times I've gone the brain was actually stimulated at a higher level than it was my left after the weeklong exercise. I've not seen anyone post information about this, but I would be interested if anyone else's experience positive results with the functional neurologist.
I witnessed a very unique experience as a parky came in on Monday the same week I was there. He was bent over at about 45° walking with a cane to keep from falling down. On Friday that week he was standing straight up and down and did not need to cane.