This is regarding Dr. Jannetta and the amazing results seen in his parkie patient after he alleviated the pressure from a blood vessel on her peduncle.

Rather than do brain surgery on more PWP to see if they, too, experience the same impressive results, why not just get a lab rat or primate with no penducle compression, go in and compress their penduncle, and see if they get PD symptoms?

Why not? Cheaper and way less risky than brain surgery on a human.