I do not have PD myself, but Mom does, or atleast she has due to meds? Anyhoo...I do have Nerve Damage & Drop foot on my left leg. I wear a brace. Dr's told me I would NOT be able to ever pick up that foot, which of course I could not for several years.
I did this Visual Focusing, it worked for me! I Can tell my leg to move & it will, I can even walk without a limp most times....BUT, it I get tired or my mind is not paying close attention, it all goes away! I lose control. So I know there is a link.

I try this mental imaging with my mom, but she can't seem to hold onto a thought long enough. She also has AD & Schizo which makes it harder. I would like to get some CD's though & perhaps "replace" or "Implant" positive info to her.