Oliver Sachs' book on Musicophilia: Tales of Music and the Brain" (http://musicophilia.com/music_video.htm) talks about how a Parkinson patient, described in Awakenings, get free of their Parkinson's disease while involving in or even thinking of music. Music helps them gain back their own tempe. See You Tube's Music Therapy and Parkinson's disease, on a patient thinking of performing Frederique Chopin's Fantasie Op 49 on piano which the patient knew by heart: http://www.youtube.com/watch?v=9nnLT...usic_video.htm

Handwriting movement recording in Parkinson patients: www.neuroscript.net. Almost everyone can do it.