This article reports on the cases of five medicated Parkinsonian patients who experienced improvements in motor, behavioral, and autonomic functions, and in visuoconstructional tasks following treatment with extracranial application of magnetic fields in the picotesla range.

R. Sandyk, Reversal of a Visuoconstructional Deficit in Parkinson’s Disease Application of External Magnetic Fields: A Report of Five Cases, International Journal of Neurosci, 75(3-4),
April 1994, p. 213-228.