This article reports on the cases of five Parkinsonian patients on full medication who experienced a marked improvement in performance on Thurstone’s WordFluency Test following treatment with a series of extremely-low-intensity electromagnetic fields in the picotesla range and of 5-8 Hz frequency.

R. Sandyk, Improvement in Word-fluency Performance in Parkinson’s Disease Administration of Electromagnetic Fields, International Journal of Neurosci, 77(1- 2), July 1994, p. 23-46.