In 1755, Le Roy tried to cure a patient of his blindness by sending electric current pulses through a wire wound around the head. The blind man perceived vivid flashes of light, but could not be cured.Pascual-Leone, A. and Wagner, T., A Brief Summary of the History of Noninvasive Brain Stimulation, Annu. Rev. Biomed. Eng. 2007. 9:527–565 This is considered the first experimental evidence that nerves could be electrically stimulated, 36 years before the description of electrophysiological phenomena by Galvani.
