Bereitschaftspotential Preceding Eyelid Blinks

Abstract

A Bereitschaftspotential (BP) preceding voluntary eyelid blinks has been described in a few studies. A BP was not found preceding automatic blinks and blepharospasms. BP preceding blinks presents low amplitudes compared to apendicular musculature. A BP preceding eyelid voluntary blinks was demonstrated in patients with early stage Parkinson Disease, with severely reduced amplitude.