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October 1982

Spontaneous Eye Blinks and EEG Changes

Author Affiliations

238A Augustus St Cornwall, Ontario K6J 3W3 Canada

Arch Neurol. 1982;39(10):674. doi:10.1001/archneur.1982.00510220072028

To the Editor.—  I found the recent publication by McCarthy and Marshall on suppression-burst pattern with associated eyelid opening (Archives 1981;38:754-756) to be most interesting. They seemed certain that the eyelid movements were the motor manifestation of the seizure activity also causing the EEG discharges, and did not believe that the changes observed on the EEG were the result of eye opening and closure. Their assumption is probably correct for several reasons: (1) The onset of EEG discharges corresponds to eye opening, and not to eye closure as usually seen in light-sensitive epilepsy1 in cases where such discharges are observed as a result of the motor act of eye closure.2 (2) The intermittent EEG discharges continued without associated eyelid movement in the follow-up tracing of patient 2. (3) There is a significant delay in two of their cases between termination of EEG discharges and eyelid closure. (4) The

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