Clinical and laboratory note
Depth electrographic observations in two cases of photo-oculoclonic response,☆☆

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Abstract

Simultaneous deep and superficial electrograms recorded in two patients with typical “photo-oculoclonic response” (“fronto-polar recruiting response” of Gastaut or “photo-myoclonic response” of Bickford) suggest that the response consisted in these cases of several recordable components. Surface recordings contained potentials essentially muscular and ocular in origin whereas depth electrograms revealed long latency frontal irradiation potentials.

No definite clinical diagnostic significance is attributed to the phenomenon of frontal irradiation of visual responses in the human.

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This study was partially supported by a grant from the Minnesota Department of Public Welfare to the Rochester State Hospital.

☆☆

Read, in part, at the Round Table Discussion on Depth Recordings from the Human Brain, Fifth International Congress of Electroencephalography and Clinical Neurophysiology, Rome, September 7–13, 1961.

3

Present address: EEG Laboratory, University Hospital, University of Washington School of Medicine, Seattle, Washington.

4

Present address: Division of Neurology, Wayne State University College of Medicine, Harper Hospital, Detroit, Michigan.

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