A COMPARISON OF AC AND DC EYE MOVEMENT RECORDING

ABSTRACT This study demonstrates the distortions introduced into the electro‐oculographic record as a function of choice of recorder time constant. Controlled waking eye movements were simultaneously recorded on five separate channels from the same pair of nonpolarizable Ag/AgCl electrodes. Time con...

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Bibliographic Details
Published in:Psychophysiology 1966-10, Vol.3 (2), p.157-163
Main Authors: Tursky, Bernard, O'Connell, Donald N.
Format: Article
Language:English
Subjects:
Electro-oculography
Electrooculography
Eye movement
Eye Movements
Humans
REMs
Time constants
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Summary:ABSTRACT This study demonstrates the distortions introduced into the electro‐oculographic record as a function of choice of recorder time constant. Controlled waking eye movements were simultaneously recorded on five separate channels from the same pair of nonpolarizable Ag/AgCl electrodes. Time constants for these channels were DC, 3 sec, 1 sec, 0.3 sec, and 0.1 sec. Results indicate that eye movement recorded through short time constants cannot differentiate between rapid eye movement and saccadic components of slow eye movements, cannot follow slow smooth eye movements, and cannot show the position of the eyes when they are not in motion. The use of DC coupling makes it possible to record these three classes of events faithfully.
ISSN:0048-5772
1469-8986
DOI:10.1111/j.1469-8986.1966.tb02691.x