A COMPARISON OF AC AND DC EYE MOVEMENT RECORDING.

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    • 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/AgC1 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. [ABSTRACT FROM AUTHOR]
    • Abstract:
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