A recording of voltage changes resulting from
shifts in position of the ocular globes, as each globe is a positive (anterior) and
negative (posterior) dipole; along with the EEG
and the EMG, one of the three basic
variables used to score sleep stages and waking. Sleep
recording in humans uses surface electrodes placed near the eyes to record the movement
(incidence, direction, and velocity) of the eyeballs. Rapid eye movements in sleep form
one part of the characteristics of the REM sleep state.*
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*Reprinted with permission from: Culebras, Antonio Clinical Handbook
of Sleep Disorders Hardcover © 1996 Butterworth-Heinemann
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