Comparison of presaccadic potentials in REM sleep and in wakefulness
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概要
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Rapid eye movements (REMs) in REM sleep and voluntary saccades in wakefulness were compared in terms of the brain potentials preceding eye movements and the speed of eye movements. Sixteen undergraduate and graduated students who reported having dreams frequently participated in the experiment. REMs in REM sleep were recorded during natural nocturnal sleep and saccades in wakefulness were recorded during a self-paced visual search task. Brain potentials were averaged time-locked to the onset of eye movements. A negative potential shift (presaccadic negativity) occurred at central sites of the scalp before the onset of saccades, whereas no potential shift was found before the onset of REMs. Moreover, the velocity of REMs was slower than that of saccades. These findings suggest that REMs in REM sleep are initiated without voluntary preparation and controlled by a different neural mechanism from that in wakefulness. (<I>Japanese Journal of Physiological Psychology and Psychophysiology</I>, 20 (3) : 207-214, 2002.)
- Japanese Society for Physiological Psychology and Psychophysiologyの論文
Japanese Society for Physiological Psychology and Psychophysiology | 論文
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- Comparison of presaccadic potentials in REM sleep and in wakefulness
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