REM alpha rhythm: diagnostic for narcolepsy? |
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| Authors: | Mark Eric Dyken Evan J Wenger Thoru Yamada |
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| Institution: | Department of Neurology, Sleep Disorders Center, Roy J. and Lucille A. Carver College of Medicine, Iowa City, Iowa, USA. markdyken@uiowa.edu |
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| Abstract: | SUMMARY: A young man, in whom narcolepsy was subsequently diagnosed, had the simultaneous onset of quadriparesis and a rapid eye movement (REM)-sleep polysomnographic pattern. During this REM-sleep pattern, a waking alpha EEG rhythm, appearing when he was asked to close his eyes, immediately attenuated when he was instructed to open his eyes, after which the REM-sleep pattern persisted. The juxtaposition of REM sleep patterns and reactive alpha rhythms are likely unique to sleep paralysis and may prove valuable in diagnosing narcolepsy. |
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