Non-linear analysis of the sleep EEG |
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| Authors: | Toshio Kobayashi MD,Kiwamu Misaki MD,Hiroki Nakagawa MD,Shigeki Madokoro MD,Hisataka Ihara MD,Kyoko Tsuda MD,Yumiko Umezawa MD,Jyunichi Murayama MD, & Kiminori Isaki MD |
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| Affiliation: | Department of Neuropsychiatry, Fukui Medical University, Japan. |
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| Abstract: | A sleep electroencephalogram was analyzed by non-linear analysis. The polysomnography of a healthy male subject was analyzed and the correlation dimensions calculated. The correlation dimensions decreased from the 'awake' stage to sleep stages 1-3 and increased during rapid eye movement (REM) sleep. These results were seen during each sleep cycle. In each sleep cycle, the correlation dimensions decrease for slow wave sleep, and increase for REM sleep. |
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| Keywords: | correlation dimension non-linear analysis polysomnography rapid eye movement sleep sleep cycles sleep electroencephalogram sleep stage slow wave sleep |
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