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Alcohol effect on sleep electroencephalography by fast Fourier transformation |
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| Authors: | TOSHIO KOBAYASHI KIWAMU MISAKI HIROKI NAKAGAWA KYOKO OKUDA TADAAKI OTA IZUMI KANDA KIMINORI ISAKI YOSIFUMI KOSINO HIDEMICHI FUKUDA |
| Institution: | Department of Neuropsychiatry, Fukui Medical School, Fukui;Department of Neuropsychiatry, Kanazawa University College of Medicine;Amabarashi Clinical Information Laboratory, Japan |
| Abstract: | Abstract The influence of alcohol (ethanol) on sleep was investigated in 10 men. Polysomnography (PS) was recorded on a baseline night (BL-N) and an ethanol (0.8 g/kg) night (Et-N). On visual score rapid eye movement (REM) sleep was reduced, REM latency was prolonged on Et-N as compared to BL-N. Using the fast Fourier transformation method, electroencephalographic power density of REM sleep in δ frequencies band and in the 10–12 Hz range of non-REM sleep were enhanced. REM sleep and non-RJEM sleep changes were prominent in the second-half and first-half of the night, respectively. |
| Keywords: | electroencephalography ethanol fast Fourier transformation non-REM sleep polysomnography power density REM sleep |