中山醫學大學機構典藏 CSMUIR:Item 310902500/19173
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    题名: Correlation between EOG and EEG in the detection of sleep onset
    作者: Huang, Ren-Jing;Hsiao, Ya-Yun;Ting, Hua
    贡献者: 中山醫大
    关键词: Driver;slow eye movement;blink
    日期: 2017-12-01
    上传时间: 2018-04-03T08:18:57Z (UTC)
    出版者: 研發處育成中心暨產學合作組
    摘要: Purpose: Bus driver sleepiness is a serious and urgent public safety issue. Manually analyzing electroencephalogram (EEG) changes to determine sleep onset latency, Maintenance of Wakefulness Test (MWT), is the gold standard for evaluating subject's ability to keep alert at twilight and in quiet situations. However, this test cannot be applied to drivers at work. Therefore, we attempted to develop an auto-program that analyzes sole electrooculogram (EOG) signals in a quasi-real-time manner, and sends out an immediate warning when sleepiness is detected. Methods: Eighty-one bus drivers were recruited. Blink-type waves were characterized by pulse-type, high amplitude and high frequency (0.6-1.3Hz), and corresponded to fast eye closing and opening. Slow eye movement (SEM) was characterized by low frequency (0.2-0.6Hz), and corresponded to rolling, horizontal, bidirectional and conjugate eye movements. Sleep onset was determined by Blink index level lower than a certain threshold, concomitant with SEM index level higher than another threshold. These two thresholds were set progressively by corresponding MWT-determined sleep onset. Results: Thresholds of these two indices were set at 79 and 985 from the data of 43 subjects. Sleep latency determined by EOG showed good agreement and sensitivity in comparison with MWT (91.2% and 93.3%, respectively). Following further verification with 38 subjects, agreement and sensitivity of sleep latency detected by EOG reached 88.3% and 93.6%, respectively. Conclusion: This auto program computed sleep onset latency using indices of Blink and SEM. The results are in strong agreement with those of MWT. Our innovative EOG-based program has the potential to be applied to drivers and working individuals to warn of sleep onset in almost real time.
    URI: https://ir.csmu.edu.tw:8080/ir/handle/310902500/19173
    關聯: 中山醫學雜誌 27卷2期 , P69~74
    显示于类别:[研發處] 期刊論文

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