前庭動眼反射による眠気予兆検出

書誌事項

タイトル別名
  • Prediction of Drowsiness by the Vestibulo-Ocular Reflex
  • ゼンテイドウガン ハンシャ ニ ヨル ネムケ ヨチョウ ケンシュツ

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抄録

A reliable predictor of drowsiness using objective measures is desirable for machine and vehicle operations in which human errors may cause fatal accidents. Presently, we have evaluated the Vestibulo-Ocular Reflex (VOR) as a possible predictor of drowsiness. The VOR is a compensatory eye movement that stabilizes retinal image during head motion, and is inevitably induced by vibration in a car running on the road. We employed an uneventful driving simulation (DS) featuring vibration stimulation to induce both drowsiness and VOR in healthy human subjects. VOR performance was characterized by gain and residual standard deviation in relation to the subjects' drowsiness. A significant decrease in VOR gain and increase in residual standard deviation accompanied subjective sleepiness, with changes in VOR performance occurring before subjects became aware of sleepiness. From this finding, we developed a reliable method (88.9%accuracy) to predict oncoming sleepiness using changes in VOR performance as a cue.

収録刊行物

  • 生体医工学

    生体医工学 48 (1), 1-10, 2010

    公益社団法人 日本生体医工学会

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