EVALUATION OF TECHNIQUES FOR OCULAR MEASUREMENT AS AN INDEX OF FATIGUE AND THE BASIS FOR ALERTNESS MANAGEMENT
Published 1 April 1998
David F. Dinges, Melissa M. Mallis, Greg Maislin, John W. Powell
Citations260
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TL;DR
This final report establishes the scientific validity of the ocular measure "Perclose" as a generally useful and reliable index of lapses in visual attention, i.e., the percentage of eyelid closure over the pupil, in a controlled sleep deprivation study.
Abstract
This final report establishes the scientific validity of the ocular measure as a generally useful and reliable index of lapses in visual attention, i.e., the percentage of eyelid closure over the pupil. Perclose was previously specified as a relevant measure of drowsiness in several driving simulator studies (NHTSA Final Report HS-808 640; TRIS 00745689). In the present research, further validation of Perclose was established among other measures, in a controlled sleep deprivation study, using a well-known psychophysical index of lapses in visual attention, i.e., Psychomotor Vigilance Task (PVT). The present study provides the scientific and practical basis to relate real-time lapses in visual attention to over-the-road driving performance.
Keywords
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