EVALUATION OF TECHNIQUES FOR OCULAR MEASUREMENT AS AN INDEX OF FATIGUE AND THE BASIS FOR ALERTNESS MANAGEMENT

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. 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.

• Record URL:
  https://ntlrepository.blob.core.windows.net/lib/21000/21900/21955/PB99150237.pdf
• 
• Corporate Authors:

  National Highway Traffic Safety Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • DINGES, D F
  • Mallis, M M
  • Maislin, G
  • Powell IV, J W
• Publication Date: 1998-4

Language

• English

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: 113 p.

Subject/Index Terms

• TRT Terms: Alertness; Attention lapses; Drivers; Driving simulators; Drowsiness; Fatigue (Physiological condition); Human subject testing; Impaired drivers; Measuring methods; Psychophysics; Sleep deprivation; Validation; Vigilance
• Uncontrolled Terms: Perclose; Psychomotor vigilance task
• Subject Areas: Highways; Safety and Human Factors; I83: Accidents and the Human Factor;

Filing Info

• Accession Number: 00789790
• Record Type: Publication
• Report/Paper Numbers: HS-808 762,, Final Report
• Contract Numbers: DTNH22-93-D-07007
• Files: HSL, NTL, TRIS, USDOT
• Created Date: Mar 16 2000 12:00AM