TIME ESTIMATION DURING PROLONGED SLEEP DEPRIVATION AND ITS RELATION TO ACTIVATION MEASURES

This study analyzed variations in time estimation during 60 hrs of sleep deprivation, and the relation of time estimation performance and the activation measures of skin resistance level, body temperature, and Stanford Sleepiness Scale (SSS) scores. A lengthening in time estimations that was modulated by circadian oscillations was found among 30 healthy participants 18-24 yrs of age. No differences in gender were found in the time estimation task during sleep deprivation. The variations in time estimation correlated significantly with body temperature, skin resistance level, and SSS throughout the sleep deprivation period. When body temperature is elevated, indicating a high level of activation, the interval tends to be underestimated, and vice versa. When the skin resistance level or SSS is elevated, time estimation is lengthened, and vice versa. This lengthening is important as many everyday situations involve duration estimation under moderate to severe sleep loss. Applications of this research include transportation systems and emergency response work.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/1329271
• Corporate Authors:

  Human Factors and Ergonomics Society

  P.O. Box 1369
  Santa Monica, CA  United States  90406-1369
• Authors:
  • Miro, E
  • Cano, M C
  • Espinosa-Fernandez, L
  • Buela-Casal, G
• Publication Date: 2003

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 148-159
• Serial:
  • Human Factors
  • Volume: 45
  • Issue Number: 1
  • Publisher: Sage Publications, Incorporated
  • ISSN: 0018-7208
  • EISSN: 1547-8181
  • Serial URL: http://hfs.sagepub.com/

Subject/Index Terms

• TRT Terms: Attention lapses; Automobile driving; Fatigue (Physiological condition); Highway safety; Human factors; Human subject testing; Perception; Physiological aspects; Sleep deprivation; Time intervals
• Subject Areas: Highways; Safety and Human Factors; I83: Accidents and the Human Factor;

Filing Info

• Accession Number: 00960634
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 22 2003 12:00AM