While the type of sleep obtained does not appear to be an important factor in performance, the time of day the sleep is obtained and when the performance occurs are very important. Time-of-day effects may be a more crucial factor in performance than the preceding sleep patterns. While the effect of total sleep loss becomes pronounced after 48 to 60 hours, consistent performance decrement following reduced sleep or fragmented sleep has not been found. Feelings of fatigue, however, are a consistent finding in all sleep-loss studies. A significant relation between sleep quality (good vs. poor sleep) and performance is not easily found. The deleterious effect of hypersomnia, especially that due to narcolepsy, has been documented.

  • Supplemental Notes:
    • Presented on 1/2 October 1979 (London); 4/5 October 1979 (Paris); 9/10 October 1979 (Toronto): AGARD Lecture Series 105 (Sleep, Wakefulness and Circadian Rhythm).
  • Corporate Authors:

    Advisory Group Aerospace Research and Development

    7 Rue Ancelle
    92 Neuilly-sur-Seine,   France 
  • Authors:
    • Johnson, L C
  • Publication Date: 1979-9

Media Info

  • Features: References;
  • Pagination: 17 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00315047
  • Record Type: Publication
  • Report/Paper Numbers: Paper No.8 Conf Paper
  • Files: TRIS
  • Created Date: Aug 27 1980 12:00AM