EFFECTS ON VIGILANCE PERFORMANCE AND SLEEPINESS OF ALCOHOL GIVEN IN THE EARLY AFTERNOON ('POST LUNCH') VS EARLY EVENING

There is a propensity for sleepiness in the early afternoon (post lunch dip), that contrasts with the circadian peak of alertness in the evening. Alcohol has a soporific effect, and one might expect it to be more potent in the early afternoon than in the evening. This area was researched in this study. The details of the study are described, and the results are presented. It was found that 2 and 4 units of alcohol produced greater impairment in the afternoon compared with the corresponding evening values. Implications of these findings for driving behavior are discussed (the maximum legal BAC for car drivers in the United Kingdom is 80 mg/100 ml blood).

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00140139
• Corporate Authors:

  Taylor & Francis

  4 Park Square, Milton Park
  Abingdon,   United Kingdom  OX14 4RN
• Authors:
  • Horne, James A
  • Gibbons, H
• Publication Date: 1991

Media Info

• Pagination: p. 67-77
• Serial:
  • Ergonomics
  • Volume: 34
  • Issue Number: 1
  • Publisher: Taylor & Francis
  • ISSN: 0014-0139
  • EISSN: 1366-5847
  • Serial URL: http://www.tandfonline.com/loi/terg20

Subject/Index Terms

• TRT Terms: Alcoholic beverages; Behavior; Blood alcohol levels; Driver performance; Drivers; Drunk drivers; Drunk driving; Impaired drivers; Personnel performance; Sleep
• Old TRIS Terms: Driver impairment
• Subject Areas: Highways; Safety and Human Factors; I80: Accident Studies;

Filing Info

• Accession Number: 00623005
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 31 1992 12:00AM