PREDICTING HUMAN PERFORMANCE III: DETECTION OF A SIMPLE VISUAL SIGNAL AS A FUNCTION OF TIME OF WATCH

The percentage of detection of 37 studies of vigilance, using simple signals, were found to depend primarily on the initial or pre-test detection level, the nature of the signal, i.e. whether it is a dynamic signal (requires movement or change of state of the eye) or static, and the duration of the watch. The loss of detection associated with static signals was assumed to be more representative of a loss in a "vigilance" or attentional process. That loss appears to be rapid in development, essentially complete in about 35 min., and small in amount. The greater decrements associated with dynamic stimuli were assumed to be due to an additional process of eye fatigue. (Author)

• Supplemental Notes:
  • See also report dated April 1971 (AD-0724001).
• Corporate Authors:

  New Mexico State University, Las Cruces

  Department of Psychology
  Las Cruces, NM  United States  88003
• Authors:
  • Teichner, W H
• Publication Date: 1972-6

Media Info

• Pagination: 36 p.

Subject/Index Terms

• TRT Terms: Fatigue (Physiological condition); Personnel performance; Tolerance (Physiology); Watchkeeping
• Old TRIS Terms: Human performance; Tolerance (Physiological)
• Subject Areas: Education and Training; Marine Transportation;

Filing Info

• Accession Number: 00314945
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: NMSU-ONR-TR-72-1 Tech. Rpt.
• Contract Numbers: N00014-70A-0147-0002
• Files: TRIS
• Created Date: Aug 27 1980 12:00AM