EFFECT OF TIME AND SPACE UNCERTAINTY ON A VIGILANCE TASK

Two groups, each of 12 students were instructed to detect increments in light level from displays of one or five lights. Signals appeared in regular and in irregular intervals. The display was flashed on simultaneously for 0.8 seconds every 3.2 seconds. Signal detection was superior with a display of one light then with a display of five lights. For two extreme response criteria, there was a decrement of false alarms and an increment of beta during a run. These changes were not dependent upon time and spatial uncertainty. No difference was found between central and peripheral light positions. Correlation of measures was also examined.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/8683151018
• Supplemental Notes:
  • Perception and Psychophysics, 1974, vol. 15, no. 2, 331-334
• Corporate Authors:

  Ergonomics Society of F.R. Yugoslavia

  Belgrade,   Serbia 
• Authors:
  • Milosevic, S
• Publication Date: 1998

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 10-19
• Serial:
  • Selected Papers on Ergonomics and Traffic Psychology
  • Publisher: Ergonomics Society of F.R. Yugoslavia

Subject/Index Terms

• TRT Terms: Detection and identification; Detectors; Instruments for measuring time; Navigation lights; Students; Time intervals; Uncertainty; Vigilance
• Old TRIS Terms: Light signals; Time measurements
• Subject Areas: Education and Training; Highways; Safety and Human Factors; I83: Accidents and the Human Factor;

Filing Info

• Accession Number: 00753402
• Record Type: Publication
• ISBN: 8683151018
• Files: TRIS
• Created Date: Sep 18 1998 12:00AM