Effects of Signal Regularity and Salience on Vigilance Performance and Cerebral Hemovelocity

Details

• Personal Author:
  Beam CA ; Dember WN ; Hitchcock EM ; Hollander TD ; Matthews GR ; Parasuraman R ; Tripp LD ; Warm JS
• Description:
  The signal regularity effect - enhanced performance efficiency when critical signals for detection appear in a temporally regular as opposed to an irregular manner- has a long history in vigilance research. However, the precise conditions under which this effect can be elicited have not been identified. Toward that end, this study demonstrates that the effect is limited to low salience signals, perhaps because the effort needed to generate veridical temporal expectancies is unnecessary with high salience signals. Additionally, using signal detection theory indices (d' & c) and neuroimaging of cerebral blood flow via transcranial Doppler sonography, this study also shows that the signal regularity effect is rooted in sensing rather than decision-making factors and that it is localized in the right cerebral hemisphere. [Description provided by NIOSH]
• Subjects:
  Nervous System Occupational Health Safety Sense Organs
• Keywords:
  Central-nervous-system Humans Sensory-perceptual-processes Sensory-thresholds
• ISBN:
  9780945289203
• ISSN:
  1071-1813
• Publisher:
  Human Factors and Ergonomics Society
• Document Type:
  Text
• Genre:
  Proceedings
• Place as Subject:
  District of Columbia ; Ohio ; OSHA Region 3 ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DART - Division of Applied Research and Technology
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  46
• NIOSHTIC Number:
  nn:20023296
• Citation:
  Proceedings of the Human Factors and Ergonomics Society 46th Annual Meeting, September 29 - October 4, 2002, Baltimore, Maryland, Bringing Fundamentals & New Opportunities. Santa Monica, CA: Human Factors and Ergonomics Society, 2002 Sep; 46(Percep Perform):1654-1658
• Federal Fiscal Year:
  2002
• Peer Reviewed:
  True
• Source Full Name:
  Proceedings of the Human Factors and Ergonomics Society 46th Annual Meeting, September 29 - October 4, 2002, Baltimore, Maryland, Bringing Fundamentals & New Opportunities
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:674cde6bbcfe16c6e60e9e378ad3faf62f8850d0859da30d299478d726a7260339c3546e9455c99a6f9ed5ab311821ac629b9bb6e69fddadc56fc7a9943edb8d
• Download URL:
  https://stacks.cdc.gov/view/cdc/195814/cdc_195814_DS1.pdf
• File Type:
  [PDF - 517.66 KB ]