Skip to main content
padlock icon - secure page this page is secure

Involuntary Eye Responses as Measures of Fatigue in U.S. Army Apache Aviators

Buy Article:

$27.00 + tax (Refund Policy)

LeDuc PA, Greig JL, Dumond SL. Involuntary eye responses as measures of fatigue in U.S. Army Apache aviators. Aviat Space Environ Med 2005; 76(7, Suppl.):C86–91.

Introduction: AH-64 Apache helicopter pilots fly the aircraft using a monocular helmet-mounted display that provides imagery from two separate forward-looking infrared sensors mounted on the nose of the aircraft. Studies have documented complaints of fatigue, headaches, and visual problems associated with the use of this sighting system. The goals of this study were: 1) to quantify possible flight-induced fatigue in Apache aviators; and 2) to evaluate minimally intrusive neurophysiologic measures of fatigue for potential use in operational environments. Methods: Using a pre/post design, we assessed self-reported levels of alertness, physical, cognitive, and visual fatigue, and ocular indices of fatigue obtained using an instrument specifically designed to capture various eye responses. Data were contributed to this study by 53 aviators. Results: Significant differences in all pre- and postflight ocular responses were observed. Pupil size and constriction latency increased while constriction amplitude and saccadic velocity decreased. Significant pre- and postflight differences were also seen on all self-report measures. Pilots reported being less alert and more fatigued following flight. Conclusions: We found that flight in an AH-64 Apache was a significant factor in producing changes in ocular and self-report measures similar to those produced by sleep loss.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Keywords: cognitive; oculomotor; pupillary response; saccade

Document Type: Research Article

Publication date: July 1, 2005

More about this publication?
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more