Fatigue in the military: towards a fatigue detection test based on the saccadic velocity

Díaz-Piedra, Carolina; Rieiro, Héctor; Suárez, Juan; Rios-Tejada, Francisco; Catena, Andrés; Stasi, Leandro L. Di

doi:10.1088/0967-3334/37/9/n62

Cited by 42 publications

(20 citation statements)

References 64 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Di obtained similar results by finding the metric saccadic velocity decreased after long simulated flights in comparison to short simulated flights. The authors suggested saccadic velocity as a biomarker for aviator fatigue as did Diaz-Piedra et al (2016) for warfighter fatigue. McKinley et al (2011) evaluated two kinds of eye metrics-namely total eye closure duration and approximate entropy-to detect fatigue in tasks relevant to military aviation after sleep deprivation (14-28 hr).…”

Section: Health and Physiological Factors Affecting Performancementioning

confidence: 99%

Eye-Tracking Measures in Aviation: A Selective Literature Review

Peißl

Wickens

Baruah

2018

The International Journal of Aerospace Psychology

View full text Add to dashboard Cite

Objective: The aim of this article is to present a comprehensive review of eye-tracking measures and discuss different application areas of the method of eye tracking in the field of aviation. Background: Psychophysiological measures such as eye tracking in pilots are useful for detecting fatigue or high-workload conditions, for investigating motion sickness and hypoxia, or for assessing display improvements and expertise. Method: We review the uses of eye tracking on pilots and include eyetracking studies published in aviation journals, with both a historical and contemporary view. We include 79 papers and assign the results to the following three categories: Human performance, aircraft design, health and physiological factors affecting performance. We then summarize the different uses of eye tracking in each category and highlight metrics which turned out to be useful in each area. Our review is complementary to that of Ziv (2016). Results: On the basis of these analyses, we propose useful application areas for the measurement of eye tracking. Eye tracking has the potential to be effective in terms of preventing errors or injuries by detecting, for example, fatigue or performance decrements. Applied in an appropriate manner in simulated or real flight it can help to ensure optimal functioning of man-machine systems. Conclusion: Further aviation psychology and aerospace medicine research will benefit from measurement of eye movements.

show abstract

Section: Health and Physiological Factors Affecting Performancementioning

confidence: 99%

Eye-Tracking Measures in Aviation: A Selective Literature Review

Peißl

Wickens

Baruah

2018

The International Journal of Aerospace Psychology

View full text Add to dashboard Cite

show abstract

“…Notably, studies that have had success at linking fatigue and saccadic velocity, have operationalised fatigue as a reduced alertness/vigilance. Most of these studies, commonly report a relationship between reduced alertness with a decrease in saccadic velocity [10]. If self-report symptoms of visual fatigue after VR-exposure are linked to alertness instead of symptoms of visual dysfunction, then it is possible that visual fatigue after VR has cognitive origins [7].…”

Section: Introductionmentioning

confidence: 99%

Beyond Feeling Sick: The Visual and Cognitive Aftereffects of Virtual Reality

et al. 2019

View full text Add to dashboard Cite

Despite continued improvements in virtual reality (VR) technologies, many people still experience adverse symptoms from using head-mounted displays (HMDs). Typically, these symptoms are monitored through self-report measures, such as the Simulator Sickness Questionnaire (SSQ); however, by only using subjective measures many symptoms may be overlooked. In an application-based study, we investigated visual and cognitive aftereffects of using HMDs and their relationship to the reporting of sickness on the SSQ. Visual (accommodation and vergence) and cognitive (reaction time and rapid visual processing) assessments were employed before and after participants engaged in a 30-minute VR table tennis game (VR group, n = 27) or went about their daily activities (control group, n = 28). The data showed changes in accommodation but no concurrent changes in vergence, which likely stems from decoupling accommodation and vergence in VR. Furthermore, larger changes in accommodation were linked to more severe sickness symptoms suggesting that decoupling accommodation and vergence could be more adverse than previously thought. The VR group also had slower decision (cognitive) times, but movement times were unaffected. These findings go beyond the typical self-reporting of sickness in VR studies. Moreover, we demonstrate that even in a high-quality commercial virtual environment, users may experience visual and cognitive aftereffects that may negatively influence their experience with subsequent activities in the real world. Developing an understanding of how VR aftereffects may influence later activities could help to minimise the risk of using HMDs for various applications and may be valuable to obtain a better understanding of user issues and VR safety.

show abstract

“…This temporary dissociation of vergence and accommodation introduces unnatural conflicts in visual processing, which are linked to symptoms such as headaches and visual fatigue. a relationship between reduced alertness with a decrease in saccadic velocity (10). If self-report symptoms of visual fatigue after VR-exposure are linked to alertness instead of symptoms of visual dysfunction then it is possible that visual fatigue after VR has cognitive origins (7).…”

Section: Introductionmentioning

confidence: 99%

Beyond Feeling Sick: The Visual and Cognitive Aftereffects of Virtual Reality

Szpak¹,

Michalski²,

Saredakis³

et al. 2019

Preprint

View full text Add to dashboard Cite

Developing an understanding of how virtual reality (VR) aftereffects may influence later activities could help to minimise the risk of using head-mounted displays (HMDs) for various applications. This study investigated the visual and cognitive aftereffects of using HMDs and their relationship to the reporting of VR sickness symptoms. Visual (accommodation and vergence) and cognitive (reaction time and rapid visual processing) assessments were employed before and after participants engage in a 30-minute VR table tennis game (VR group, n = 27) or went about their daily activities (control group, n = 28). VR sickness symptoms were captured using the Simulator Sickness Questionnaire (SSQ). The data showed changes in accommodation but no concurrent changes in vergence, which likely stems from decoupling accommodation and vergence in VR. Furthermore, larger changes in accommodation were linked to a greater reporting of sickness symptoms suggesting that decoupling accommodation and vergence could be more adverse than previously thought. Participants in the VR group also showed slower decision (cognitive) times, but VR did not seem to affect their movement times in a five-choice reaction time task. The novel visual and cognitive findings from this study may be valuable to obtain a better understanding of the user issues and safety around VR usage.

show abstract

Fatigue in the military: towards a fatigue detection test based on the saccadic velocity

Cited by 42 publications

References 64 publications

Eye-Tracking Measures in Aviation: A Selective Literature Review

Eye-Tracking Measures in Aviation: A Selective Literature Review

Beyond Feeling Sick: The Visual and Cognitive Aftereffects of Virtual Reality

Beyond Feeling Sick: The Visual and Cognitive Aftereffects of Virtual Reality

Contact Info

Product

Resources

About