Oculomotor impairment during chronic partial sleep deprivation

Russo, Michael B.; Thomas, Maria; Thorne, David R.; Sing, Helen C.; Redmond, Daniel P.; Rowland, Laura M.; Johnson, Dagny; Hall, Stanley W.; Krichmar, Jeffrey L.; Balkin, Thomas J.

doi:10.1016/s1388-2457(03)00008-7

Cited by 97 publications

(64 citation statements)

References 16 publications

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“…Thus it would be important for future research to assess the impact of fatigue on 30-s OSPATs, as the results of this study may not be generalizable to this task duration. Additionally, OSPAT should be compared to other measures that are currently being researched as potential fatigue detectors such as the Critical Flicker Fusion Test 31) and Pupillometry 32) . Importantly, fatigue is becoming a growing concern in many industries, particularly in industries involving shiftwork 10) .…”

Section: Discussionmentioning

confidence: 99%

The Impact of Sustained Wakefulness and Time-of-day on OSPAT Performance

et al. 2005

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Fatigue associated with shiftwork is a key contributor to human error in the workplace. One way to prevent fatigue-related errors from occurring is to identify fatigue in employees using fitness-for-duty measures. The Occupational Safety Performance Assessment Test (OSPAT), an unpredictable tracking task that measures hand-eye coordination, is currently being used as a fitnessfor-duty measure in a variety of industries, but has not yet been validated as a test sensitive to the effects of fatigue. Consequently, the aim of this study was to systematically examine the impact of sustained wakefulness and time-of-day on OSPAT performance. Twenty individuals (10 male, 10 female), aged between 18-25 yr (M=20.90, SD=2.29) participated in the study, which was conducted in Australia. The study had a repeated measures design, whereby participants completed the OSPAT and measures of sustained attention (i.e., the psychomotor vigilance task: PVT), and subjective alertness (i.e., the Visual Analog Scale: VAS) every 2 h during 24 h of sustained wakefulness, beginning at 07:00h. Results revealed that VAS ratings of alertness, PVT performance, and OSPAT performance declined significantly as hours of wakefulness increased during the night-time (all p<.01). Furthermore, a positive correlation between OSPAT and PVT performance was observed (r=0.40, p<.01). Overall, these findings suggest that OSPAT is sensitive to sustained wakefulness during the night-time, and builds the case for OSPAT being a suitable measure for determining fitness-for-duty in workplace environments.

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Section: Discussionmentioning

confidence: 99%

The Impact of Sustained Wakefulness and Time-of-day on OSPAT Performance

et al. 2005

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“…Fatigued conditions can cause a longer latency period, reduce the velocity of the saccade, or result in saccades that either undershoot or overshoot the target. Russo et al (2003) found that saccadic velocity is particularly sensitive to an increase in sleepiness in response to prolonged periods of partial sleep deprivation.…”

Section: Preflight Predictions Of Upcoming Status-a Role For Eve Movementioning

confidence: 99%

“…Similarly, Russo et al (1999) found that both decreases in saccadic velocity and increases m pupil constriction latency correlated with an increase in the rate of crashes under simulated driving conditions during periods of sleep deprivation. Russo et al (2003) later summarized information which suggested that the speed and magnitude with which the pupil contracts after exposure to a light flash may offer insight into the level of parasympathetic/sympathetic-nervous-system dominance in fatigued volunteers. Thus, diere is reason to believe that a variety of eyemovement measures may offer reliable predictions about the upcoming performance capabilities of pilots.…”

Section: Preflight Predictions Of Upcoming Status-a Role For Eve Movementioning

confidence: 99%

The Effects of 37 Hours of Continuous Wakefulness On the Physiological Arousal, Cognitive Performance, Self-Reported Mood, and Simulator Flight Performance of F-117A Pilots

Caldwell

Brown³

et al. 2004

Military Psychology

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“…In addition, modafmil prevented the reductions in saccadic velocity and the decreases in pupil diameter that have been associated with fatigue from sleep deprivation (Russo et al, 2003;Stem, 1999). In this study, modafmil significantly attenuated the fatiguerelated accentuations of both deha activity (1.5-3.5 Hz) and theta activity (3.5-8.0 Hz) that were observed across all three of the midline EEG recording sites (Cz, Pz, and Oz).…”

Section: Physiological Statusmentioning

confidence: 99%