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126:(Reaction Self Test) provides the crewmembers with feedback on neurobehavioral changes in vigilant attention, state stability, and impulsivity. It aids crewmembers to objectively identify when their performance capability is degraded by various fatigue-related conditions that can occur as a result of ISS operations and time in space (e.g., acute and chronic sleep restriction, slam shifts, extravehicular activity (EVA), and residual sedation from sleep medications). The test is ideal for use in space flight because unlike other
114:), but rather to see how many times the button is not pressed when the light is on . The purpose of the PVT is to measure sustained attention, and give a numerical measure of sleepiness by counting the number of lapses in attention of the tested subject.
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The PVT is a simple task where the subject presses a button as soon as the light appears. The light will turn on randomly every few seconds for 5–10 minutes. The main measurement of this task is not to assess the reaction time
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Meditation acutely improves psychomotor vigilance, and may decrease sleep need. Prashant Kaul, Jason
Passafiume, R C Sargent and Bruce F O'Hara. Behavioral and Brain Functions 2010, 6:47 doi:10.1186/1744-9081-6-47
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Horne, J; Pettitt, A N (Feb 1985). "High incentive effects on vigilance performance during 72 hours of total sleep deprivation." . Acta psychologica (Amsterdam : North
Holland Publishing) 58(2): 123–139.
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Dinges, D. I, & Powell, J. W. (1985). Microcomputer analysis of performance on a portable, simple visual RT task sustained operations. Behavior
Research Methods, Instrumentation, and Computers, 17,
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Walker, M. P. (2009, October 21). *Sleep
Deprivation III: Brain consequences – Attention, concentration and real life.* Lecture given in Psychology 133 at the University of California, Berkeley, CA
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can counteract the detrimental effects of sleep loss for up to 36 hours.
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acutely improves psychomotor vigilance, and may decrease sleep need.
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Boen, B. (n.d.). International space station. Retrieved from
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and popularized by its ease of scoring, simple metrics, and
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100:Screen shot of PEBL's Perceptual Vigilance Test
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