Where an official translation is not available, Google™ Translate can be used. The home page for French-language content on this site can be found at: These translations are identified by a yellow box in the right or left rail that resembles the link below. All rights reserved.A number of pages on the Government of Saskatchewan's website have been professionally translated in French. Published by Oxford University Press on behalf of the Sleep Research Society. PVT alcohol alertness attention psychomotor vigilance reliability sensitivity sleep deprivation sleep loss sleep restriction validity. Thus, our results underline its usefulness as potential fitness for duty self-monitoring tool in applied settings. The 3-min PVT showed a high reliability and validity in assessing sleep loss and alcohol-induced impairments in cognitive performance.
Correlations with the parameters of the task related to transportation were lower, but mainly significant. Three of four aviation-related tasks showed robust correlations with the 3-min PVT. The 3-min and 10-min PVT results were highly correlated (speed: between r = 0.72 and r = 0.89). Similar effects were observed due to alcohol intake (speed: both p < 0.001). Sleep loss resulted in significant performance impairments compared with baseline measurements detected by both PVT versions-particularly for mean speed (both p < 0.001)-and the operationally relevant tasks. Participants performed a 10-min and 3-min PVT and operationally relevant tasks related to demands in aviation and transportation. A cross-over design was adopted including total sleep deprivation (38 h awake), sleep restriction (SR, 4 h sleep opportunity), acute alcohol consumption, and SR after alcohol intake (SR/Alc 4 h sleep opportunity). We investigated the reliability and validity of a 3-min PVT administered on a portable handheld device assessing sensitivity to sleep loss and alcohol in relation to a 10-min PVT and to applied tasks.Ī total of 47 healthy volunteers underwent a 12 consecutive days sleep lab protocol. The psychomotor vigilance task (PVT) is a widely used objective method to measure sustained attention, but the standard 10-min version is often impractical in operational settings.
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