TY  - JOUR
PY  - 2021//
TI  - Reliability and validity of a 3-minute psychomotor vigilance task (PVT) in assessing sensitivity to sleep loss and alcohol: fitness for duty in aviation and transportation
JO  - Sleep
A1  - Benderoth, Sibylle
A1  - Hörmann, Hans-Jürgen
A1  - Schießl, Caroline
A1  - Elmenhorst, Eva-Maria
SP  - ePub
EP  - ePub
VL  - ePub
IS  - ePub
N2  - STUDY OBJECTIVES: 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. 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. <br><br>METHODS: Forty-seven healthy volunteers underwent a 12 consecutive days sleep lab protocol. A cross-over design was adopted including total sleep deprivation (TSD, 38 hours awake), sleep restriction (SR, 4 h sleep opportunity), acute alcohol consumption, and SR after alcohol intake (SR/Alc 4 h sleep opportunity). Participants performed a 10-min and 3-min PVT and operationally-relevant tasks related to demands in aviation and transportation. <br><br>RESULTS: Sleep loss resulted in significant performance impairments compared to baseline measurements detected by both PVT versions - particularly for mean speed (both p <.001) - and the operationally-relevant tasks. Similar effects were observed due to alcohol intake (speed: both p <.001). The 3-min and 10-min PVT results were highly correlated (speed: between r =.72 and r =.89). Three of four aviation related tasks showed robust correlations with the 3-min PVT. Correlations with the parameters of the task related to transportation were lower, but mainly significant. <br><br>CONCLUSION: The 3-min PVT showed a high reliability and validity in assessing sleep loss and alcohol induced impairments in cognitive performance. Thus, our results underline its usefulness as potential fitness for duty self-monitoring tool in applied settings.<p />  <p>Language: en</p>
LA  - en
SN  - 0161-8105
UR  - http://dx.doi.org/10.1093/sleep/zsab151
ID  - ref1
ER  -