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Reaction of sleepin...
Reaction of sleepiness indicators to partial sleep deprivation, time of day and time on task in a driving simulator - the DROWSI project
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- Åkerstedt, Torbjörn (författare)
- Karolinska Institutet,Stockholms universitet,Stressforskningsinstitutet,Stockholms Universitet, Karolinska Institutet,Stockholm University
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- Ingre, Michael (författare)
- Stockholms universitet,Stressforskningsinstitutet,Stockholms Universitet,Stockholm University
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- Kecklund, Göran (författare)
- Stockholms universitet,Stressforskningsinstitutet,Stockholms Universitet, Karolinska Institutet,Karolinska Institutet,Stockholm University
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visa fler...
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- Anund, Anna (författare)
- Statens väg- och transportforskningsinstitut,Samspel människa, fordon, transportsystem, MFT,Statens Väg- och Transportforskningsinstitut (VTI),The Swedish National Road and Transport Research Institute (VTI)
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- Sandberg, David, 1980 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers Tekniska Högskola
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- Wahde, Mattias, 1969 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers Tekniska Högskola
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- Philip, P. (författare)
- Centre national de la recherche scientifique (CNRS),CNRS,Volvo Group
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- Kronberg, P. (författare)
- Volvo Group,Volvo Technology
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(creator_code:org_t)
- 2009-12-28
- 2010
- Engelska.
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Ingår i: Journal of Sleep Research. - : Wiley. - 1365-2869 .- 0962-1105. ; 19:2, s. 298-309
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Abstract
Ämnesord
Stäng
- Studies of driving and sleepiness indicators have mainly focused on prior sleep reduction. The present study sought to identify sleepiness indicators responsive to several potential regulators of sleepiness: sleep loss, time of day (TOD) and time on task (TOT) during simulator driving. Thirteen subjects drove a high-fidelity moving base simulator in six 1-h sessions across a 24-h period, after normal sleep duration (8 h) and after partial sleep deprivation (PSD; 4 h). The results showed clear main effects of TOD (night) and TOT but not for PSD, although the latter strongly interacted with TOD. The most sensitive variable was subjective sleepiness, the standard deviation of lateral position (SDLAT) and measures of eye closure [duration, speed (slow), amplitude (low)]. Measures of electroencephalography and line crossings (LCs) showed only modest responses. For most variables individual differences vastly exceeded those of the fixed effects, except for subjective sleepiness and SDLAT. In a multiple regression analysis, SDLAT, amplitude/peak eye-lid closing velocity and blink duration predicted subjective sleepiness bouts with a sensitivity and specificity of about 70%, but were mutually redundant. The prediction of LCs gave considerably weaker, but similar results. In summary, SDLAT and eye closure variables could be candidates for use in sleepiness-monitoring devices. However, individual differences are considerable and there is need for research on how to identify and predict individual differences in susceptibility to sleepiness.
Ämnesord
- NATURVETENSKAP -- Data- och informationsvetenskap (hsv//swe)
- NATURAL SCIENCES -- Computer and Information Sciences (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Annan medicin och hälsovetenskap -- Övrig annan medicin och hälsovetenskap (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Other Medical and Health Sciences -- Other Medical and Health Sciences not elsewhere specified (hsv//eng)
Nyckelord
- Karolinska sleepiness scale
- accidents
- line crossings
- sleep deprivation
- time on task
- electroencephalogram
- electrooculogram
- time of day
- sleepiness
- lateral deviation
- MEDICINE
- 841 Road: Road user behaviour
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Åkerstedt, Torbj ...
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Ingre, Michael
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Kecklund, Göran
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Anund, Anna
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Sandberg, David, ...
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Wahde, Mattias, ...
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visa fler...
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Philip, P.
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Kronberg, P.
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visa färre...
- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Data och informa ...
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- MEDICIN OCH HÄLSOVETENSKAP
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MEDICIN OCH HÄLS ...
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och Annan medicin oc ...
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och Övrig annan medi ...
- Artiklar i publikationen
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Journal of Sleep ...
- Av lärosätet
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Chalmers tekniska högskola
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Stockholms universitet
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VTI - Statens väg- och transportforskningsinstitut
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Karolinska Institutet