SwePub
Tyck till om SwePub Sök här!
Sök i LIBRIS databas

  Utökad sökning

onr:"swepub:oai:DiVA.org:vti-12617"
 

Sökning: onr:"swepub:oai:DiVA.org:vti-12617" > The effect of dayli...

The effect of daylight versus darkness on driver sleepiness : A driving simulator study

Ahlström, Christer, 1977- (författare)
Statens väg- och transportforskningsinstitut,Trafikanttillstånd, TIL,Swedish Natl Rd and Transport Res Inst VTI, Linkoping, Sweden
Anund, Anna, 1964- (författare)
Linköpings universitet,Statens väg- och transportforskningsinstitut,Trafikanttillstånd, TIL,Avdelningen för prevention, rehabilitering och nära vård,Medicinska fakulteten,Swedish Natl Rd and Transport Res Inst VTI, Linkoping, Sweden
Fors, Carina, 1978- (författare)
Statens väg- och transportforskningsinstitut,Trafikanttillstånd, TIL,Swedish Natl Rd and Transport Res Inst VTI, Linkoping, Sweden
visa fler...
Åkerstedt, Torbjörn (författare)
Karolinska Institutet,Stockholms universitet,Stressforskningsinstitutet,Karolinska Institute, Sweden,Stockholm Univ, Sweden; Karolinska Inst, Sweden,Stockholms Universitet
visa färre...
 (creator_code:org_t)
2017-11-22
2017
Engelska.
Ingår i: Journal of Sleep Research. - : Wiley-Blackwell Publishing Inc.. - 0962-1105 .- 1365-2869.
Relaterad länk:
https://onlinelibrar...
visa fler...
https://urn.kb.se/re...
https://doi.org/10.1...
https://urn.kb.se/re...
http://kipublication...
https://urn.kb.se/re...
visa färre...
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • Driver sleepiness studies are often carried out with alert drivers during daytime and sleep-deprived drivers during night-time. This design results in a mixture of different factors (e.g. circadian effects, homeostatic effects, light conditions) that may confound the results. The aim of this study was to investigate the effect of light conditions on driver sleepiness. Thirty young male drivers (23.6 ± 1.7 years old) participated in a driving simulator experiment where they drove on a rural road. A 2 × 2 design was used with the conditions daylight versus darkness, and daytime (full sleep) versus night-time (sleep deprived). The results show that light condition had an independent effect on the sleepiness variables. The subjective sleepiness measured by Karolinska Sleepiness Scale was higher, lateral position more left-oriented, speed lower, electroencephalogram alpha and theta higher, and blink durations were longer during darkness. The number of line crossings did not change significantly with light condition. The day/night condition had profound effects on most sleepiness indicators while controlling for light condition. The number of line crossings was higher during night driving, Karolinska Sleepiness Scale was higher, blink durations were longer and speed was lower. There were no significant interactions, indicating that light conditions have an additive effect on sleepiness. In conclusion, Karolinska Sleepiness Scale and blink durations increase primarily with sleep deprivation, but also as an effect of darkness. Line crossings are mainly driven by the need for sleep and the reduced alertness at the circadian nadir. Lane position is, however, more determined by light conditions than by sleepiness.

Ämnesord

SAMHÄLLSVETENSKAP  -- Psykologi -- Tillämpad psykologi (hsv//swe)
SOCIAL SCIENCES  -- Psychology -- Applied Psychology (hsv//eng)
TEKNIK OCH TEKNOLOGIER  -- Samhällsbyggnadsteknik -- Transportteknik och logistik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Civil Engineering -- Transport Systems and Logistics (hsv//eng)

Nyckelord

Tiredness
Driver
Daylight
Simulator (driving)
Performance (road user)
84 Road: Road users
84 Road: Road users

Publikations- och innehållstyp

ref (ämneskategori)
art (ämneskategori)

Hitta via bibliotek

Till lärosätets databas

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy