Driver sleepiness—Comparisons between young and older men during a monotonous afternoon simulated drive

Filtness, Ashleigh J., Reyner, Louise A., & Horne, James A. (2012) Driver sleepiness—Comparisons between young and older men during a monotonous afternoon simulated drive. Biological Psychology, 89(3), pp. 580-583.

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Young men figure prominently in sleep-related road crashes. Non-driving studies show them to be particularly vulnerable to sleep loss, compared with older men. We assessed the effect of a normal night's sleep vs. prior sleep restricted to 5 h, in a counterbalanced design, on prolonged (2 h) afternoon simulated driving in 20 younger (av. 23 y) and 19 older (av. 67 y) healthy men. Driving was monitored for sleepiness related lane deviations, EEGs were recorded continuously and subjective ratings of sleepiness taken every 200 s. Following normal sleep there were no differences between groups for any measure. After sleep restriction younger drivers showed significantly more sleepiness-related deviations and greater 4–11 Hz EEG power, indicative of sleepiness. There was a near significant increase in subjective sleepiness. Correlations between the EEG and subjective measures were highly significant for both groups, indicating good self-insight into increasing sleepiness. We confirm the greater vulnerability of younger drivers to sleep loss under prolonged afternoon driving.

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ID Code: 63469
Item Type: Journal Article
Refereed: Yes
Keywords: Sleepiness, Driving ability, Age effects, Road safety, Driving simulator
DOI: 10.1016/j.biopsycho.2012.01.002
ISSN: 03010511
Divisions: Current > Research Centres > Centre for Accident Research & Road Safety - Qld (CARRS-Q)
Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Current > Schools > School of Psychology & Counselling
Copyright Owner: Copyright 2012 Elsevier B.V.
Copyright Statement: NOTICE: this is the author’s version of a work that was accepted for publication in Biological Psychology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Biological Psychology, [Volume 89, Issue 3, (March 2012)] DOI: 10.1016/j.biopsycho.2012.01.002
Deposited On: 17 Oct 2013 23:39
Last Modified: 07 Apr 2014 05:12

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