Citation

Ma J, Gu J, Jia H, Yao Z, Chang R. Front. Psychol. 2018; 9: e459.

Affiliation

School of Psychology, Liaoning Normal University, Dalian, China.

Copyright

(Copyright © 2018, Frontiers Research Foundation)

DOI

10.3389/fpsyg.2018.00459

PMID

29670563

PMCID

PMC5893797

Abstract

A lack of task workload can lead to drivers' cognitive fatigue and vigilance decrement during a prolonged drive. This study examined the effects of speed variability on driving fatigue in a monotonous drive. Twenty-one participants participated in a 60-min simulated driving task. All participants' cognitive fatigue was assessed using psychological and physiological measurements.

RESULTS showed that among all participants, variability of vehicle speed was negatively correlated with sleepiness and hypo-vigilance during the driving task. Further, drivers in the large variability group reported less sleepiness, less fatigue, and more vigilance than those in the small variability group did during the driving task. These drivers also presented a smaller electroencephalogram spectral index (

Keywords

cognitive fatigue; fatigue countermeasures; self-regulation; simulated driving; speed variability; vigilance