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dc.contributor.authorAtchley, Paul
dc.contributor.authorChan, Mark Sai Leong
dc.contributor.authorGregersen, Sabrina
dc.identifier.citationAtchley, Paul; Chan, Mark; Gregersen, Sabrina. (2014). "A Strategically Timed Verbal Task Improves Performance and Neurophysiological Alertness During Fatiguing Drives." Human Factors, 56(3):453-462.
dc.descriptionThis is the author's accepted manuscript. The original publication is available at
dc.description.abstractObjective: The objective of this study was to investigate if a verbal task can improve alertness and if performance changes are associated with changes in alertness as measured by EEG.

Background: Previous research has shown that a secondary task can improve performance on a short, monotonous drive. The current work extends this by examining longer, fatiguing drives. The study also uses EEG to confirm that improved driving performance is concurrent with improved driver alertness.

Method: A 90-min, monotonous simulator drive was used to place drivers in a fatigued state. Four secondary tasks were used: no verbal task, continuous verbal task, late verbal task, and a passive radio task.

Results: When engaged in a secondary verbal task at the end of the drive, drivers showed improved lane-keeping performance and had improvements in neurophysiological measures of alertness.

Conclusion: A strategically timed concurrent task can improve performance even for fatiguing drives.

Application: Secondary-task countermeasures may prove useful for enhancing driving performance across a range of driving conditions.
dc.publisherSAGE Publications
dc.subjectfatigued driving
dc.subjectConcurrent task
dc.titleA Strategically Timed Verbal Task Improves Performance and Neurophysiological Alertness During Fatiguing Drives
kusw.kuauthorAtchley, Paul
kusw.kuauthorGregersen, Sabrina
kusw.oaversionScholarly/refereed, author accepted manuscript
kusw.oapolicyThis item meets KU Open Access policy criteria.

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