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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.oanotesPer SHERPA/RoMEO 10/16/2014: Authors retain copyright. Pre-print on any website. Author's post-print on author's personal website, departmental website, institutional website or institutional repository. On other repositories including PubMed Central after 12 months embargo. Publisher copyright and source must be acknowledged. Publisher's version/PDF cannot be used. Post-print version with changes from referees comments can be used. "as published" final version with layout and copy-editing changes cannot be archived but can be used on secure institutional intranet.
kusw.oaversionScholarly/refereed, author accepted manuscript
kusw.oapolicyThis item meets KU Open Access policy criteria.

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