Drivers’ misjudgement of vigilance state during prolonged monotonous daytime driving |
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| Authors: | Eike A. Schmidt Michael Schrauf Michael Simon Martin Fritzsche Axel Buchner Wilhelm E. Kincses |
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| Affiliation: | aDaimler AG, Research and Development, HPC H602, Leibnizstr. 2, D-71032 Böblingen, Germany;bHeinrich-Heine-University Düsseldorf, Institut für Experimentelle Psychologie, Universitätsstr. 1, D-40225 Düsseldorf, Germany;cUniversity of Tübingen, Wilhelm-Schickard-Institut für Informatik, Sand 13, D-72076 Tübingen, Germany |
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| Abstract: | To investigate the effects of monotonous daytime driving on vigilance state and particularly the ability to judge this state, a real road driving study was conducted. To objectively assess vigilance state, performance (auditory reaction time) and physiological measures (EEG: alpha spindle rate, P3 amplitude; ECG: heart rate) were recorded continuously. Drivers judged sleepiness, attention to the driving task and monotony retrospectively every 20 min. Results showed that prolonged daytime driving under monotonous conditions leads to a continuous reduction in vigilance. Towards the end of the drive, drivers reported a subjectively improved vigilance state, which was contrary to the continued decrease in vigilance as indicated by all performance and physiological measures. These findings indicate a lack of self-assessment abilities after approximately 3 h of continuous monotonous daytime driving. |
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| Keywords: | Vigilance Driving Monotony Self-assessment Performance EEG ECG |
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