Physiological correlates of mental effort as manipulated through lane width during simulated driving.

Anne-Marie Brouwer, Cris Dijksterhuis, Johannes Bernardus Fransiscus van Erp

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    Abstract

    Previous studies suggest that physiological effects of mental effort as manipulated trough cognitive task difficulty differ from effects of mental effort as manipulated trough a visuomotor task such as lane keeping in simulated driving. Most notably, heart rate increases with mental effort in the former but not in the latter task. EEG seems to be indicative of mental effort in both cases. In previous research [1], Brouwer and colleagues examined effects of mental effort as manipulated in a cognitive (memory) task on a range of physiological signals. In the present research we examine the same types of physiological signals using the same kind of analysis in a visuomotor (simulated driving) task. In this case, mental effort was manipulated using wide and narrow lanes. Effects of task difficulty on both subjective mental effort and behavioral variables were comparable across tasks. Effect of task difficulty was replicated for respiration frequency and to some extent for EEG alpha activity. However, in contrast to the cognitive task [1], skin conductance and heart rate related variables were not significantly affected by task difficulty in the current visuomotor task. We argue that differences in visual attention and cerebral energy demand between the types of tasks may be at the basis of this.
    Original languageUndefined
    Title of host publicationProceedings of the International Conference on Affective Computing and Intelligent Interaction (ACII 2015)
    Place of PublicationUSA
    PublisherIEEE Computer Society
    Pages42-48
    Number of pages7
    ISBN (Print)978-1-4799-9953-8
    DOIs
    Publication statusPublished - Sep 2015
    Event6th International Conference on Affective Computing and Intelligent Interaction, ACII 2015 - Xi'an, China
    Duration: 21 Sep 201524 Sep 2015
    Conference number: 6

    Publication series

    Name
    PublisherIEEE Computer Society

    Conference

    Conference6th International Conference on Affective Computing and Intelligent Interaction, ACII 2015
    Abbreviated titleACII
    CountryChina
    CityXi'an
    Period21/09/1524/09/15

    Keywords

    • EWI-26746
    • IR-99259
    • METIS-315561

    Cite this

    Brouwer, A-M., Dijksterhuis, C., & van Erp, J. B. F. (2015). Physiological correlates of mental effort as manipulated through lane width during simulated driving. In Proceedings of the International Conference on Affective Computing and Intelligent Interaction (ACII 2015) (pp. 42-48). USA: IEEE Computer Society. https://doi.org/10.1109/ACII.2015.7344549