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Anticipating human error before it happens: Towards a psychophysiological model for online prediction of mental workload

Gagnon, Jean-François and Durantin, Gauthier and Vachon, François and Causse, Mickaël and Tremblay, Sébastien and Dehais, Frédéric Anticipating human error before it happens: Towards a psychophysiological model for online prediction of mental workload. (2012) In: Human Factors Ergonomics Society (HFES 2012) Chapter Europe, 10 October 2012 - 12 October 2012 (Toulouse, France).

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Official URL: http://books.hfes-europe.org/


Mental workload is a key factor influencing the occurrence of human error; specifically in remotely-operated vehicle operations. Both low and high mental workload has been found to disrupt performance in a nonlinear fashion at a given task; however, research that has attempted to predict individual mental workload has met with little success. The objective of the present study is to investigate the potential of the dual-task paradigm and prefrontal cortex oxygenation as online measures of mental workload. Subjects performed a computerized object tracking task in which they had to follow a dynamic target with their aircraft. Task difficulty was manipulated in terms of processing load and difficulty of control: two critical sources of workload associated with remotely operating a vehicle. Mental workload was assessed by a secondary concurrent time production task and a functional near infrared spectrometer. Results show that the effects of task difficulty differ across measures of mental workload. This pattern of behavioural and neurophysiologic results suggests that the empirically-based selection of an appropriate secondary task for the measure of mental workload is critical as its sensitivity may vary considerably depending on task factors.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Human Factors: a view from an integrative perspective On the occasion of the Human Factors and Ergonomics Society Europe Chapter Annual Meeting in Toulouse, France, October 2012. Edited by Dick de Waard, Karel Brookhuis, Frédéric Dehais, Clemens Weikert, Stefan Röttger, Dietrich Manzey, Sonja Biede, Florence Reuzeau, and Patrice Terrier (Eds.) ISBN 978-0-945289-44-9
Audience (conference):International conference proceedings
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Institution:Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Other partners > Université Laval (CANADA)
Laboratory name:
Deposited On:17 Jun 2014 16:16

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