Ross, V., Vossen, A. Y., Smulders, F. T.Y., Ruiter, R. A.C., Brijs, T., Brijs, K., Wets, G. and Jongen, E. M.M. (2018) Measuring working memory load effects on electrophysiological markers of attention orienting during a simulated drive. Ergonomics, 61(3), pp. 429-443. (doi: 10.1080/00140139.2017.1353708) (PMID:28689462)
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Abstract
Intersection accidents result in a significant proportion of road fatalities, and attention allocation likely plays a role. Attention allocation may depend on (limited) working memory (WM) capacity. Driving is often combined with tasks increasing WM load, consequently impairing attention orienting. This study (n = 22) investigated WM load effects on event-related potentials (ERPs) related to attention orienting. A simulated driving environment allowed continuous lane-keeping measurement. Participants were asked to orient attention covertly towards the side indicated by an arrow, and to respond only to moving cars appearing on the attended side by pressing a button. WM load was manipulated using a concurrent memory task. ERPs showed typical attentional modulation (cue: contralateral negativity, LDAP; car: N1, P1, SN and P3) under low and high load conditions. With increased WM load, lane-keeping performance improved, while dual task performance degraded (memory task: increased error rate; orienting task: increased false alarms, smaller P3). Practitioner Summary: Intersection driver-support systems aim to improve traffic safety and flow. However, in-vehicle systems induce WM load, increasing the tendency to yield. Traffic flow reduces if drivers stop at inappropriate times, reducing the effectiveness of systems. Consequently, driver-support systems could include WM load measurement during driving in the development phase.
Item Type: | Articles |
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Keywords: | Physical therapy, sports therapy and rehabilitation, human factors and ergonomics. |
Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Vossen, Alexandra |
Authors: | Ross, V., Vossen, A. Y., Smulders, F. T.Y., Ruiter, R. A.C., Brijs, T., Brijs, K., Wets, G., and Jongen, E. M.M. |
College/School: | College of Medical Veterinary and Life Sciences > School of Psychology & Neuroscience |
Journal Name: | Ergonomics |
Publisher: | Taylor & Francis |
ISSN: | 0014-0139 |
ISSN (Online): | 1366-5847 |
Published Online: | 10 July 2017 |
Copyright Holders: | Copyright © 2017 Informa UK Limited, trading as Taylor and Francis Group |
First Published: | First published in Ergonomics 61(3): 429-443 |
Publisher Policy: | Reproduced in accordance with the publisher copyright policy |
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