Measuring workload with electrodermal activity during common braking actions

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<title>Measuring workload with electrodermal activity during common braking actions</title>
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<dateIssued encoding="marc">2014</dateIssued>
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<abstract displayLabel="Summary">How to assess mental load remains a recurrent question. We aimed to explore whether slight differences in real-world driving task demands could be discriminated by electrodermal response (EDR). A sample of 33 participants was observed under five conditions: controlled braking from 50 to 30 km/h, 80 to 50 km/h, 50 to 0 km/h, 80 to 0 km/h, and a single unexpected emergency braking event from 80 to 0 km/h. The likelihood of EDR and, whenever present, its duration were both correlated with workload as represented by the deceleration demand. A higher base travel speed and the unexpected demand of the emergency braking situation impacted EDR, thus attesting higher workload level. EDR explains why stopping the vehicle from 50 km/h and slowing down from 80 to 50 km/h was of similar strain. The results further demonstrate that EDR measures can be successfully employed to discriminate multiple levels of workload.</abstract>
<note type="statement of responsibility">C. Collet,  E. Salvia, C. Petit-Boulanger</note>
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<title>Ergonomics : the international journal of research and practice in human factors and ergonomics</title>
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<publisher>Oxon [United Kingdom] : Taylor & Francis, 2010-</publisher>
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<identifier type="issn">0014-0139</identifier>
<identifier type="local">MAP20100019818</identifier>
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<text>02/06/2014 Volumen 57 Número 6 - junio 2014 </text>
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