Measuring stress and cognitive load effects on the perceived quality of a multimodal dialogue system


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Niculescu, Andreea and Dijk, Betsy van and Cao, Yujia and Nijholt, Anton (2010) Measuring stress and cognitive load effects on the perceived quality of a multimodal dialogue system. In: 7th International Conference on Methods and Techniques in Behavioral Research: Measuring Behavior 2010, 24-27 August 2010, Eindhoven, The Netherlands (pp. pp. 453-455).

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Abstract:In this paper we present the results of a pilot study investigating the impact of stress and cognitive load on the perceived interaction quality of a multimodal dialogue system for crisis management. Four test subjects interacted with the system in four differently configured trials aiming to induce low/high levels of stress and cognitive load. To measure the level of stress and cognitive load physiological sensors and subjective ratings were collected. After each trial the subjects filled in an evaluation questionnaire regarding the system interaction quality. In the end we conducted an in-depth interview with each subject. The trials were recorded with a webcam to facilitate the behaviour analysis. Results showed that both factors have an influence on the way subjects perceived the interaction quality, whereas the cognitive load seems to have a higher impact. Further quantitative experiments are needed in order to validate the results and quantify the weight of each factor.
Item Type:Conference or Workshop Item
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Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/72616
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