Abstract
Conversational agent (CA) technology is rapidly becoming ubiquitous. Understanding how CAs impact users on multiple levels, including physiology, thus becomes increasingly important. In this study, we examined the effects of a CA interaction on naive users’ physiological markers of stress i.e. heart rate (HR) and electrodermal activity (EDA). Participants (n = 21) prepared and executed a speech as part of a stressful interview, followed by a “Wizard-of-Oz” CA interaction. We expected the CA interactions to be mildly stressful. For a subset of participants with an initial resting period (n = 10), HR was elevated by 4.06 beats per minute (bpm) on average during the speech task, relative to the resting baseline. During the CA interaction however, HR was found to be 1.16 bpm lower on average. Moreover, HR and EDA values during the CA interaction were highly correlated with those during the resting period (Spearman’s rho: HR = 0.97, EDA = 0.96) with small differences (mean diff: HR = 1.16, EDA = 1.82). Contrary to initial expectations, users do not seem to exhibit a stress response during the CA interaction. We additionally performed similar analyses and compared our results with the Wearable Stress and Affect Detection (WESAD) dataset [1].
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Datar, S. et al. (2022). Measuring Physiological Markers of Stress During Conversational Agent Interactions. In: Shaban-Nejad, A., Michalowski, M., Bianco, S. (eds) AI for Disease Surveillance and Pandemic Intelligence. W3PHAI 2021. Studies in Computational Intelligence, vol 1013. Springer, Cham. https://doi.org/10.1007/978-3-030-93080-6_18
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DOI: https://doi.org/10.1007/978-3-030-93080-6_18
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