Measuring Physiological Markers of Stress During Conversational Agent Interactions

Shreya Datar, Libby Ferland, Esther Foo, Michael Kotlyar, Brad Holschuh, Maria Gini, Martin Michalowski, Serguei Pakhomov

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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].

Original languageEnglish (US)
Title of host publicationAI for Disease Surveillance and Pandemic Intelligence - Intelligent Disease Detection in Action
EditorsArash Shaban-Nejad, Martin Michalowski, Simone Bianco
PublisherSpringer Science and Business Media Deutschland GmbH
Pages247-265
Number of pages19
ISBN (Print)9783030930790
DOIs
StatePublished - 2022
Event5th International Workshop on Health Intelligence, W3PHAI 2021 held in conjection with 35th AAAI Conference on Artificial Intelligence, AAAI 2021 - Virtual, Online
Duration: Feb 8 2021Feb 9 2021

Publication series

NameStudies in Computational Intelligence
Volume1013
ISSN (Print)1860-949X
ISSN (Electronic)1860-9503

Conference

Conference5th International Workshop on Health Intelligence, W3PHAI 2021 held in conjection with 35th AAAI Conference on Artificial Intelligence, AAAI 2021
CityVirtual, Online
Period2/8/212/9/21

Bibliographical note

Publisher Copyright:
© 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.

Keywords

  • Conversational agent interactions
  • Physiological signal data
  • Stress detection
  • Wearable haptic garment
  • Wrist-worn device

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