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Multimedia Tools and Applications

, Volume 56, Issue 3, pp 553–567 | Cite as

Dual-task performance in multimodal human-computer interaction: a psychophysiological perspective

  • Domen NovakEmail author
  • Matjaž Mihelj
  • Marko Munih
Article

Abstract

This paper examines the psychophysiological effects of mental workload in single-task and dual-task human-computer interaction. A mental arithmetic task and a manual error correction task were performed both separately and concurrently on a computer using verbal and haptic input devices. Heart rate, skin conductance, respiration and peripheral skin temperature were recorded in addition to objective performance measures and self-report questionnaires. Analysis of psychophysiological responses found significant changes from baseline for both single-task and dual-task conditions. There were also significant psychophysiological differences between the mental arithmetic task and the manual error correction task, but no differences in questionnaire results. Additionally, there was no significant psychophysiological difference between performing only the mental arithmetic task and performing both tasks at once. These findings suggest that psychophysiological measures respond differently to different types of tasks and that they do not always agree with performance or with participants’ subjective feelings.

Keywords

Psychophysiology Affective computing Multitasking Human-computer interaction Mental workload 

Notes

Acknowledgments

The authors would like to thank the volunteers who participated in this study. The work was funded by the EU Information and Communication Technologies Collaborative Project MIMICS grant 215756 and additionally supported by the Slovenian Research Agency.

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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  1. 1.Faculty of Electrical EngineeringUniversity of LjubljanaLjubljanaSlovenia

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