Studying Eye Movements as a Basis for Measuring Cognitive Load

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2018
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SFB TRR 161 TP C 01 Quantitative Messung von Interaktion
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Extended Abstracts of the 2018 CHI Conference on Human Factors in Computing Systems. New York, NY: ACM Press, 2018, LBW095. ISBN 978-1-4503-5621-3. Available under: doi: 10.1145/3170427.3188628
Zusammenfassung

Users' cognitive load while interacting with a system is a valuable metric for evaluations in HCI. We encourage the analysis of eye movements as an unobtrusive and widely available way to measure cognitive load. In this paper, we report initial findings from a user study with 26 participants working on three visual search tasks that represent different levels of difficulty. Also, we linearly increased the cognitive demand while solving the tasks. This allowed us to analyze the reaction of individual eye movements to different levels of task difficulty. Our results show how pupil dilation, blink rate, and the number of fixations and saccades per second individually react to changes in cognitive activity. We discuss how these measurements could be combined in future work to allow for a comprehensive investigation of cognitive load in interactive settings.

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004 Informatik
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cognitive load; eye tracking; evaluation
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CHI EA '18 : CHI Conference on Human Factors in Computing Systems, 21. Apr. 2018 - 26. Apr. 2018, Montreal, Canada
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Zitieren
ISO 690ZAGERMANN, Johannes, Ulrike PFEIL, Harald REITERER, 2018. Studying Eye Movements as a Basis for Measuring Cognitive Load. CHI EA '18 : CHI Conference on Human Factors in Computing Systems. Montreal, Canada, 21. Apr. 2018 - 26. Apr. 2018. In: Extended Abstracts of the 2018 CHI Conference on Human Factors in Computing Systems. New York, NY: ACM Press, 2018, LBW095. ISBN 978-1-4503-5621-3. Available under: doi: 10.1145/3170427.3188628
BibTex
@inproceedings{Zagermann2018Study-43106,
  year={2018},
  doi={10.1145/3170427.3188628},
  title={Studying Eye Movements as a Basis for Measuring Cognitive Load},
  isbn={978-1-4503-5621-3},
  publisher={ACM Press},
  address={New York, NY},
  booktitle={Extended Abstracts of the 2018 CHI Conference on Human Factors in Computing Systems},
  author={Zagermann, Johannes and Pfeil, Ulrike and Reiterer, Harald},
  note={Article Number: LBW095}
}
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