Eye-pointer coordination in a decision-making task under uncertainty

Catia Cepeda, Maria Camila Dias, Dina Rindlisbacher, Marcus Cheetham, Hugo Gamboa

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Eye-tracking (ET) systems, which capture eye movements, are often used to measure human behavior while interacting with a user interface. Given the high costs and challenges of acquiring, installing and ensuring good calibration of ET systems, the use of pointer (or mouse) tracking is gaining interest as a viable alternative in research on human-computer interaction. In this study, we measured and evaluated temporal and spatial relationships between eye and pointer movements in a standardized task that allowed us to examine the relationship between eye and pointer movements while participants made decisions under conditions of high and low uncertainty. We collected data from N=81 participants and applied a range of metrics to a total of 5205 decision trials. The overall findings show that the convergence between eye and pointer movements is consistently high. Importantly, there are differences in levels of convergence depending on the temporal, spatial and combined temporo-spatial metrics used. There are also differences in eye-pointer convergence depending on the relative level of decision uncertainty in the task. In conclusion, the present findings favour the use of pointer tracking to analyse human-computer interaction in more complex tasks.

Original languageEnglish
Title of host publicationBIOSIGNALS 2020 - 13th International Conference on Bio-Inspired Systems and Signal Processing, Proceedings; Part of 13th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2020
EditorsPedro Gomez Vilda, Ana Fred, Hugo Gamboa
PublisherSciTePress
Pages30-37
Number of pages8
ISBN (Electronic)9789897583988
DOIs
Publication statusPublished - 2020
Event13th International Conference on Bio-Inspired Systems and Signal Processing, BIOSIGNALS 2020 - Part of 13th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2020 - Valletta, Malta
Duration: 24 Feb 202026 Feb 2020

Conference

Conference13th International Conference on Bio-Inspired Systems and Signal Processing, BIOSIGNALS 2020 - Part of 13th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2020
CountryMalta
CityValletta
Period24/02/2026/02/20

Keywords

  • Decision making
  • Eye-tracking
  • Human Computer Interaction
  • Pointer-tracking
  • Uncertainty

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