期刊
BEHAVIOR RESEARCH METHODS
卷 54, 期 4, 页码 1663-1687出版社
SPRINGER
DOI: 10.3758/s13428-021-01703-5
关键词
Attention; eye tracking; online experiments; JavaScript; open-source; cyberpsychology
资金
- Whitman College's Technology Experimentation Fund
- Templeton World Charity Foundation [TWCF0159]
- UK Medical Research Council [MC-A0606-5PQ41]
MouseView.js is an alternative to eye tracking in web-based research, providing a reliable and valid instrument for attention-tracking. Inspired by the visual system, MouseView.js blurs the display to mimic peripheral vision while allowing participants to move a sharp aperture for fixating on stimuli of interest.
Psychological research is increasingly moving online, where web-based studies allow for data collection at scale. Behavioural researchers are well supported by existing tools for participant recruitment, and for building and running experiments with decent timing. However, not all techniques are portable to the Internet: While eye tracking works in tightly controlled lab conditions, webcam-based eye tracking suffers from high attrition and poorer quality due to basic limitations like webcam availability, poor image quality, and reflections on glasses and the cornea. Here we present MouseView.js, an alternative to eye tracking that can be employed in web-based research. Inspired by the visual system, MouseView.js blurs the display to mimic peripheral vision, but allows participants to move a sharp aperture that is roughly the size of the fovea. Like eye gaze, the aperture can be directed to fixate on stimuli of interest. We validated MouseView.js in an online replication (N = 165) of an established free viewing task (N = 83 existing eye-tracking datasets), and in an in-lab direct comparison with eye tracking in the same participants (N = 50). Mouseview.js proved as reliable as gaze, and produced the same pattern of dwell time results. In addition, dwell time differences from MouseView.js and from eye tracking correlated highly, and related to self-report measures in similar ways. The tool is open-source, implemented in JavaScript, and usable as a standalone library, or within Gorilla, jsPsych, and PsychoJS. In sum, MouseView.js is a freely available instrument for attention-tracking that is both reliable and valid, and that can replace eye tracking in certain web-based psychological experiments.
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