ArticleBehavior research methods2021
Is apparent fixational drift in eye-tracking data due to filters or eyeball rotation?
Article in Behavior research methods, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed, 21 citations in OpenAlex.
- Correction for the pupil size artifact improves the measurement of fixation drift with a head-mounted pupil tracker.Behavior research methods · 2026Article
- The fundamentals of eye tracking, Part 7: Determining data quality.Behavior research methods · 2026Article
- OpenIrisDPI: An open-source digital dual Purkinje image eye tracker for visual neuroscience.Journal of neuroscience methods · 2026Article
- OpenIrisDPI: An Open-Source Digital Dual Purkinje Image Eye Tracker for Visual Neuroscience.bioRxiv : the preprint server for biology · 2025Article
- Microsaccades Tracking by Secondary Speckle Pattern Analysis.Journal of biophotonics · 2025Article
- The best fixation target revisited: New insights from retinal eye tracking.Behavior research methods · 2025Article
- LEyes: A lightweight framework for deep learning-based eye tracking using synthetic eye images.Behavior research methods · 2025Article
- The fundamentals of eye tracking part 3: How to choose an eye tracker.Behavior research methods · 2025Article
- The fundamentals of eye tracking part 4: Tools for conducting an eye tracking study.Behavior research methods · 2025Article
- The preferred retinal loci when the eyes converge.Journal of vision · 2024Article
- Precise localization of corneal reflections in eye images using deep learning trained on synthetic data.Behavior research methods · 2024Article
- GlassesValidator: A data quality tool for eye tracking glasses.Behavior research methods · 2024Article
- Eye tracking: empirical foundations for a minimal reporting guideline.Behavior research methods · 2023Review
- Can Microsaccades Be Used for Biometrics?Sensors (Basel, Switzerland) · 2022Article
- Small head movements increase and colour noise in data from five video-based P-CR eye trackers.Behavior research methods · 2022Article
- A low-cost, high-performance video-based binocular eye tracker for psychophysical research.Journal of eye movement research · 2021Article
- Evaluating three approaches to binary event-level agreement scoring. A reply to Friedman (2020).Behavior research methods · 2021Article
- Characterizing gaze position signals and synthesizing noise during fixations in eye-tracking data.Behavior research methods · 2020Article
Corrections and comments
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Authors and funding
3 authors at 3 institutions in 5 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Eye trackers are sometimes used to study the miniature eye movements such as drift that occur while observers fixate a static location on a screen. Specifically, analysis of such eye-tracking data can be performed by examining the temporal spectrum composition of the recorded gaze position signal, allowing to assess its color. However, not only rotations of the eyeball but also filters in the eye tracker may affect the signal's spectral color. Here, we therefore ask whether colored, as opposed to white, signal dynamics in eye-tracking recordings reflect fixational eye movements, or whether they are instead largely due to filters. We recorded gaze position data with five eye trackers from four pairs of human eyes performing fixation sequences, and also from artificial eyes. We examined the spectral color of the gaze position signals produced by the eye trackers, both with their filters switched on, and for unfiltered data. We found that while filtered data recorded from both human and artificial eyes were colored for all eye trackers, for most eye trackers the signal was white when examining both unfiltered human and unfiltered artificial eye data. These results suggest that color in the eye-movement recordings was due to filters for all eye trackers except the most precise eye tracker where it may partly reflect fixational eye movements. As such, researchers studying fixational eye movements should be careful to examine the properties of the filters in their eye tracker to ensure they are studying eyeball rotation and not filter properties.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.