The Tobii Pro Spectrum: A useful tool for studying microsaccades?

Marcus Nyström; Diederick C. Niehorster; Richard Andersson; Ignace Hooge

doi:10.3758/s13428-020-01430-3

The Tobii Pro Spectrum: A useful tool for studying microsaccades?

Marcus Nyström^*, Diederick C. Niehorster, Richard Andersson, Ignace Hooge

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

Due to its reported high sampling frequency and precision, the Tobii Pro Spectrum is of potential interest to researchers who want to study small eye movements during fixation. We test how suitable the Tobii Pro Spectrum is for research on microsaccades by computing data-quality measures and common properties of microsaccades and comparing these to the currently most used system in this field: the EyeLink 1000 Plus. Results show that the EyeLink data provide higher RMS precision and microsaccade rates compared with data acquired with the Tobii Pro Spectrum. However, both systems provide microsaccades with similar directions and shapes, as well as rates consistent with previous literature. Data acquired at 1200 Hz with the Tobii Pro Spectrum provide results that are more similar to the EyeLink, compared to data acquired at 600 Hz. We conclude that the Tobii Pro Spectrum is a useful tool for researchers investigating microsaccades.

Original language	English
Pages (from-to)	335-353
Number of pages	19
Journal	Behavior Research Methods
Volume	53
Issue number	1
DOIs	https://doi.org/10.3758/s13428-020-01430-3
Publication status	Published - Feb 2021

Keywords

EyeLink 1000 Plus
Microsaccades
Tobii Pro Spectrum

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Nyström2021_Article_TheTobiiProSpectrumAUsefulToolFinal published version, 3.75 MBLicence: CC BY

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title = "The Tobii Pro Spectrum: A useful tool for studying microsaccades?",

abstract = "Due to its reported high sampling frequency and precision, the Tobii Pro Spectrum is of potential interest to researchers who want to study small eye movements during fixation. We test how suitable the Tobii Pro Spectrum is for research on microsaccades by computing data-quality measures and common properties of microsaccades and comparing these to the currently most used system in this field: the EyeLink 1000 Plus. Results show that the EyeLink data provide higher RMS precision and microsaccade rates compared with data acquired with the Tobii Pro Spectrum. However, both systems provide microsaccades with similar directions and shapes, as well as rates consistent with previous literature. Data acquired at 1200 Hz with the Tobii Pro Spectrum provide results that are more similar to the EyeLink, compared to data acquired at 600 Hz. We conclude that the Tobii Pro Spectrum is a useful tool for researchers investigating microsaccades.",

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doi = "10.3758/s13428-020-01430-3",

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AU - Hooge, Ignace

PY - 2021/2

Y1 - 2021/2

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The Tobii Pro Spectrum: A useful tool for studying microsaccades?

Abstract

Keywords

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