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Open-source event-related pupillometry using PupilEXT

Bényei, Gábor L. ; Niehorster, Diederick C. LU orcid ; Nyström, Marcus LU orcid and Pajkossy, Péter (2026) ETRA '26: 2026 Symposium on Eye Tracking Research and Applications
Abstract
In this study we compared the latencies and amplitudes of pupillary light responses, recorded by a Tobii Pro Spark eye-tracker and a setup combining PupilEXT, a free open-source software for pupillometry, with an industrial camera. Pupil size was recorded simultaneously with both systems while illumination was provided by the Spark. Results show that neither pupillary response latencies nor amplitudes differ systematically between the two, supporting the claim that PupilEXT can be used in event-related pupillometry.
Please use this url to cite or link to this publication:
author
; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
ETRA '26 : Proceedings of the 2026 Symposium on Eye Tracking Research and Applications - Proceedings of the 2026 Symposium on Eye Tracking Research and Applications
editor
Chetouani, Aladine ; Vilanueva, Arantxa ; Bruno, Alessandro and Echeverria, Rebeca
article number
47
pages
4 pages
publisher
Association for Computing Machinery (ACM)
conference name
ETRA '26: 2026 Symposium on Eye Tracking Research and Applications
conference location
Marrakesh, Morocco
conference dates
2026-06-01 - 2026-06-04
ISBN
979-8-4007-2519-7
DOI
10.1145/3797246.3805836
language
English
LU publication?
yes
id
2e3d7d94-7b5a-4657-8c2a-6cd1e3066176
date added to LUP
2026-06-01 19:03:32
date last changed
2026-06-16 13:26:51
@inproceedings{2e3d7d94-7b5a-4657-8c2a-6cd1e3066176,
  abstract     = {{In this study we compared the latencies and amplitudes of pupillary light responses, recorded by a Tobii Pro Spark eye-tracker and a setup combining PupilEXT, a free open-source software for pupillometry, with an industrial camera. Pupil size was recorded simultaneously with both systems while illumination was provided by the Spark. Results show that neither pupillary response latencies nor amplitudes differ systematically between the two, supporting the claim that PupilEXT can be used in event-related pupillometry.}},
  author       = {{Bényei, Gábor L. and Niehorster, Diederick C. and Nyström, Marcus and Pajkossy, Péter}},
  booktitle    = {{ETRA '26 : Proceedings of the 2026 Symposium on Eye Tracking Research and Applications}},
  editor       = {{Chetouani, Aladine and Vilanueva, Arantxa and Bruno, Alessandro and Echeverria, Rebeca}},
  isbn         = {{979-8-4007-2519-7}},
  language     = {{eng}},
  month        = {{05}},
  publisher    = {{Association for Computing Machinery (ACM)}},
  title        = {{Open-source event-related pupillometry using PupilEXT}},
  url          = {{http://dx.doi.org/10.1145/3797246.3805836}},
  doi          = {{10.1145/3797246.3805836}},
  year         = {{2026}},
}