Supplementary data for the paper 'Is accommodation a confounder in pupillometry research?'

doi:10.4121/13721038.v1
The doi above is for this specific version of this dataset, which is currently the latest. Newer versions may be published in the future. For a link that will always point to the latest version, please use
doi: 10.4121/13721038
Datacite citation style:
Kooijman, L. (Lars); Dodou, Dimitra; Jansen, Stefan; Themans, Tamir; Russell, Julia et. al. (2021): Supplementary data for the paper 'Is accommodation a confounder in pupillometry research?'. Version 1. 4TU.ResearchData. dataset. https://doi.org/10.4121/13721038.v1
Other citation styles (APA, Harvard, MLA, Vancouver, Chicago, IEEE) available at Datacite
Dataset
Delft University of Technology logo
usage stats
1219
views
1
citations
211
downloads
categories
licence
cc-0.png logo CC0
Much psychological research uses pupil diameter measurements for investigating the cognitive and emotional effects of visual stimuli. A potential problem is that accommodating at a nearby point constricts the pupil. This study examined to what extent accommodation is a confounder in pupillometry research. Participants solved multiplication problems at different distances (Experiment 1) and looked at line drawings with different monocular depth cues (Experiment 2) while their pupil diameter, refraction, and vergence angle were recorded using a photorefractor. Experiment 1 showed that the pupils dilated while performing the multiplications, for all presentation distances. Pupillary constriction due to accommodation was not strong enough to override pupil dilation due to cognitive load. Experiment 2 showed that monocular depth cues caused a small shift in refraction in the expected direction. We conclude that, for the young student sample we used, pupil diameter measurements are not substantially affected by accommodation.
history
  • 2021-02-12 first online, published, posted
publisher
4TU.ResearchData
associated peer-reviewed publication
Is accommodation a confounder in pupillometry research?
funding
  • A replication study of ‘pupil size as related to interest value of visual stimuli’ (Hess & Polt, 1960) (grant code 401.16.083) [more info...] Dutch Research Council
organizations
Delft University of Technology, Faculty of Mechanical, Maritime and Materials Engineering

DATA

files (1)