Evidence map›Paper›PMID 32206998›Full record

ArticleBehavior research methods2020

Small eye movements cannot be reliably measured by video-based P-CR eye-trackers.

Kenneth Holmqvist, Pieter Blignaut

Open access · hybridAbstract read
In one paragraph

Article in Behavior research methods, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
5.1field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

29 citing papers in PubMed, 56 citations in OpenAlex.

  1. Article
  2. Article
  3. Revealing the benefit of eye motion for acuity under emulated cone loss.bioRxiv : the preprint server for biology · 2026
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  6. Looking for Details: Fine-Grained Visual Search at the Foveal Scale.bioRxiv : the preprint server for biology · 2025
    Article
  7. Asymmetries in Foveal Vision.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Asymmetries in foveal vision.bioRxiv : the preprint server for biology · 2024
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Foveolar Drusen Decrease Fixation Stability in Pre-Symptomatic AMD.Investigative ophthalmology & visual science · 2024
    Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors at 2 institutions in 2 countries.

Kenneth HolmqvistInstitute of Psychology, Nicolaus Copernicus University in Torun, Toruń, Poland. kenneth.holmqvist@ur.de.
Pieter BlignautDepartment of Computer Science and Informatics, University of the Free State, Bloemfontein, South Africa.
Institute of Psychology · PLUniversity of the Free State · ZA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

For evaluating whether an eye-tracker is suitable for measuring microsaccades, Poletti & Rucci (2016) propose that a measure called 'resolution' could be better than the more established root-mean-square of the sample-to-sample distances (RMS-S2S). Many open questions exist around the resolution measure, however. Resolution needs to be calculated using data from an artificial eye that can be turned in very small steps. Furthermore, resolution has an unclear and uninvestigated relationship to the RMS-S2S and STD (standard deviation) measures of precision (Holmqvist & Andersson, 2017, p. 159-190), and there is another metric by the same name (Clarke, Ditterich, Drüen, Schönfeld, and Steineke 2002), which instead quantifies the errors of amplitude measurements. In this paper, we present a mechanism, the Stepperbox, for rotating artificial eyes in arbitrary angles from 1

Indexed as

Eye, ArtificialEye MovementsEye-Tracking TechnologyVideo RecordingData CollectionHumansCorneal reflectionData qualityEye-trackerMicrosaccadePrecisionResolutionSaccade amplitude

Identifiers

PMID32206998
PMCPMC7575492
OpenAlexW3012867918

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.