Evidence map›Paper›PMID 29440494›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2018

Execution of saccadic eye movements affects speed perception.

Alexander Goettker, Doris I Braun, Alexander C Schütz, Karl R Gegenfurtner

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
–field-weighted citation impact
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

19 citing papers in PubMed.

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  17. Predicting the Partition of Behavioral Variability in Speed Perception with Naturalistic Stimuli.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020
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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

4 authors.

Alexander GoettkerAbteilung Allgemeine Psychologie, Justus Liebig University Giessen, 35394 Giessen, Germany.
Doris I BraunAbteilung Allgemeine Psychologie, Justus Liebig University Giessen, 35394 Giessen, Germany.
Alexander C SchützDepartment of Psychology, Philipps University of Marburg, 35032 Marburg, Germany.
Karl R GegenfurtnerAbteilung Allgemeine Psychologie, Justus Liebig University Giessen, 35394 Giessen, Germany; Karl.R.Gegenfurtner@psychol.uni-giessen.de.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Due to the foveal organization of our visual system we have to constantly move our eyes to gain precise information about our environment. Doing so massively alters the retinal input. This is problematic for the perception of moving objects, because physical motion and retinal motion become decoupled and the brain has to discount the eye movements to recover the speed of moving objects. Two different types of eye movements, pursuit and saccades, are combined for tracking. We investigated how the way we track moving targets can affect the perceived target speed. We found that the execution of corrective saccades during pursuit initiation modifies how fast the target is perceived compared with pure pursuit. When participants executed a forward (catch-up) saccade they perceived the target to be moving faster. When they executed a backward saccade they perceived the target to be moving more slowly. Variations in pursuit velocity without corrective saccades did not affect perceptual judgments. We present a model for these effects, assuming that the eye velocity signal for small corrective saccades gets integrated with the retinal velocity signal during pursuit. In our model, the execution of corrective saccades modulates the integration of these two signals by giving less weight to the retinal information around the time of corrective saccades.

Indexed as

Motion PerceptionPhotic StimulationAdultBrainFemaleFovea CentralisHumansMaleMotionNormal DistributionReproducibility of ResultsRetinaSaccadesYoung Adulteye movementsmotion perceptionsaccadessmooth pursuitvisual perception

Identifiers

PMID29440494
PMCPMC5834663

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.