Time order reversals and saccades

Kresevic, Jesse L., Marinovic, Welber, Johnston, Alan and Arnold, Derek H. (2016) Time order reversals and saccades. Vision Research, 125 23-29. doi:10.1016/j.visres.2016.04.005

Author Kresevic, Jesse L.
Marinovic, Welber
Johnston, Alan
Arnold, Derek H.
Title Time order reversals and saccades
Journal name Vision Research   Check publisher's open access policy
ISSN 1878-5646
Publication date 2016-08-01
Year available 2016
Sub-type Article (original research)
DOI 10.1016/j.visres.2016.04.005
Open Access Status Not yet assessed
Volume 125
Start page 23
End page 29
Total pages 7
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon Press
Language eng
Subject 2731 Ophthalmology
2809 Sensory Systems
Abstract Ballistic eye movements, or saccades, present a major challenge to the visual system. They generate a rapid blur of movement across the surface of the retinae that is rarely consciously seen, as awareness of input is suppressed around the time of a saccade. Saccades are also associated with a number of perceptual distortions. Here we are primarily interested in a saccade-induced illusory reversal of apparent temporal order. We examine the apparent order of transient targets presented around the time of saccades. In agreement with previous reports, we find evidence for an illusory reversal of apparent temporal order when the second of two targets is presented during a saccade - but this is only apparent for some observers. This contrasts with the apparent salience of targets presented during a saccade, which is suppressed for all observers. Our data suggest that separable processes might underlie saccadic suppressions of salience and saccade-induced reversals of apparent order. We suggest the latter arises when neural transients, normally used for timing judgments, are suppressed due to a saccade - but that this is an insufficient pre-condition. We therefore make the further suggestion, that the loss of a neural transient must be coupled with a specific inferential strategy, whereby some people assume that when they lack a clear impression of event timing, that event must have happened less recently than alternate events for which they have a clear impression of timing.
Keyword Eye movement
Order reversal
Time perception
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: HERDC Pre-Audit
School of Health and Rehabilitation Sciences Publications
School of Psychology Publications
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