Citation

Duyck M, Wexler M, Castet E, Collins T. Iperception 2018; 9(3): e2041669518773111.

Affiliation

Laboratoire Psychologie de la Perception - CNRS UMR 8242, Université Paris Descartes, Paris, France.

Copyright

(Copyright © 2018, SAGE Publishing)

DOI

10.1177/2041669518773111

PMID

29780569

PMCID

PMC5952294

Abstract

Saccades are crucial to visual information intake by re-orienting the fovea to regions of interest in the visual scene. However, they cause drastic disruptions of the retinal input by shifting the retinal image at very high speeds. The resulting motion and smear are barely noticed, a phenomenon known as saccadic omission. Here, we studied the perception of motion during simulated saccades while observers fixated, moving naturalistic visual scenes across the retina with saccadic speed profiles using a very high temporal frequency display. We found that the mere presence of static pre- and post-saccadic images significantly reduces the perceived amplitude of motion but does not eliminate it entirely. This masking of motion perception could make the intra-saccadic stimulus much less salient and thus easier to ignore.

Language: en

Keywords

motion; perception/action; saccadic omission; visual temporal masking