Object-mediated overwriting across saccades

How are visual sensory representations that are acquired peripherally from a saccade target related to sensory representations generated foveally after the saccade? We tested the hypothesis that, when the two representations are perceived to belong to the same object, the post-saccadic value tends t...

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Bibliographic Details
Published in:Journal of vision (Charlottesville, Va.) Va.), 2021-02, Vol.21 (2), p.3
Main Authors: Tas, A Caglar, Mordkoff, J Toby, Hollingworth, Andrew
Format: Article
Language:English
Subjects:
Adolescent
Adult
Female
Humans
Male
Perceptual Masking - physiology
Saccades - physiology
Visual Perception - physiology
Young Adult
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Summary:How are visual sensory representations that are acquired peripherally from a saccade target related to sensory representations generated foveally after the saccade? We tested the hypothesis that, when the two representations are perceived to belong to the same object, the post-saccadic value tends to overwrite the pre-saccadic value. Participants executed a saccade to a colored target object, which sometimes changed during the saccade by ±15°, 30°, or 45° in color space. They were post-cued to report either the pre-saccadic or post-saccadic color in a continuous report procedure. Substantial overwriting of the pre-saccadic color by the post-saccadic color was observed. Moreover, the introduction of a brief post-saccadic blank interval (which disrupted the perception of object correspondence) led to a substantial reduction in overwriting. The results provide the first direct evidence for an object-mediated overwriting mechanism across saccades, in which post-saccadic values automatically replace pre-saccadic values.
ISSN:1534-7362
1534-7362
DOI:10.1167/jov.21.2.3