Spatiotopic and saccade-specific transsaccadic memory for object detail

Lukasz Grzeczkowski*, Jonathan van Leeuwen, Artem V. Belopolsky, Heiner Deubel

*Corresponding author for this work

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

The content and nature of transsaccadic memory are still a matter of debate. Brief postsaccadic target blanking was demonstrated to recover transsaccadic memory and defeat saccadic suppression of displacement. We examined whether blanking would also support transsaccadic transfer of detailed form information. Observers saccaded to a peripheral, checkerboard-like stimulus and reported whether an intrasaccadic change had occurred in its upper or lower half. On half of the trials, the stimulus was blanked for 200 ms with saccade onset. In a fixation condition, observers kept fixation but the stimulus was displaced from periphery to fixation, mimicking the retinal events of the saccade condition. Results show that stimulus blanking improves transsaccadic change detection, with performance being far superior to the retinally equivalent fixation condition. Our findings argue in favor of a remapped memory trace that can be accessed only in the blanking condition, when not being overwritten by the salient postsaccadic stimulus.

Original languageEnglish
Article number2
Pages (from-to)1-12
Number of pages12
JournalJournal of Vision
Volume20
Issue number7
Early online date6 Jul 2020
DOIs
Publication statusPublished - Jul 2020

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