A sensory memory to preserve visual representations across eye movements

Amir Akbarian, Kelsey Clark, Behrad Noudoost () and Neda Nategh ()
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Amir Akbarian: University of Utah
Kelsey Clark: University of Utah
Behrad Noudoost: University of Utah
Neda Nategh: University of Utah

Nature Communications, 2021, vol. 12, issue 1, 1-9

Abstract: Abstract Saccadic eye movements (saccades) disrupt the continuous flow of visual information, yet our perception of the visual world remains uninterrupted. Here we assess the representation of the visual scene across saccades from single-trial spike trains of extrastriate visual areas, using a combined electrophysiology and statistical modeling approach. Using a model-based decoder we generate a high temporal resolution readout of visual information, and identify the specific changes in neurons’ spatiotemporal sensitivity that underly an integrated perisaccadic representation of visual space. Our results show that by maintaining a memory of the visual scene, extrastriate neurons produce an uninterrupted representation of the visual world. Extrastriate neurons exhibit a late response enhancement close to the time of saccade onset, which preserves the latest pre-saccadic information until the post-saccadic flow of retinal information resumes. These results show how our brain exploits available information to maintain a representation of the scene while visual inputs are disrupted.

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-26756-0

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DOI: 10.1038/s41467-021-26756-0

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