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Cortical suppressive waves shape the representation of long-range apparent motion

S Chemla, A Reynaud, M di Volo, Y Zerlaut, View ORCID ProfileL Perrinet, View ORCID ProfileA Destexhe, View ORCID ProfileF Chavane
doi: https://doi.org/10.1101/372763
S Chemla
1Institut de Neurosciences de la Timone (INT), UMR 7289 CNRS & Aix-Marseille Université, 27 Bd Jean Moulin, 13385 Marseille Cedex 05, France
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A Reynaud
1Institut de Neurosciences de la Timone (INT), UMR 7289 CNRS & Aix-Marseille Université, 27 Bd Jean Moulin, 13385 Marseille Cedex 05, France
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M di Volo
2Unité de Neurosciences, Information et Complexité, Centre National de la Recherche Scientifique, FRE 3693. 1 Avenue de la terrasse, 91198 Gif sur Yvette, France
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Y Zerlaut
2Unité de Neurosciences, Information et Complexité, Centre National de la Recherche Scientifique, FRE 3693. 1 Avenue de la terrasse, 91198 Gif sur Yvette, France
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L Perrinet
1Institut de Neurosciences de la Timone (INT), UMR 7289 CNRS & Aix-Marseille Université, 27 Bd Jean Moulin, 13385 Marseille Cedex 05, France
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A Destexhe
2Unité de Neurosciences, Information et Complexité, Centre National de la Recherche Scientifique, FRE 3693. 1 Avenue de la terrasse, 91198 Gif sur Yvette, France
5European Institute for Theoretical Neuroscience, 74 Rue du Faubourg Saint-Antoine, Paris, France
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F Chavane
1Institut de Neurosciences de la Timone (INT), UMR 7289 CNRS & Aix-Marseille Université, 27 Bd Jean Moulin, 13385 Marseille Cedex 05, France
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  • For correspondence: frederic.chavane@univ-amu.fr
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Summary

How does the brain link visual stimuli across space and time? Visual illusions provide an experimental paradigm to study these processes. When two stationary dots are flashed in close spatial and temporal succession, human observers experience a percept of motion. Large spatio-temporal separation challenges the visual system to keep track of object identity along the apparent motion path. Here, we utilize voltage-sensitive dye imaging in primary visual cortex (V1) of the awake monkey to investigate whether intra-cortical connections within V1 can shape cortical dynamics to represent the illusory motion. We find that the arrival of the second stimulus in V1 creates a suppressive wave traveling toward the retinotopic representation of the first. Computational approaches show that this suppressive wave can be explained by recurrent gain control fed by the intra-cortical network and contributes to precisely encode the expected motion velocity. We suggest that non-linear intra-cortical dynamics preformat population responses in V1 for optimal read-out by downstream areas.

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The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. All rights reserved. No reuse allowed without permission.
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Posted October 09, 2018.
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Cortical suppressive waves shape the representation of long-range apparent motion
S Chemla, A Reynaud, M di Volo, Y Zerlaut, L Perrinet, A Destexhe, F Chavane
bioRxiv 372763; doi: https://doi.org/10.1101/372763
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Cortical suppressive waves shape the representation of long-range apparent motion
S Chemla, A Reynaud, M di Volo, Y Zerlaut, L Perrinet, A Destexhe, F Chavane
bioRxiv 372763; doi: https://doi.org/10.1101/372763

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