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Neural correlates of intra-saccadic motion perception.


ABSTRACT: Retinal motion of the visual scene is not consciously perceived during ocular saccades in normal everyday conditions. It has been suggested that extra-retinal signals actively suppress intra-saccadic motion perception to preserve stable perception of the visual world. However, using stimuli optimized to preferentially activate the M-pathway, Castet and Masson (2000) demonstrated that motion can be perceived during a saccade. Based on this psychophysical paradigm, we used electroencephalography and eye-tracking recordings to investigate the neural correlates related to the conscious perception of intra-saccadic motion. We demonstrated the effective involvement during saccades of the cortical areas V1-V2 and MT-V5, which convey motion information along the M-pathway. We also showed that individual motion perception was related to retinal temporal frequency.

SUBMITTER: Nicolas G 

PROVIDER: S-EPMC8556557 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature

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Neural correlates of intra-saccadic motion perception.

Nicolas Gaëlle G   Castet Eric E   Rabier Adrien A   Kristensen Emmanuelle E   Dojat Michel M   Guérin-Dugué Anne A  

Journal of vision 20211001 11


Retinal motion of the visual scene is not consciously perceived during ocular saccades in normal everyday conditions. It has been suggested that extra-retinal signals actively suppress intra-saccadic motion perception to preserve stable perception of the visual world. However, using stimuli optimized to preferentially activate the M-pathway, Castet and Masson (2000) demonstrated that motion can be perceived during a saccade. Based on this psychophysical paradigm, we used electroencephalography a  ...[more]

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