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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.
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https://hal.archives-ouvertes.fr/hal-03405299
Contributor : Gaelle Nicolas Connect in order to contact the contributor
Submitted on : Wednesday, October 27, 2021 - 10:51:16 AM
Last modification on : Monday, November 8, 2021 - 3:34:09 PM

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Gaëlle Nicolas, Eric Castet, Adrien Rabier, Emmanuelle Kristensen, Michel Dojat, et al.. Neural correlates of intra-saccadic motion perception. Journal of Vision, Association for Research in Vision and Ophthalmology, 2021, 21, ⟨10.1167/jov.21.11.19⟩. ⟨hal-03405299⟩

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