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Rhythmic information sampling in the brain during visual recognition

View ORCID ProfileLaurent Caplette, View ORCID ProfileKarim Jerbi, Frédéric Gosselin
doi: https://doi.org/10.1101/2022.06.30.498324
Laurent Caplette
1Département de psychologie, Université de Montréal, Montréal, QC, Canada
2Department of psychology, Yale University, New Haven, CT, U.S.A.
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  • ORCID record for Laurent Caplette
  • For correspondence: laurent.caplette@yale.edu
Karim Jerbi
1Département de psychologie, Université de Montréal, Montréal, QC, Canada
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Frédéric Gosselin
1Département de psychologie, Université de Montréal, Montréal, QC, Canada
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Abstract

Several studies observed behavioral oscillations in perceptual sensitivity across stimulus presentation time, and these fluctuations have been linked to oscillatory processing in the brain. However, whether specific brain areas show oscillations across stimulus time (i.e., oscillatory sampling) has not been investigated. Here, we randomly revealed features of face images across time and recorded participants’ brain activity using magnetoencephalography (MEG) while they performed two recognition tasks. This allowed us to quantify how each snapshot of visual information coming from the stimulus is processed across time and across the brain. Oscillatory sampling was mostly visible in early visual areas, at theta and low beta frequencies. Furthermore, it explained a larger part of brain activity than oscillatory processing. Other parts of the brain showed distinct sampling patterns. These results advance our understanding of the oscillatory neural dynamics associated with visual processing and show the importance of considering the temporal dimension of stimuli when studying visual recognition.

Competing Interest Statement

The authors have declared no competing interest.

Copyright 
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC-ND 4.0 International license.
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Posted July 02, 2022.
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Rhythmic information sampling in the brain during visual recognition
Laurent Caplette, Karim Jerbi, Frédéric Gosselin
bioRxiv 2022.06.30.498324; doi: https://doi.org/10.1101/2022.06.30.498324
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Rhythmic information sampling in the brain during visual recognition
Laurent Caplette, Karim Jerbi, Frédéric Gosselin
bioRxiv 2022.06.30.498324; doi: https://doi.org/10.1101/2022.06.30.498324

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