RT Journal Article
SR Electronic
T1 Perceptual stability reflected in neuronal pattern similarities in human visual cortex
JF bioRxiv
FD Cold Spring Harbor Laboratory
SP 2022.08.02.502429
DO 10.1101/2022.08.02.502429
A1 Rotem Broday-Dvir
A1 Yitzhak Norman
A1 Michal Harel
A1 Ashesh D. Mehta
A1 Rafael Malach
YR 2022
UL http://biorxiv.org/content/early/2022/08/03/2022.08.02.502429.abstract
AB The magnitude of neuronal activation is commonly considered a critical factor for conscious perception of visual content. However, this dogma contrasts with the phenomenon of rapid adaptation, in which the magnitude of neuronal activation drops dramatically in a rapid manner, while the visual stimulus and the conscious experience it elicits remain stable. Here we report that the profiles of multi-site activation patterns and their relational geometry –i.e. the similarity distances between activation patterns, as revealed using iEEG recordings, are sustained during extended stimulation despite the major magnitude decrease. These results are compatible with the hypothesis that conscious perceptual content is associated with the neuronal pattern profiles and their similarity distances, rather than by the overall activation magnitude, in human visual cortex.Competing Interest StatementThe authors have declared no competing interest.