Bergmann, J., Petro, L. S. , Abbatecola, C. , Li, M. S., Morgan, A. T. and Muckli, L. (2024) Cortical depth profiles in primary visual cortex for illusory and imaginary experiences. Nature Communications, 15, 1002. (doi: 10.1038/s41467-024-45065-w) (PMID:38307834) (PMCID:PMC10837448)
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Abstract
Visual illusions and mental imagery are non-physical sensory experiences that involve cortical feedback processing in the primary visual cortex. Using laminar functional magnetic resonance imaging (fMRI) in two studies, we investigate if information about these internal experiences is visible in the activation patterns of different layers of primary visual cortex (V1). We find that imagery content is decodable mainly from deep layers of V1, whereas seemingly ‘real’ illusory content is decodable mainly from superficial layers. Furthermore, illusory content shares information with perceptual content, whilst imagery content does not generalise to illusory or perceptual information. Together, our results suggest that illusions and imagery, which differ immensely in their subjective experiences, also involve partially distinct early visual microcircuits. However, overlapping microcircuit recruitment might emerge based on the nuanced nature of subjective conscious experience.
| Item Type: | Articles |
|---|---|
| Additional Information: | This project has received funding from the European Union’s Horizon 2020 Framework Programme for Research and Innovation under the Specific Grant Agreement No. 720270 (Human Brain Project SGA1): awarded to L.M., 785907 (Human Brain Project SGA2): awarded to L.M., and 945539 (Human Brain Project SGA3): awarded to L.M, and Biotechnology and Biological Sciences Research Council (BBSRC BBN010956/1) ‘Layer-specific cortical feedback’ awarded to LM (with LSP). |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Petro, Dr Lucy and Muckli, Professor Lars and Abbatecola, Dr Clement and Bergmann, Dr Johanna |
| Authors: | Bergmann, J., Petro, L. S., Abbatecola, C., Li, M. S., Morgan, A. T., and Muckli, L. |
| College/School: | College of Medical Veterinary and Life Sciences > School of Psychology & Neuroscience |
| Journal Name: | Nature Communications |
| Publisher: | Nature Research |
| ISSN: | 2041-1723 |
| ISSN (Online): | 2041-1723 |
| Copyright Holders: | Copyright © The Author(s) 2024 |
| First Published: | First published in Nature Communications 15:1002 |
| Publisher Policy: | Reproduced under a Creative Commons license |
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