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  Perceived and mentally rotated contents are differentially represented in cortical depth of V1

Iamshchinina, P., Kaiser, D., Yakupov, R., Haenelt, D., Sciarra, A., Mattern, H., et al. (2021). Perceived and mentally rotated contents are differentially represented in cortical depth of V1. Communications Biology, 4: 1069. doi:10.1038/s42003-021-02582-4.

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 Creators:
Iamshchinina, Polina1, 2, Author
Kaiser, Daniel3, Author
Yakupov, Renat4, Author
Haenelt, Daniel5, Author              
Sciarra, Alessandro6, 7, Author
Mattern, Hendrik6, Author
Luesebrink, Falk6, 7, Author
Duezel, Emrah4, 8, Author
Speck, Oliver4, 6, 8, 9, Author
Weiskopf, Nikolaus5, 10, Author              
Cichy, Radoslaw Martin1, 2, Author
Affiliations:
1Department of Education and Psychology, FU Berlin, Germany, ou_persistent22              
2Berlin School of Mind and Brain, Humboldt University Berlin, Germany, ou_persistent22              
3Department of Psychology, University of York, Heslington, United Kingdom, ou_persistent22              
4German Center for Neurodegenerative Diseases, Magdeburg, Germany, ou_persistent22              
5Department Neurophysics (Weiskopf), MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_2205649              
6Department of Biomedical Magnetic Resonance, Institute of Experimental Physics, Otto von Guericke University Magdeburg, Germany, ou_persistent22              
7Department of Neurology, Otto von Guericke University Magdeburg, Germany, ou_persistent22              
8Center for Behavioral Brain Sciences, Magdeburg, Germany, ou_persistent22              
9Leibniz Institute for Neurobiology, Magdeburg, Germany, ou_persistent22              
10Felix Bloch Institute for Solid State Physics, University of Leipzig, Germany, ou_persistent22              

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 Abstract: Primary visual cortex (V1) in humans is known to represent both veridically perceived external input and internally-generated contents underlying imagery and mental rotation. However, it is unknown how the brain keeps these contents separate thus avoiding a mixture of the perceived and the imagined which could lead to potentially detrimental consequences. Inspired by neuroanatomical studies showing that feedforward and feedback connections in V1 terminate in different cortical layers, we hypothesized that this anatomical compartmentalization underlies functional segregation of external and internally-generated visual contents, respectively. We used high-resolution layer-specific fMRI to test this hypothesis in a mental rotation task. We found that rotated contents were predominant at outer cortical depth bins (i.e. superficial and deep). At the same time perceived contents were represented stronger at the middle cortical bin. These results identify how through cortical depth compartmentalization V1 functionally segregates rather than confuses external from internally-generated visual contents. These results indicate that feedforward and feedback manifest in distinct subdivisions of the early visual cortex, thereby reflecting a general strategy for implementing multiple cognitive functions within a single brain region.

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 Dates: 2020-11-162021-08-202021-09-14
 Publication Status: Published online
 Pages: -
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 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1038/s42003-021-02582-4
PMID: 34521987
PMC: PMC8440580
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Grant ID : KA4683/2-1, CI241/1-1, CI241/3-1
Funding program : -
Funding organization : Deutsche Forschungsgemeinschaft (DFG)
Project name : -
Grant ID : 616905
Funding program : -
Funding organization : European Research Council
Project name : Horizon 2020
Grant ID : 681094
Funding program : -
Funding organization : European Union
Project name : -
Grant ID : 01EW1711A & B
Funding program : -
Funding organization : Bundesministerium für Bildung und Forschung

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Title: Communications Biology
Source Genre: Journal
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Publ. Info: London : Springer Nature
Pages: - Volume / Issue: 4 Sequence Number: 1069 Start / End Page: - Identifier: ISSN: 2399-3642
CoNE: https://pure.mpg.de/cone/journals/resource/2399-3642