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  Visually-driven maps in area 3b

Kuehn, E., Haggard, P., Villringer, A., Pleger, B., & Sereno, M. I. (2018). Visually-driven maps in area 3b. The Journal of Neuroscience, 38(5), 1295-1310. doi:10.1523/JNEUROSCI.0491-17.2017.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0000-77EA-3 Version Permalink: http://hdl.handle.net/21.11116/0000-0006-8033-F
Genre: Journal Article

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 Creators:
Kuehn, Esther1, 2, 3, 4, Author              
Haggard, Patrick5, Author
Villringer, Arno1, Author              
Pleger, Burkhard6, Author              
Sereno, Martin I.2, Author
Affiliations:
1Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634549              
2Department of Psychology and Language Sciences, University College London, United Kingdom, ou_persistent22              
3Center for Behavioral Brain Sciences, Magdeburg, Germany, ou_persistent22              
4Aging and Cognition Research Group, German Center for Neurodegenerative Diseases, Magdeburg, Germany, ou_persistent22              
5Institute of Cognitive Neuroscience, University College London, United Kingdom, ou_persistent22              
6Department of Neurology, University Hospital Bergmannsheil, Bochum, Germany, ou_persistent22              

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Free keywords: Area 3b; Multisensory integration; Somatotopy; Touch; Vision; Visuotactile mapping
 Abstract: Sensory perception relies on the precise neuronal encoding of modality-specific environmental features in primary sensory cortices. Some studies have reported the penetration of signals from other modalities even into early sensory areas. So far, no comprehensive account of maps induced by “foreign sources” exists. We addressed this question using surface-based topographic mapping techniques applied to ultra-high resolution fMRI neuroimaging data, measured in female participants. We show that fine-grained finger maps in human primary somatosensory cortex, area 3b, are somatotopically activated not only during tactile mechanical stimulation, but also when viewing the same fingers being touched. Visually-induced maps were weak in amplitude, but overlapped with the stronger tactile maps tangential to the cortical sheet when finger touches were observed in both first- and third-person perspectives. However, visually-induced maps did not overlap tactile maps when the observed fingers were only approached by an object but not actually touched. Our data provide evidence that “foreign source maps” in early sensory cortices are present in the healthy human brain, that their arrangement is precise, and that their induction is feature-selective. The computations required to generate such specific responses suggest that counterflow (feedback) processing may be much more spatially specific than has been often assumed.

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Language(s): eng - English
 Dates: 2017-11-282017-02-212017-12-012018-01-042018-01-31
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1523/JNEUROSCI.0491-17.2017
PMID: 29301873
Other: Epub 2018
 Degree: -

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Project name : -
Grant ID : SAS-2015_LIN_LWC
Funding program : -
Funding organization : CBBS ScienceCampus - Leibniz Association
Project name : Integration and Representation of Sensory Processes / SFB 874
Grant ID : -
Funding program : -
Funding organization : Deutsche Forschungsgemeinschaft (DFG)
Project name : -
Grant ID : -
Funding program : Collaboration between MPI CBS and DZNE site Magdeburg
Funding organization : Max Planck Institute for Human Cognitive and Brain Sciences and Deutsches Zentrum für Neurodegenerative Erkrankungen, Magdeburg

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Title: The Journal of Neuroscience
  Other : The Journal of Neuroscience: the Official Journal of the Society for Neuroscience
  Abbreviation : J. Neurosci.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Washington, DC : Society of Neuroscience
Pages: - Volume / Issue: 38 (5) Sequence Number: - Start / End Page: 1295 - 1310 Identifier: ISSN: 0270-6474
CoNE: https://pure.mpg.de/cone/journals/resource/954925502187_1