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  Functional connectivity-based parcellation of the human sensorimotor cortex

Long, X., Goltz, D., Margulies, D. S., Nierhaus, T., & Villringer, A. (2014). Functional connectivity-based parcellation of the human sensorimotor cortex. European Journal of Neuroscience, 39(8), 1332-1342. doi:10.1111/ejn.12473.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-001A-2BB0-A Version Permalink: http://hdl.handle.net/21.11116/0000-0003-7E9A-3
Genre: Journal Article

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 Creators:
Long, Xiangyu1, 2, Author              
Goltz, Dominique1, Author              
Margulies, Daniel S.3, 4, Author              
Nierhaus, Till1, 4, Author              
Villringer, Arno1, 4, Author              
Affiliations:
1Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634549              
2Institute of Psychology, University of Leipzig, Germany, ou_persistent22              
3Max Planck Research Group Neuroanatomy and Connectivity, MPI for Human Cognitive and Brain Sciences, Max Planck Society, Leipzig, DE, ou_1356546              
4Berlin School of Mind and Brain, Humboldt University Berlin, Germany, ou_persistent22              

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Free keywords: Post-task effect; Resting-state functional magnetic resonance imaging; Sensorimotor cortex; Somatotopic; Task-based
 Abstract: Task-based functional magnetic resonance imaging (fMRI) has been successfully employed to obtain somatotopic maps of the human sensorimotor cortex. Here, we showed through direct comparison that a similar functional map can be obtained, independently of a task, by performing a connectivity-based parcellation of the sensorimotor cortex based on resting-state fMRI. Cortex corresponding to two adjacent Brodmann areas (BA 3 and BA 4) was selected as the sensorimotor area. Parcellation was obtained along a medial–lateral axis, which was confirmed to be somatotopic (corresponding roughly to an upper, middle and lower limb, respectively) by comparing it with maps obtained using motoric task-based fMRI in the same participants. Interestingly, the resting-state parcellation map demonstrated higher correspondence to the task-based divisions after individuals performed the motor task. Using the resting-state fMRI data, we also observed higher functional correlations between the centrally located hand region and the other two regions, than between the foot and tongue. The functional relevance of these somatosensory parcellation results indicates the feasibility of a wide range of potential applications to brain mapping.

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Language(s): eng - English
 Dates: 2013-11-262013-12-052014-01-132014-04
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1111/ejn.12473
PMID: 24417550
Other: Epub 2014
 Degree: -

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Title: European Journal of Neuroscience
  Other : Eur. J. Neurosci
Source Genre: Journal
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Publ. Info: Oxford, UK : Published on behalf of the European Neuroscience Association by Oxford University Press
Pages: - Volume / Issue: 39 (8) Sequence Number: - Start / End Page: 1332 - 1342 Identifier: ISSN: 0953-816X
CoNE: /journals/resource/954925575988