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  Hierarchical functional connectivity between the core language system and the working memory system

Makuuchi, M., & Friederici, A. D. (2013). Hierarchical functional connectivity between the core language system and the working memory system. Cortex, 49(9), 2416-2423. doi:10.1016/j.cortex.2013.01.007.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000E-753C-A Version Permalink: http://hdl.handle.net/21.11116/0000-0003-ACC0-2
Genre: Journal Article

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 Creators:
Makuuchi, Michiru1, Author              
Friederici, Angela D.1, Author              
Affiliations:
1Department Neuropsychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634551              

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Free keywords: Complex syntax; Working memory; Dynamic causal modeling; Language network; fMRI
 Abstract: Language processing inevitably involves working memory (WM) operations, especially for sentences with complex syntactic structures. Evidence has been provided for a neuroanatomical segregation between core syntactic processes and WM, but the dynamic relation between these systems still has to be explored. In the present functional magnetic resonance imaging (fMRI) study, we investigated the network dynamics of regions involved in WM operations which support sentence processing during reading, comparing a set of dynamic causal models (DCM) with different assumptions about the underlying connectional architecture. The DCMs incorporated the core language processing regions (pars opercularis and middle temporal gyrus), WM related regions (inferior frontal sulcus and intraparietal sulcus), and visual word form area (fusiform gyrus). The results indicate a processing hierarchy from the visual to WM to core language systems, and moreover, a clear increase of connectivity between WM regions and language regions as the processing load increases for syntactically complex sentences.

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Language(s): eng - English
 Dates: 2012-11-122012-07-302013-01-132013-01-282013-10
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1016/j.cortex.2013.01.007
PMID: 23480847
Other: Epub 2013
 Degree: -

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Title: Cortex
  Other : Cortex
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Elsevier
Pages: - Volume / Issue: 49 (9) Sequence Number: - Start / End Page: 2416 - 2423 Identifier: ISSN: 0010-9452
CoNE: https://pure.mpg.de/cone/journals/resource/954925393344