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  Alignment of alpha-band desynchronization with syntactic structure predicts successful sentence comprehension

Vassileiou, B., Meyer, L., Beese, C., & Friederici, A. D. (2018). Alignment of alpha-band desynchronization with syntactic structure predicts successful sentence comprehension. NeuroImage, 175, 286-296. doi:10.1016/j.neuroimage.2018.04.008.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-292C-1 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-9AE4-E
Genre: Journal Article

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 Creators:
Vassileiou, Benedict1, Author              
Meyer, Lars1, Author              
Beese, Caroline1, 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: Electroencephalography; Language; Neural oscillations; Subsequent memory paradigm; Computational modeling
 Abstract: Sentence comprehension requires the encoding of phrases and their relationships into working memory. To date, despite the importance of neural oscillations in language comprehension, the neural-oscillatory dynamics of sentence encoding are only sparsely understood. Although oscillations in a wide range of frequency bands have been reported both for the encoding of unstructured word lists and for working-memory intensive sentences, it is unclear to what extent these frequency bands subserve processes specific to the working-memory component of sentence comprehension or to general verbal working memory. In our auditory electroencephalography study, we isolated the working-memory component of sentence comprehension by adapting a subsequent memory paradigm to sentence comprehension and assessing oscillatory power changes during successful sentence encoding. Time–frequency analyses and source reconstruction revealed alpha-power desynchronization in left-hemispheric language-relevant regions during successful sentence encoding. We further showed that sentence encoding was more successful when source-level alpha-band desynchronization aligned with computational measures of syntactic—compared to lexical-semantic—difficulty. Our results are a preliminary indication of a domain-general mechanism of cortical disinhibition via alpha-band desynchronization superimposed onto the language-relevant cortex, which is beneficial for encoding sentences into working memory.

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Language(s): eng - English
 Dates: 2018-04-032017-09-192018-04-052018-04-062018-07-15
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1016/j.neuroimage.2018.04.008
PMID: 29627592
Other: Epub 2018
 Degree: -

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Funding program : -
Funding organization : Max Planck Society

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Title: NeuroImage
Source Genre: Journal
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Publ. Info: Orlando, FL : Academic Press
Pages: - Volume / Issue: 175 Sequence Number: - Start / End Page: 286 - 296 Identifier: ISSN: 1053-8119
CoNE: https://pure.mpg.de/cone/journals/resource/954922650166