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  Anterior and posterior left inferior frontal gyrus contribute to the implementation of grammatical determiners during language production

Ishkhanyan, B., Lange, V., Boye, K., Mogensen, J., Karabanov, A., Hartwigsen, G., et al. (2020). Anterior and posterior left inferior frontal gyrus contribute to the implementation of grammatical determiners during language production. Frontiers in Psychology, 11: 685. doi:10.3389/fpsyg.2020.00685.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0005-F1E6-7 Version Permalink: http://hdl.handle.net/21.11116/0000-0006-7824-B
Genre: Journal Article

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 Creators:
Ishkhanyan, Byurakn1, 2, 3, Author
Lange, Violaine1, 2, Author
Boye, Kasper1, Author
Mogensen, Jesper4, Author
Karabanov, Anke2, Author
Hartwigsen, Gesa5, Author              
Siebner, Hartwig2, 6, 7, Author
Affiliations:
1Department of Nordic Studies and Linguistics, Faculty of Humanities, University of Copenhagen, Denmark, ou_persistent22              
2Danish Research Centre for Magnetic Resonance, Copenhagen University Hospital Hvidovre, Denmark, ou_persistent22              
3Department of Linguistics, Cognitive Science and Semiotics, School of Communication and Culture, Aarhus University, Denmark, ou_persistent22              
4Unit for Cognitive Neuroscience, Department of Psychology, University of Copenhagen, Denmark, ou_persistent22              
5Lise Meitner Research Group Cognition and Plasticity, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_3025665              
6Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark, ou_persistent22              
7Department of Neurology, Bispebjerg Hospital, Copenhagen, Denmark, ou_persistent22              

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Free keywords: Broca Area, Language production, grammar, Lexicon, inferior frontal gyrus
 Abstract: The left inferior frontal gyrus (IFG) is a key region for language comprehension and production. Previous studies point to a preferential involvement of left anterior IFG (aIFG) in lexical and semantic processes, while the posterior IFG (pIFG) has been implicated in supporting syntactic and phonological processes. Here we used focal neuronavigated transcranial magnetic stimulation (TMS) to probe the functional involvement of left IFG in lexical and grammatical processing at the sentence level. We applied 10 Hz TMS effective or sham bursts to left aIFG and pIFG, while healthy volunteers performed an adjective-noun production task contrasting grammatical and lexical determiners. For each trial, we measured the time from the stimulus onset to the moment of articulation (response time) and the time from articulation onset to the end of articulation (duration). Focal TMS of IFG generally delayed response times. The TMS-induced delay in response times was relatively stronger for the grammatical condition compared to the lexical condition, when TMS targeted aIFG. Articulation of the determiner was generally shorter in trials presenting grammatical determiners relative to lexical determiners. The shorter articulation time for grammar determiners was facilitated by effective TMS to pIFG. Together, the effects of TMS on task performance provide novel evidence for a joint involvement of anterior and posterior parts of left IFG in implementing grammatical determiners during language production, suggesting an involvement of aIFG in the initiation and pIFG in the production of grammatically appropriate verbal responses at the sentence level.

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Language(s): eng - English
 Dates: 2019-09-262020-03-202020-04-27
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.3389/fpsyg.2020.00685
Other: eCollection 2020
PMID: 32395113
PMC: PMC7197372
 Degree: -

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Title: Frontiers in Psychology
  Abbreviation : Front Psychol
Source Genre: Journal
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Pages: - Volume / Issue: 11 Sequence Number: 685 Start / End Page: - Identifier: ISSN: 1664-1078
CoNE: https://pure.mpg.de/cone/journals/resource/1664-1078