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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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 Urheber:
Ishkhanyan, Byurakn1, 2, 3, Autor
Lange, Violaine1, 2, Autor
Boye, Kasper1, Autor
Mogensen, Jesper4, Autor
Karabanov, Anke2, Autor
Hartwigsen, Gesa5, Autor           
Siebner, Hartwig2, 6, 7, Autor
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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Schlagwörter: Broca Area, Language production, grammar, Lexicon, inferior frontal gyrus
 Zusammenfassung: 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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Sprache(n): eng - English
 Datum: 2019-09-262020-03-202020-04-27
 Publikationsstatus: Online veröffentlicht
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: DOI: 10.3389/fpsyg.2020.00685
Anderer: eCollection 2020
PMID: 32395113
PMC: PMC7197372
 Art des Abschluß: -

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Projektname : Interdisciplinary Centre of Excellence
Grant ID : 04490
Förderprogramm : -
Förderorganisation : University of Copenhagen, Denmark
Projektname : -
Grant ID : R186-2015-2138
Förderprogramm : -
Förderorganisation : Lundbeck Foundation
Projektname : -
Grant ID : HA 6314/1-1; HA 6314/3-1; HA 6314/4-1
Förderprogramm : -
Förderorganisation : German Research Foundation (DFG)
Projektname : -
Grant ID : DFF-7013-00074
Förderprogramm : -
Förderorganisation : Danish Council for Independent Research (FKK)

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Titel: Frontiers in Psychology
  Kurztitel : Front Psychol
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 11 Artikelnummer: 685 Start- / Endseite: - Identifikator: ISSN: 1664-1078
CoNE: https://pure.mpg.de/cone/journals/resource/1664-1078