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  Intonation guides sentence processing in the left inferior frontal gyrus

van der Burght, C., Goucha, T., Friederici, A. D., Kreitewolf, J., & Hartwigsen, G. (2019). Intonation guides sentence processing in the left inferior frontal gyrus. Cortex, 117, 122-134. doi:10.1016/j.cortex.2019.02.011.

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van der Burght, Constantijn1, 2, Autor           
Goucha, Tomás1, Autor           
Friederici, Angela D.1, Autor           
Kreitewolf, Jens1, 3, Autor           
Hartwigsen, Gesa1, 2, Autor           
Affiliations:
1Department Neuropsychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634551              
2Lise Meitner Research Group Cognition and Plasticity, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_3025665              
3Department of Psychology, University of Lübeck, Germany, ou_persistent22              

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Schlagwörter: Prosody; Syntax; Sentence comprehension; Lateralisation; fMRI
 Zusammenfassung: Speech prosody, the variation in sentence melody and rhythm, plays a crucial role in sentence comprehension. Specifically, changes in intonational pitch along a sentence can affect our understanding of who did what to whom. To date, it remains unclear how the brain processes this particular use of intonation and which brain regions are involved. In particular, one central matter of debate concerns the lateralisation of intonation processing. To study the role of intonation in sentence comprehension, we designed a functional MRI experiment in which participants listened to spoken sentences. Critically, the interpretation of these sentences depended on either intonational or grammatical cues. Our results
showed stronger functional activity in the left inferior frontal gyrus (IFG) when the intonational cue was crucial for sentence comprehension compared to when it was not. When instead a grammatical cue was crucial for sentence comprehension, we found involvement of an overlapping region in the left IFG, as well as in a posterior temporal
region. A further analysis revealed that the lateralisation of intonation processing depends on its role in syntactic processing: activity in the IFG was lateralised to the left hemisphere when intonation was the only source of information to comprehend the sentence. In contrast, activity in the IFG was right-lateralised when intonation did not contribute to sentence comprehension. Together, these results emphasise the key role of the left IFG in sentence comprehension, showing the importance of this region when intonation
establishes sentence structure. Furthermore, our results provide evidence for the theory
that the lateralisation of prosodic processing is modulated by its linguistic role.

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Sprache(n): eng - English
 Datum: 2018-12-222018-07-162019-02-112019-02-272019-08
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1016/j.cortex.2019.02.011
PMID: 30974320
Anderer: Epub ahead of print
 Art des Abschluß: -

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Titel: Cortex
  Andere : Cortex
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 117 Artikelnummer: - Start- / Endseite: 122 - 134 Identifikator: ISSN: 0010-9452
CoNE: https://pure.mpg.de/cone/journals/resource/954925393344