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  Left inferior frontal gyrus mediates morphosyntax: ERP evidence from verb processing in left-hemisphere damaged patients

Regel, S., Kotz, S. A., Henseler, I., & Friederici, A. D. (2017). Left inferior frontal gyrus mediates morphosyntax: ERP evidence from verb processing in left-hemisphere damaged patients. Cortex, 86, 156-171. doi:10.1016/j.cortex.2016.11.007.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-3792-5 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-BBED-0
Genre: Journal Article

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 Creators:
Regel, Stefanie1, Author              
Kotz, Sonja A.1, 2, Author              
Henseler, Ilona3, Author              
Friederici, Angela D.1, Author              
Affiliations:
1Department Neuropsychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634551              
2Department of Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University, the Netherlands, ou_persistent22              
3Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634549              

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Free keywords: Event-related potentials (ERPs); Left inferior frontal gyrus (LIFG); Broca's area; (Morpho-)syntax; Language processing
 Abstract: Neurocognitive models of language comprehension have proposed different mechanisms with different neural substrates mediating human language processing. Whether the left inferior frontal gyrus (LIFG) is engaged in morpho-syntactic information processing is currently still controversially debated. The present study addresses this issue by examining the processing of irregular verb inflection in real words (e.g., swim > swum > swam) and pseudowords (e.g., frim > frum > fram) by using event-related brain potentials (ERPs) in neurological patients with lesions in the LIFG involving Broca's area as well as healthy controls. Different ERP patterns in response to the grammatical violations were observed in both groups. Controls showed a biphasic negativity-P600 pattern in response to incorrect verb inflections whereas patients with LIFG lesions displayed a N400. For incorrect pseudoword inflections, a late positivity was found in controls, while no ERP effects were obtained in patients. These findings of different ERP patterns in the two groups strongly indicate an involvement of LIFG in morphosyntactic processing, thereby suggesting brain regions' specialization for different language functions.

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Language(s): eng - English
 Dates: 2016-01-042015-04-282016-11-082016-11-182017-01-03
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1016/j.cortex.2016.11.007
PMID: 28011396
Other: Epub 2016
 Degree: -

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Project name : -
Grant ID : FR 519/19-1
Funding program : -
Funding organization : German Science Foundation (DFG)

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Title: Cortex
  Other : Cortex
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 86 Sequence Number: - Start / End Page: 156 - 171 Identifier: ISSN: 0010-9452
CoNE: /journals/resource/954925393344