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  Generating predictions: Lesion evidence on the role of left inferior frontal cortex in rapid syntactic analysis

Jakuszeit, M., Kotz, S. A., & Hasting, A. S. (2013). Generating predictions: Lesion evidence on the role of left inferior frontal cortex in rapid syntactic analysis. Cortex, 49(10), 2861-2874. doi:10.1016/j.cortex.2013.05.014.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0014-3D35-C Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002B-C126-0
Genre: Journal Article

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 Creators:
Jakuszeit, Maria1, Author              
Kotz, Sonja A.1, 2, Author              
Hasting, Anna S.1, 3, Author              
Affiliations:
1Department Neuropsychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634551              
2School of Psychological Sciences, University of Manchester, United Kingdom, ou_persistent22              
3Clinic for Cognitive Neurology, University of Leipzig, Germany, ou_persistent22              

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Free keywords: ERP; Early syntactic negativity; Sensory prediction; Phrase structure; Morphosyntax
 Abstract: A well-documented phenomenon in event-related electroencephalography (EEG) and magnetoencephalography (MEG) studies on language processing is that syntactic violations of different types elicit negativities as early as 100 msec after the violation point. Recently, these responses have been associated with activations in or very close to sensory cortices, suggesting the involvement of basic sensory mechanisms in the detection of syntactic violations. The present study investigated whether intact auditory cortices and adjacent temporal regions are sufficient to generate early syntactic negativities in the auditory event-related potential (ERP). We tested ten clinically non-aphasic patients with left inferior frontal lesions, but intact temporal cortices in a passive auditory ERP paradigm that had reliably elicited early negativities in response to violations of subject-verb agreement and word category in the past. Subject-verb agreement violations failed to elicit early grammaticality effects in these patients, whereas a group of ten age-matched controls showed a reliable early negativity. This finding supports the idea that sensory aspects of syntactic analysis as reflected in early syntactic negativities critically depend on top-down predictions generated by the left inferior frontal cortex. In contrast, word category violations elicited a small, marginally significant early negativity both in controls and patients, suggesting an additional involvement of temporal regions in early phrase structure processing. In an additional auditory oddball experiment patients showed a regular P300, but no N2b component in response to deviant tones, indicating that their deficit in generating sensory predictions extends beyond the language domain.

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Language(s): eng - English
 Dates: 2013-07-192013-12
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1016/j.cortex.2013.05.014
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Title: Cortex
  Other : Cortex
Source Genre: Journal
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Publ. Info: -
Pages: - Volume / Issue: 49 (10) Sequence Number: - Start / End Page: 2861 - 2874 Identifier: ISSN: 0010-9452
CoNE: /journals/resource/954925393344