| fMRI adaptation dissociates syntactic complexity dimensions. | |
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MedLine Citation:
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PMID: 20338244 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The current fMRI adaptation study sought to elucidate the dimensions of syntactic complexity and their underlying neural substrates. For the first time with fMRI, we investigated repetition suppression (i.e., fMRI adaptation) for two orthogonal dimensions of sentence complexity: embedding position (right-branching vs. center-embedding) and movement type (subject vs. object). Two novel results were obtained: First, we found syntactic adaptation in Broca's area and second, this adaptation was structured. Anterior Broca's area (BA 45) selectively adapted to movement type, while posterior Broca's area (BA 44) demonstrated adaptation to both movement type and embedding position (as did left posterior superior temporal gyrus and right inferior precentral sulcus). The functional distinction within Broca's area is critical not only to an understanding of the functional neuroanatomy of language, but also to theoretical accounts of syntactic complexity, demonstrating its multi-dimensional nature. These results implicate that during syntactic comprehension, a large network of areas is engaged, but that only anterior Broca's area is selective to syntactic movement. |
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Authors:
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Andrea Santi; Yosef Grodzinsky |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural Date: 2010-03-23 |
Journal Detail:
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Title: NeuroImage Volume: 51 ISSN: 1095-9572 ISO Abbreviation: Neuroimage Publication Date: 2010 Jul |
Date Detail:
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Created Date: 2010-05-17 Completed Date: 2010-08-03 Revised Date: 2011-08-01 |
Medline Journal Info:
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Nlm Unique ID: 9215515 Medline TA: Neuroimage Country: United States |
Other Details:
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Languages: eng Pagination: 1285-93 Citation Subset: IM |
Copyright Information:
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Copyright 2010 Elsevier Inc. All rights reserved. |
Affiliation:
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Department of Linguistics, McGill University, 1085 Avenue du Docteur Penfield, Montréal, Québec, Canada H3A 1A7. andrea.santi@mail.mcgill.ca |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Acoustic Stimulation Adaptation, Physiological / physiology* Adult Behavior / physiology Cerebral Cortex / anatomy & histology, physiology Female Frontal Lobe / anatomy & histology, physiology Humans Image Processing, Computer-Assisted Language Magnetic Resonance Imaging / methods* Male Middle Aged Movement Oxygen / blood Photic Stimulation Psycholinguistics / methods* Reading Young Adult |
| Grant Support | |
ID/Acronym/Agency:
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DC000494/DC/NIDCD NIH HHS; T32 DC007361-05/DC/NIDCD NIH HHS |
| Chemical | |
Reg. No./Substance:
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7782-44-7/Oxygen |
| Comments/Corrections | |
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