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ERIC Number: EJ916040
Record Type: Journal
Publication Date: 2011-Feb
Pages: 10
Abstractor: As Provided
Reference Count: 0
ISSN: ISSN-0028-3932
Conflict and Cognitive Control during Sentence Comprehension: Recruitment of a Frontal Network during the Processing of Spanish Object-First Sentences
del Rio, David; Maestu, Fernando; Lopez-Higes, Ramon; Moratti, Stephan; Gutierrez, Ricardo; Maestu, Ceferino; del-Pozo, Francisco
Neuropsychologia, v49 n3 p382-391 Feb 2011
During sentence processing there is a preference to treat the first noun phrase found as the subject and agent, unless marked the other way. This preference would lead to a conflict in thematic role assignment when the syntactic structure conforms to a non-canonical object-before-subject pattern. Left perisylvian and fronto-parietal brain networks have been found to be engaged by increased computational demands during sentence comprehension, while event-treated brain potentials have been used to study the on-line manifestation of these demands. However, evidence regarding the spatiotemporal organization of brain networks in this domain is scarce. In the current study we used Magnetoencephalography to track spatio-temporally brain activity while Spanish speakers were reading subject- and object-first cleft sentences. Both kinds of sentences remained ambiguous between a subject-first or an object-first interpretation up to the appearance of the second argument. Results show the time-modulation of a frontal network at the disambiguation point of object-first sentences. Moreover, the time windows where these effects took place have been previously related to thematic role integration (300-500 ms) and to sentence reanalysis and resolution of conflicts during processing (beyond 500 ms post-stimulus). These results point to frontal cognitive control as a putative key mechanism which may operate when a revision of the sentence structure and meaning is necessary. (Contains 2 tables and 4 figures.)
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A