Dissociable patterns of brain activity during comprehension of rapid and syntactically complex speech: Evidence from fMRI  

Oleh:

Peelle, Jonathan E. ; McMillan, Corey ; Moore, Peachie ; Grossman, Murray ; Wingfield, Arthur

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Brain and Language (Full Text) vol. 91 no. 3 (2004), page 315-325.
Topik: Sentence comprehension; Syntax; Speech rate; Language; Time-compressed speech; Brain imaging; Processing speed; fMRI
Fulltext: 91_03_Peelle.pdf (313.16KB)

Isi artikel

Sentence comprehension is a complex task that involves both language-specific processing components and general cognitive resources. Comprehension can be made more difficult by increasing the syntactic complexity or the presentation rate of a sentence, but it is unclear whether the same neural mechanism underlies both of these effects. In the current study, we used event-related functional magnetic resonance imaging (fMRI) to monitor neural activity while participants heard sentences containing a subjectrelative or object-relative center-embedded clause presented at three different speech rates. Syntactically complex object-relative sentences activated left inferior frontal cortex across presentation rates, whereas sentences presented at a rapid rate recruited frontal brain regions such as anterior cingulate and premotor cortex, regardless of syntactic complexity. These results suggest that dissociable components of a large-scale neural network support the processing of syntactic complexity and speech presented at a rapid rate during auditory sentence processing.

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