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Article Dans Une Revue Language, Cognition and Neuroscience Année : 2018

Localising Memory Retrieval and Syntactic Composition: An fMRI Study of Naturalistic Language Comprehension

Résumé

This study examines memory retrieval and syntactic composition using fMRI while participants listen to a book, The Little Prince. These two processes are quantified drawing on methods from computational linguistics. Memory retrieval is quantified via multi-word expressions that are likely to be stored as a unit, rather than built-up compositionally. Syntactic composition is quantified via bottom-up parsing that tracks tree-building work needed in composed syntactic phrases. Regression analyses localise these to spatially-distinct brain regions. Composition mainly correlates with bilateral activity in anterior temporal lobe and inferior frontal gyrus. Retrieval of stored expressions drives right-lateralised activation in the precuneus. Less cohesive expressions activate well-known nodes of the language network implicated in composition. These results help to detail the neuroanatomical bases of two widely-assumed cognitive operations in language processing.
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Dates et versions

hal-01930201 , version 1 (21-11-2018)

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Shohini Bhattasali, Murielle Fabre, Wen-Ming Luh, Hazem Al Saied, Mathieu Constant, et al.. Localising Memory Retrieval and Syntactic Composition: An fMRI Study of Naturalistic Language Comprehension. Language, Cognition and Neuroscience, inPress, 34 (4), pp.1-20. ⟨10.1080/23273798.2018.1518533⟩. ⟨hal-01930201⟩
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