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Research article summary:
Modality independence of word comprehension.
Abstract Extract:
Functional magnetic resonance imaging (fMRI) was used to examine the functional anatomy of word comprehension in the auditory and visual modalities of presentation. We asked our subjects to determine if word pairs were semantically associated (e.g., ... (Full abstract text below) Published 2002Aug
in Journal: Hum Brain Mapp
(Language : eng)
Full Pubmed Extract
This information was retrieved, real-time, on your behalf from the public area of the Pubmed website:
1. Hum Brain Mapp.
2002 Aug;16(4):251-61
Modality independence of word comprehension.
Booth JR, Burman DD, Meyer JR, Gitelman DR, Parrish TB, Mesulam MM
Department of Communication Sciences and Disorders, Northwestern University, Evanston, Illinois 60208-3560, USA. j-booth@nwu.edu
Functional magnetic resonance imaging (fMRI) was used to examine the functional anatomy of word comprehension in the auditory and visual modalities of presentation. We asked our subjects to determine if word pairs were semantically associated (e.g., table, chair) and compared this to a reference task where they were asked to judge whether word pairs rhymed (e.g., bank, tank). This comparison showed task-specific and modality-independent activation for semantic processing in the heteromodal cortices of the left inferior frontal gyrus (BA 46, 47) and left middle temporal gyrus (BA 21). There were also modality-specific activations in the fusiform gyrus (BA 37) for written words and in the superior temporal gyrus (BA 22) for spoken words. Our findings are consistent with the hypothesis that word form recognition (lexical encoding) occurs in unimodal cortices and that heteromodal brain regions in the anterior as well as posterior components of the language network subserve word comprehension (semantic decoding).
PMID : 12112766 [PubMed - Indexed for MEDLINE]
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Full Author Information
| First Name | LastName | Initials |
| James R | Booth | JR |
| Douglas D | Burman | DD |
| Joel R | Meyer | JR |
| Darren R | Gitelman | DR |
| Todd B | Parrish | TB |
| M Marsel | Mesulam | MM |
Affiliation: Department of Communication Sciences and Disorders, Northwestern University, Evanston, Illinois 60208-3560, USA. j-booth@nwu.edu
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Category links from this article:- Adult
- Brain - physiology
- Female
- Humans
- Magnetic Resonance Imaging
- Male
- Reading
- Semantics
- Speech Perception - physiology
- Visual Perception - physiology
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