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| Research article summary (published 30 Dec 2002): |
Common and segregated neuronal networks for different languages revealed using functional magnetic resonance adaptation.
Full Abstract
The effect of word repetition within and across languages was studied in English-Chinese bilinguals who read rapidly presented word pairs in a block design and an event-related fMRI study. Relatively less increase in MR signal was observed when the second word in a pair was identical in meaning to the first. This occurred in the English-only and mixed-languages conditions. Repetition-induced reductions in BOLD signal change were found in the left lateral prefrontal and lateral temporal regions in both types of conditions in the block experiment, suggesting that processing in these regions is sensitive to semantic features present in words and characters, and that part of the semantic neuronal networks serving English and Chinese is shared. In addition, these regions showed greater absolute signal change in the mixed-languages trials relative to the English-only trials. These findings were mostly replicated in an event-related experiment. Together, the experiments suggest that while the networks for Chinese and English word processing have shared components, there are also components that may be language specific.
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Author information
Author/s: Chee, Michael W L (MW); Soon, Chun Siong (CS); Lee, Hwee Ling (HL);
Affiliation: SingHealth Research Facilities, Singapore General Hospital. mchee(-atsign-)pacific.net.sg
Journal and publication information
Publication Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't
Journal: Journal of cognitive neuroscience (J Cogn Neurosci), published in United States. (Language: eng)
Reference: 2003-Jan; vol 15 (issue 1) : pp 85-97
Dates: Created 2003/02/19; Completed 2003/03/26; Revised 2006/11/15;
PMID: 12590845, status: MEDLINE (last retrieval date: 11/6/2008)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
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