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| Research article summary (published 29 Jun 2003): |
Going beyond the information given: a neural system supporting semantic interpretation.
Full Abstract
Relating the meaning of a word to the context in which it is encountered is central to comprehension. We investigated the neural basis of this process. Subjects made decisions based on a semantic property of single nouns. The lack of sentence context created ambiguity, as nouns may have several, unrelated semantic identities. Contrasted with unambiguous decisions about each noun's sound structure, the semantic task resulted in activity in the left superior frontal gyrus (SFG), activity that was dependent on choice reaction time. This identified the left SFG as an executive component of a distributed cognitive system that relates a word's meaning to its semantic context to facilitate comprehension.
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Author information
Author/s: Scott, Sophie K (SK); Leff, Alex P (AP); Wise, Richard J S (RJ);
Affiliation: Department of Psychology, University College London, Gower Street, London WC1E 6BT, UK. sophie.scott@ucl.ac.uk
Journal and publication information
Publication Type: Clinical Trial; Journal Article
Journal: NeuroImage (Neuroimage), published in United States. (Language: eng)
Reference: 2003-Jul; vol 19 (issue 3) : pp 870-6
Dates: Created 2003/07/25; Completed 2003/09/09; Revised 2006/11/15;
PMID: 12880815, 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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