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| Research article summary (published 30 Mar 2002): |
Neuromagnetic evidence for the timing of lexical activation: an MEG component sensitive to phonotactic probability but not to neighborhood density.
Full Abstract
Evidence from electrophysiological measures such as ERPs (event-related potentials) and MEG (magnetoencephalography) suggest that the first evoked brain response component sensitive to stimulus properties affecting reaction times in word recognition tasks occurs at 300-400 ms. The present study used the stimulus manipulation of Vitevich and Luce (1999) to investigate whether the M350, an MEG response component peaking at 300-400 ms, reflects lexical or postlexical processing. Stimuli were simultaneously varied in phonotactic probability, which facilitates lexical activation, and in phonological neighborhood density, which inhibits the lexical decision process. The present results indicate that the M350 shows facilitation by phonotactic probability rather than inhibition by neighborhood density. Thus the M350 cannot be a postlexical component.Copyright 2002 Elsevier Science (USA).
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Author information
Author/s: Pylkkänen, Liina (L); Stringfellow, Andrew (A); Marantz, Alec (A);
Affiliation: Department of Linguistics and Philosophy, Massachusetts Institute of Technology, and the Mind Articulation Project, International Cooperative Research Project, Japan Sciece and Technology Corportation, Tokyo, Japan. liina(-atsign-)mit.edu
Journal and publication information
Publication Type: Journal Article; Research Support, Non-U.S. Gov't
Journal: Brain and language (Brain Lang), published in United States. (Language: eng)
Reference: -2002 Apr-Jun; vol 81 (issue 1-3) : pp 666-78
Dates: Created 2002/06/25; Completed 2002/07/25; Revised 2006/11/15;
PMID: 12081430, 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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