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| Research article summary (published 2 Mar 2002): |
Visual speech perception without primary auditory cortex activation.
Full Abstract
Speech perception is conventionally thought to be an auditory function, but humans often use their eyes to perceive speech. We investigated whether visual speech perception depends on processing by the primary auditory cortex in hearing adults. In a functional magnetic resonance imaging experiment, a pulse-tone was presented contrasted with gradient noise. During the same session, a silent video of a talker saying isolated words was presented contrasted with a still face. Visual speech activated the superior temporal gyrus anterior, posterior, and lateral to the primary auditory cortex, but not the region of the primary auditory cortex. These results suggest that visual speech perception is not critically dependent on the region of primary auditory cortex.
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Author information
Author/s: Bernstein, Lynne E (LE); Auer, Edward T (ET); Moore, Jean K (JK); Ponton, Curtis W (CW); Don, Manual (M); Singh, Manbir (M);
Affiliation: Department of Communication Neuroscience, 2100 West Third Street, Los Angeles, CA 90057, USA.
Grants: AG05142 (Agency:United States NIA) ; DC02107 (Agency:United States NIDCD)
Journal and publication information
Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S.
Journal: Neuroreport (Neuroreport), published in England. (Language: eng)
Reference: 2002-Mar; vol 13 (issue 3) : pp 311-5
Dates: Created 2002/04/03; Completed 2002/05/02; Revised 2007/11/14;
PMID: 11930129, 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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