Activation of Auditory Cortex During Silent Lipreading-Reference-Cited by-同舟云学术

Activation of Auditory Cortex During Silent Lipreading

Published:1997-04-25 Issue:5312 Volume:276 Page:593-596
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Calvert Gemma A.¹²³⁴,Bullmore Edward T.¹²³⁴,Brammer Michael J.¹²³⁴,Campbell Ruth¹²³⁴,Williams Steven C. R.¹²³⁴,McGuire Philip K.¹²³⁴,Woodruff Peter W. R.¹²³⁴,Iversen Susan D.¹²³⁴,David Anthony S.¹²³⁴

Affiliation:

1. G. A. Calvert and S. D. Iversen, Departments of Psychiatry and Experimental Psychology, University of Oxford, Warneford Hospital, Oxford OX3 7JX, UK.

2. E. T. Bullmore, M. J. Brammer, S. C. R. Williams, P. K. McGuire, P. W. R. Woodruff, Institute of Psychiatry, De Crespigny Park, Denmark Hill, London SE5, 8AF UK.

3. R. Campbell, Department of Human Communication Science, University College London, Chandler House, 2 Wakefield Street, London WC1 1PG, UK.

4. A. S. David, Institute of Psychiatry, De Crespigny Park, Denmark Hill, London SE5, 8AF, and King’s College School of Medicine and Dentistry, 103 Denmark Hill, London SE5 8AZ, UK.

Abstract

Watching a speaker’s lips during face-to-face conversation (lipreading) markedly improves speech perception, particularly in noisy conditions. With functional magnetic resonance imaging it was found that these linguistic visual cues are sufficient to activate auditory cortex in normal hearing individuals in the absence of auditory speech sounds. Two further experiments suggest that these auditory cortical areas are not engaged when an individual is viewing nonlinguistic facial movements but appear to be activated by silent meaningless speechlike movements (pseudospeech). This supports psycholinguistic evidence that seen speech influences the perception of heard speech at a prelexical stage.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference38 articles.

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