A neuromagnetic study of the integration of audiovisual speech in the brain

M Sams*, S Levanen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Abstract

Background. Speech perception is supported by seeing the articulatory movements of the talker. Visual information of articulation can also change what would have been perceived on the basis of acoustical signal only.

Methods. Eight experienced lip readers were studied. Stimuli were an acoustical natural syllable /pa/, and a moving female face articulating either /pa/ or /ka/. Stimuli were presented in different combinations and at different probabilities.

Results. Audiovisual stimuli elicited a long-latency "integration response", which was generated at or close to the auditory cortex.

Conclusions. We suggest that extensively processed visual information affects auditory processing in the anatomical site which is specialized in detecting complex, speech specific features from auditory stimulus.

Original languageEnglish
Title of host publicationBRAIN TOPOGRAPHY TODAY
EditorsY Koga, K Nagata, K Hirata
PublisherElsevier Science B.V.
Pages47-53
Number of pages7
ISBN (Print)0-444-82778-1
Publication statusPublished - 1997
MoE publication typeA4 Article in a conference publication
EventPan-Pacific Conference on Brain Topography - TOKYO BAY, Japan
Duration: 1 Apr 19974 Apr 1997
Conference number: III

Publication series

NameINTERNATIONAL CONGRESS SERIES
PublisherELSEVIER SCIENCE BV
Volume1147
ISSN (Print)0531-5131

Conference

ConferencePan-Pacific Conference on Brain Topography
Abbreviated titleBTOPPS III
CountryJapan
CityTOKYO BAY
Period01/04/199704/04/1997

Keywords

  • event-related potentials (ERP)
  • magnetoencephalography (MEG)

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