The word superiority effect in audiovisual speech perception
DOI: 10.1016/j.specom.2010.02.005
Title: The word superiority effect in audiovisual speech perception
Journal Title: Speech Communication
Volume: 52
Issue: 6
Publication Date: June 2010
Start Page: 525
End Page: 532
Published online: online 19 February 2010
ISSN: 0167-6393
Author: Mathilde Forta, Elsa Spinelliab, Christophe Savariauxc, Sonia Kandelab
Affiliations:

  • a Université Pierre Mendès France, Laboratoire de Psychologie et NeuroCognition (CNRS UMR 5105), BP 47, 38040 Grenoble Cedex 9, France

  • b Institut Universitaire de France, 103, bd Saint-Michel, 75005 Paris, France

  • c Université Stendhal, GIPSA-lab, Dpt. Parole et Cognition (CNRS UMR 5216), BP 25, 38040 Grenoble Cedex 9, France
  • Abstract: he facial gestures of a speaker enhances phonemic identification in noise. The goal of this study was to assess whether the visual information regarding consonant articulation activates lexical representations. We conducted a phoneme monitoring task with word and pseudo-words in audio only (A) and audiovisual (AV) contexts with two levels of white noise masking the acoustic signal. The results confirmed that visual information enhances consonant detection in noisy conditions and also revealed that it accelerates the phoneme detection process. The consonants were detected faster in AV than in A only condition. Furthermore, when the acoustic signal was deteriorated, the consonant phonemes were better recognized when they were embedded in words rather than in pseudo-words in the AV condition. This provides evidence indicating that visual information on phoneme identity can contribute to lexical activation processes during word recognition.
    Accepted: 9 February 2010
    Received: 30 March 2009
    Revised: 29 December 2009
    Tel: +33 4 76 82 56 30
    Fax: +33 4 76 82 78 34
    Email: mathilde.fort@upmf elsa.spinelli@upmf christophe.savariaux@gipsa sonia.kandel@upmf

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