Liage et fusion audiovisuelle en perception de la parole : on peut " débrancher " l'effet McGurk par un contexte audiovisuel incohérent
Résumé
The McGurk effect demonstrates the existence of a fusion process in audiovisual speech perception: the combination of the sound "ba" with the face of a speaker who pronounces "ga" is frequently perceived as "da". We assume that in the upstream of this phonetic fusion process, there is another early fusion process, which controls the combination of image and sound, and can block it in the case of audiovisual inconsistencies (conditional binding process), as in the case of a dubbed film. To test this early fusion hypothesis , we designed an experiment in which a consistent or inconsistent audiovisual context is placed before McGurk stimuli, and we show that the inconsistent contextual stimulus can remove the effect McGurk.
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JEP2010_Nahorna_poster_final.pdf (684.64 Ko)
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