Audiovisual verbal transformations, as a way to study audiovisual interactions in speech perception
Résumé
Verbal transformations refer to perceptual changes experienced while listening to a speech form cycled in rapid and continuous repetition. In order to test whether visual information from the speaker's articulatory gestures may modify the emergence and stability of verbal auditory percepts, participants were instructed to report any perceptual changes during unimodal, congruent audiovisual and incongruent audiovisual presentations of distinct repeated syllables. Our results demonstrate the capacity of visual information to control the multistable perception of speech in its phonetic content and temporal course.