Disentangling unisensory from fusion effects in the attentional modulation of McGurk effects: a Bayesian modeling study suggests that fusion is attention-dependent

Jean-Luc Schwartz, Kaisa Tiiippana, Tobias Andersen

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    Abstract

    The McGurk effect has been shown to be modulated by attention. However, it remains unclear whether attentional effects are due to changes in unisensory processing or in the fusion mechanism. In this paper, we used published experimental data showing that distraction of visual attention weakens the McGurk effect, to fit either the Fuzzy Logical Model of Perception (FLMP) in which the fusion mechanism is fixed, or a variant of it in which the fusion mechanism could be varied depending on attention. The latter model was associated with a larger likelihood when assessed with a Bayesian Model Selection criterion. Our findings suggest that distraction of visual attention affects fusion by decreasing the weight of the visual input.
    Original languageEnglish
    Title of host publicationProceedings of AVSP
    Publication date2010
    Publication statusPublished - 2010
    EventInternational Conference on Auditory-Visual Speech Processing - Tokyo, Japan
    Duration: 1 Jan 2010 → …

    Conference

    ConferenceInternational Conference on Auditory-Visual Speech Processing
    CityTokyo, Japan
    Period01/01/2010 → …

    Cite this