Semantic and spatial congruency mould audiovisual integration depending on perceptual awareness.

ABSTRACT: Information integration is considered a hallmark of human consciousness. Recent research has challenged this tenet by showing multisensory interactions in the absence of awareness. This psychophysics study assessed the impact of spatial and semantic correspondences on audiovisual binding in the presence and absence of visual awareness by combining forward-backward masking with spatial ventriloquism. Observers were presented with object pictures and synchronous sounds that were spatially and/or semantically congruent or incongruent. On each trial observers located the sound, identified the picture and rated the picture's visibility. We observed a robust ventriloquist effect for subjectively visible and invisible pictures indicating that pictures that evade our perceptual awareness influence

SUBMITTER: Delong P 

PROVIDER: S-EPMC8149651 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature