Cross-modal congruency modulates evidence accumulation, not decision thresholds.

ABSTRACT: Audiovisual cross-modal correspondences (CMCs) refer to the brain's inherent ability to subconsciously connect auditory and visual information. These correspondences reveal essential aspects of multisensory perception and influence behavioral performance, enhancing reaction times and accuracy. However, the impact of different types of CMCs-arising from statistical co-occurrences or shaped by semantic associations-on information processing and decision-making remains underexplored. This study utilizes the Implicit Association Test, where unisensory stimuli are sequentially presented and linked via CMCs within an experimental block by the specific response instructions (either congruent or incongruent). Behavioral data are integrated with EEG measurements through neurally informed drift-diff

SUBMITTER: Brozova N 

PROVIDER: S-EPMC11882578 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature