Cumulative multisensory discrepancies shape the ventriloquism aftereffect but not the ventriloquism bias.

ABSTRACT: Multisensory integration and recalibration are two processes by which perception deals with discrepant signals. Both are often studied in the spatial ventriloquism paradigm. There, integration is probed by the presentation of discrepant audio-visual stimuli, while recalibration manifests as an aftereffect in subsequent judgements of unisensory sounds. Both biases are typically quantified against the degree of audio-visual discrepancy, reflecting the possibility that both may arise from common underlying multisensory principles. We tested a specific prediction of this: that both processes should also scale similarly with the history of multisensory discrepancies, i.e. the sequence of discrepancies in several preceding audio-visual trials. Analyzing data from ten experiments with randomly va

SUBMITTER: Kayser C 

PROVIDER: S-EPMC10443876 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature