Causal inference regulates audiovisual spatial recalibration via its influence on audiovisual perception
Fig 5
Experimental procedure and conditions during the recalibration experiment.
(A) Timeline for unimodal localization tasks (pre- and post-recalibration phase). In each trial, either a visual or an auditory stimulus was presented; participants indicated its location using a visual cursor displayed on the screen. Feedback was not provided. (B) Timeline for the bimodal localization task (recalibration phase). In each trial, participants were presented with a spatially discrepant audiovisual stimulus pair; they were asked to localize one of the modalities, cued after stimulus presentation (V: localize the visual component, A: localize the auditory component). Feedback was not provided. (C) Stimulus locations in physical and perceptual space. Top panel: the physical locations of the four perceptually aligned audiovisual stimulus pairs identified at the beginning of the study for participant S4, stimuli were always presented at one of these locations; bottom row: pairs with a constant perceptual spatial discrepancy were presented during the recalibration phase, solid lines: location pairs presented in the visual-left-of-auditory condition; dashed lines: location pairs presented in the visual-right-of-auditory condition.