The aftereffects of ventriloquism: the time course of the visual recalibration of auditory localization

Seeing and Perceiving
Ilja FrissenBeatrice de Gelder

Abstract

Exposure to synchronous but spatially discordant auditory and visual inputs produces adaptive recalibration of the respective localization processes, which manifest themselves in measurable aftereffects. Here we report two experiments that examined the time course of visual recalibration of apparent sound location in order to establish the build-up and dissipation of recalibration. In Experiment 1 participants performed a sound localization task before and during exposure to an auditory-visual discrepancy. In Experiment 2, participants performed a sound localization task before and after 60, 180 or 300 exposures to the discrepancy and aftereffects were measured across a series of post-adaptation sound localization trials. The results show that recalibration is very fast. Substantial aftereffects are obtained after only 18-24 exposures and asymptote appears to be reached between 60 and 180 exposures. The rate of adaptation was independent of the size of the discrepancy. The retention of the aftereffect was strong, as we found no dissipation, not even after as few as 60 exposure trials.

Citations

May 25, 2012·Experimental Brain Research·Mirjam Keetels, Jean Vroomen
May 28, 2013·Attention, Perception & Psychophysics·Lihan Chen, Jean Vroomen
Jan 28, 2012·The Journal of the Acoustical Society of America·Daniel L ValenteShane A Myrbeck
Aug 5, 2015·Scientific Reports·Patrick Bruns, Brigitte Röder
Jan 13, 2015·Cerebral Cortex·Akiko CallanHiroshi Ando
Mar 22, 2015·Experimental Brain Research·Catarina MendonçaHans Colonius
Jan 27, 2015·The Journal of the Acoustical Society of America·Paul LuizardCatherine Guastavino
Dec 30, 2017·Psychological Research·Patrick Bruns, Brigitte Röder
Apr 11, 2018·Psychological Science·Christopher C Berger, H Henrik Ehrsson
Aug 2, 2018·PloS One·Adam K BosenGary D Paige
Aug 7, 2014·The Journal of the Acoustical Society of America·Paul Luizard, Brian F G Katz
Oct 2, 2019·Frontiers in Integrative Neuroscience·Patrick Bruns
Mar 27, 2018·PeerJ·Majed Samad, Ladan Shams
Feb 6, 2020·Frontiers in Integrative Neuroscience·Alexander KramerPatrick Bruns

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