Visually induced plasticity of auditory spatial perception in macaques

Current Biology : CB
Timothy M Woods, Gregg H Recanzone

Abstract

When experiencing spatially disparate visual and auditory stimuli, a common percept is that the sound originates from the location of the visual stimulus, an illusion known as the ventriloquism effect. This illusion can persist for tens of minutes, a phenomenon termed the ventriloquism aftereffect. The underlying neuronal mechanisms of this rapidly induced plasticity remain unclear; indeed, it remains untested whether similar multimodal interactions occur in other species. We therefore tested whether macaque monkeys experience the ventriloquism aftereffect similar to the way humans do. The ability of two monkeys to determine which side of the midline a sound was presented from was tested before and after a period of 20-60 min in which the monkeys experienced either spatially identical or spatially disparate auditory and visual stimuli. In agreement with human studies, the monkeys did experience a shift in their auditory spatial perception in the direction of the spatially disparate visual stimulus, and the aftereffect did not transfer across sounds that differed in frequency by two octaves. These results show that macaque monkeys experience the ventriloquism aftereffect similar to the way humans do in all tested respects, indic...Continue Reading

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Citations

Nov 7, 2008·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Andrew J King
Aug 7, 2007·Annual Review of Psychology·Gregg H Recanzone, Mitchell L Sutter
Jul 13, 2012·Journal of Neurophysiology·Christopher W BishopLee M Miller
Oct 28, 2011·Journal of Neurophysiology·David A Bulkin, Jennifer M Groh
Apr 20, 2012·Journal of Neurophysiology·Jungah Lee, Jennifer M Groh
Mar 3, 2006·PLoS Biology·Oliver KacelnikAndrew J King
Aug 11, 2012·PloS One·Elisa MagossoMauro Ursino
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Aug 5, 2015·Scientific Reports·Patrick Bruns, Brigitte Röder
Mar 8, 2013·The European Journal of Neuroscience·Denise C P B M Van Barneveld, Marc M Van Wanrooij
Apr 14, 2011·Annals of the New York Academy of Sciences·Gregg H Recanzone
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Apr 22, 2021·Annual Review of Neuroscience·Uta Noppeney

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