The Journal of the Acoustical Society of AmericaNeurosciencePeer-reviewed journal article
Hemisphere-Specific Properties of the Ventriloquism Aftereffect in Humans and Monkeys
Norbert KopčoiD, Peter LokšaiD, I-Fan LiniD, Jennifer M. GrohiD, Barbara G. Shinn‐CunninghamiD
Abstract
Visual calibration of auditory space requires re-alignment of representations differing in 1) format (auditory hemispheric channels vs. visual maps) and 2) reference frames (head-centered vs. eye-centered). Here, a ventriloquism paradigm from Kop[c]o et al. (J Neurosci, 29, 13809-13814) was used to examine these processes in humans and monkeys for ventriloquism induced within one spatial hemifield. Results show that 1) the auditory representation is adapted even by aligned audio-visual stimuli, and 2) the spatial reference frame is primarily head-centered in humans but mixed in monkeys. These results support the view that the ventriloquism aftereffect is driven by multiple spatially non-uniform processes.\n\nPACS numbers: 43.66.Pn, 43.66.Qp, 43.66.Mk
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