Park, H. and Kayser, C. (2019) Shared neural underpinnings of multisensory integration and trial-by-trial perceptual recalibration in humans. eLife, 8, e47001. (doi: 10.7554/elife.47001) (PMID:31246172) (PMCID:PMC6660215)
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Abstract
Perception adapts to mismatching multisensory information, both when different cues appear simultaneously and when they appear sequentially. While both multisensory integration and adaptive trial-by-trial recalibration are central for behavior, it remains unknown whether they are mechanistically linked and arise from a common neural substrate. To relate the neural underpinnings of sensory integration and recalibration, we measured whole-brain magnetoencephalography while human participants performed an audio-visual ventriloquist task. Using single-trial multivariate analysis, we localized the perceptually-relevant encoding of multisensory information within and between trials. While we found neural signatures of multisensory integration within temporal and parietal regions, only medial superior parietal activity encoded past and current sensory information and mediated the perceptual recalibration within and between trials. These results highlight a common neural substrate of sensory integration and perceptual recalibration, and reveal a role of medial parietal regions in linking present and previous multisensory evidence to guide adaptive behavior.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Kayser, Professor Christoph |
| Creator Roles: | Kayser, C.Conceptualization, Resources, Software, Supervision, Funding acquisition, Validation, Methodology, Writing – original draft, Project administration, Writing – review and editing |
| Authors: | Park, H., and Kayser, C. |
| College/School: | College of Medical Veterinary and Life Sciences > School of Psychology & Neuroscience |
| Journal Name: | eLife |
| Publisher: | eLife Sciences Publications |
| ISSN: | 2050-084X |
| ISSN (Online): | 2050-084X |
| Copyright Holders: | Copyright © 2019 Park and Kayser |
| First Published: | First published in eLife 8: e47001 |
| Publisher Policy: | Reproduced under a Creative Commons License |
| Data DOI: | 10.5061/dryad.t0p9c93 |
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