Multisensory causal inference in the brain

Kayser, C. and Shams, L. (2015) Multisensory causal inference in the brain. PLoS Biology, 13(2), e1002075. (doi: 10.1371/journal.pbio.1002075) (PMID:25710476) (PMCID:PMC4339834)

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At any given moment, our brain processes multiple inputs from its different sensory modalities (vision, hearing, touch, etc.). In deciphering this array of sensory information, the brain has to solve two problems: (1) which of the inputs originate from the same object and should be integrated and (2) for the sensations originating from the same object, how best to integrate them. Recent behavioural studies suggest that the human brain solves these problems using optimal probabilistic inference, known as Bayesian causal inference. However, how and where the underlying computations are carried out in the brain have remained unknown. By combining neuroimaging-based decoding techniques and computational modelling of behavioural data, a new study now sheds light on how multisensory causal inference maps onto specific brain areas. The results suggest that the complexity of neural computations increases along the visual hierarchy and link specific components of the causal inference process with specific visual and parietal regions.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Kayser, Professor Christoph
Authors: Kayser, C., and Shams, L.
College/School:College of Medical Veterinary and Life Sciences > School of Psychology & Neuroscience
Journal Name:PLoS Biology
Publisher:Public Library of Science
ISSN (Online):1545-7885
Copyright Holders:Copyright © 2015 The Authors
First Published:First published in PLoS Biology 13(2):e1002075
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
658701Pathways and mechanisms underlying the visual enhancement of hearing in challenging environments.Christoph KayserBiotechnology and Biological Sciences Research Council (BBSRC)BB/L027534/1INP - CENTRE FOR COGNITIVE NEUROIMAGING