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Conscious Perception as Integrated Information Patterns in Human Electrocorticography

Haun, Andrew M. and Oizumi, Masafumi and Kovach, Christopher K. and Kawasaki, Hiroto and Oya, Hiroyuki and Howard, Matthew A. and Adolphs, Ralph and Tsuchiya, Naotsugu (2017) Conscious Perception as Integrated Information Patterns in Human Electrocorticography. eNeuro, 4 (5). Art. No. e0085-17. ISSN 2373-2822. PMCID PMC5659238. doi:10.1523/ENEURO.0085-17.2017.

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A significant problem in neuroscience concerns the distinction between neural processing that is correlated with conscious percepts from processing that is not. Here, we tested if a hierarchical structure of causal interactions between neuronal populations correlates with conscious perception. We derived the hierarchical causal structure as a pattern of integrated information, inspired by the integrated information theory (IIT) of consciousness. We computed integrated information patterns from intracranial electrocorticography (ECoG) from six human neurosurgical patients with electrodes implanted over lateral and ventral cortices. During recording, subjects viewed continuous flash suppression (CFS) and backward masking (BM) stimuli intended to dissociate conscious percept from stimulus, and unmasked suprathreshold stimuli. Object-sensitive areas revealed correspondence between conscious percepts and integrated information patterns. We quantified this correspondence using unsupervised classification methods that revealed clustering of visual experiences with integrated information, but not with broader information measures including mutual information and entropy. Our findings point to a significant role of locally integrated information for understanding the neural substrate of conscious object perception.

Item Type:Article
Related URLs:
URLURL TypeDescription CentralArticle
Oizumi, Masafumi0000-0001-8802-2607
Kovach, Christopher K.0000-0002-0117-151X
Kawasaki, Hiroto0000-0002-7688-9171
Oya, Hiroyuki0000-0002-1733-5478
Adolphs, Ralph0000-0002-8053-9692
Tsuchiya, Naotsugu0000-0003-4216-8701
Additional Information:© 2017 Haun et al. This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International license, which permits unrestricted use, distribution and reproduction in any medium provided that the original work is properly attributed. Received March 9, 2017; accepted July 28, 2017; First published September 19, 2017. The authors declare no competing financial interests. Author contributions: A.M.H., N.T., C.K.K., H.K., M.A.H., and R.A. designed research; H.K., H.O., M.A.H., C.K.K., N.T., and M.O. performed research; M.A.H., N.T., H.K., H.O., and M.O. analyzed data; A.M.H. and N.T. wrote the paper. This work was supported by an Endeavor Fellowship from the Australian Department of Education (A.M.H.), National Institutes of Health Grants R01 DC004290 and UL1RR024979 (to C.K., H.K., H.O., and M.A.H.), and the Australian Research Council Future Fellowship FT120100619 and the Discovery Project DP130100194 (to N.T.). We thank all subjects for their participation in the study, the medical team at University of Iowa Hospital for their assistance, Haiming Chen for his technical assistance, Jochem van Kempen and Fabiano Baroni for their parallel analyses of percept/stimulus decoding in the same dataset, and Jeroen van Boxtel and Matt Davidson for comments on this manuscript.
Funding AgencyGrant Number
Department of Education (Australia)UNSPECIFIED
NIHR01 DC004290
Australian Research CouncilFT120100619
Australian Research CouncilDP130100194
Subject Keywords:consciousness; electrocorticography; face perception; integrated information theory
Issue or Number:5
PubMed Central ID:PMC5659238
Record Number:CaltechAUTHORS:20171108-132445796
Persistent URL:
Official Citation:Conscious Perception as Integrated Information Patterns in Human Electrocorticography Andrew M. Haun, Masafumi Oizumi, Christopher K. Kovach, Hiroto Kawasaki, Hiroyuki Oya, Matthew A. Howard, Ralph Adolphs, Naotsugu Tsuchiya eNeuro 19 September 2017, 4 (5) ENEURO.0085-17.2017; DOI: 10.1523/ENEURO.0085-17.2017
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:83068
Deposited By: Tony Diaz
Deposited On:08 Nov 2017 22:55
Last Modified:15 Nov 2021 19:55

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