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  Common neural signatures of psychedelics: Frequency-specific energy changes and repertoire expansion revealed using connectome-harmonic decomposition

Atasoy, S., Vohryzek, J., Deco, G., Carhart-Harris, R. L., & Kringelbach, M. L. (2018). Common neural signatures of psychedelics: Frequency-specific energy changes and repertoire expansion revealed using connectome-harmonic decomposition. In Progress in Brain Research (pp. 97-120). Amsterdam: Elsevier. doi:10.1016/bs.pbr.2018.08.009.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0002-7041-6 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-BF6F-B
Genre: Book Chapter

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 Creators:
Atasoy, Selen1, 2, Author
Vohryzek, Jakub1, 2, Author
Deco, Gustavo3, 4, 5, 6, Author              
Carhart-Harris, Robin L.7, Author
Kringelbach, Morten L.1, 2, Author
Affiliations:
1Department of Psychiatry, University of Oxford, United Kingdom, ou_persistent22              
2Center for Music in the Brain, Aarhus University, Danmark, ou_persistent22              
3Computational Neuroscience Group, Department of Information and Communication Technologies, Center for Brain and Cognition, University Pompeu Fabra, Barcelona, Spain, ou_persistent22              
4Department Neuropsychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634551              
5Catalan Institution for Research and Advanced Studies (ICREA), Barcelona, Spain, ou_persistent22              
6School of Psychological Sciences, Monash University, Melbourne, Australia, ou_persistent22              
7Psychedelic Research Group, Division of Brain Sciences, Faculty of Medicine, Imperial College London, United Kingdom, ou_persistent22              

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Free keywords: Connectome harmonics; Brain; Psychedelics; Psilocybin; LSD
 Abstract: The search for the universal laws of human brain function is still on-going but progress is being made. Here we describe the novel concepts of connectome harmonics and connectome-harmonic decomposition, which can be used to characterize the brain activity associated with any mental state. We use this new frequency-specific language to describe the brain activity elicited by psilocybin and LSD and find remarkably similar effects in terms of increases in total energy and power, as well as frequency-specific energy changes and repertoire expansion. In addition, we find enhanced signatures of criticality suggesting that the brain dynamics tune toward criticality in both psychedelic elicited states. Overall, our findings provide new evidence for the remarkable ability of psychedelics to change the spatiotemporal dynamics of the human brain.

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Language(s): eng - English
 Dates: 2018-10-252018
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1016/bs.pbr.2018.08.009
PMID: 30471684
Other: Epub 2018
 Degree: -

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Title: Progress in Brain Research
Source Genre: Series
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Publ. Info: Amsterdam : Elsevier
Pages: - Volume / Issue: 242 Sequence Number: - Start / End Page: 97 - 120 Identifier: ISSN: 0079-6123
CoNE: https://pure.mpg.de/cone/journals/resource/954926958899