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Hallucinations Under Psychedelics and in the Schizophrenia Spectrum: An Interdisciplinary and Multiscale Comparison

Leptourgos, Pantelis; Fortier-Davy, Martin; Carhart-Harris, Robin; Corlett, Philip R; Dupuis, David; Halberstadt, Adam L; Kometer, Michael; Kozakova, Eva; LarØi, Frank; Noorani, Tehseen N; Preller, Katrin H; Waters, Flavie; Zaytseva, Yuliya; Jardri, Renaud

Hallucinations Under Psychedelics and in the Schizophrenia Spectrum: An Interdisciplinary and Multiscale Comparison Thumbnail


Authors

Pantelis Leptourgos

Martin Fortier-Davy

Robin Carhart-Harris

Philip R Corlett

David Dupuis

Adam L Halberstadt

Michael Kometer

Eva Kozakova

Frank LarØi

Katrin H Preller

Flavie Waters

Yuliya Zaytseva

Renaud Jardri



Abstract

The recent renaissance of psychedelic science has reignited interest in the similarity of drug-induced experiences to those more commonly observed in psychiatric contexts such as the schizophrenia-spectrum. This report from a multidisciplinary working group of the International Consortium on Hallucinations Research (ICHR) addresses this issue, putting special emphasis on hallucinatory experiences. We review evidence collected at different scales of understanding, from pharmacology to brain-imaging, phenomenology and anthropology, highlighting similarities and differences between hallucinations under psychedelics and in the schizophrenia-spectrum disorders. Finally, we attempt to integrate these findings using computational approaches and conclude with recommendations for future research.

Citation

Leptourgos, P., Fortier-Davy, M., Carhart-Harris, R., Corlett, P. R., Dupuis, D., Halberstadt, A. L., …Jardri, R. (2020). Hallucinations Under Psychedelics and in the Schizophrenia Spectrum: An Interdisciplinary and Multiscale Comparison. Schizophrenia Bulletin: The Journal of Psychoses and Related Disorders, 46(6), 1396-1408. https://doi.org/10.1093/schbul/sbaa117

Journal Article Type Article
Online Publication Date Sep 18, 2020
Publication Date 2020-11
Deposit Date Feb 13, 2021
Publicly Available Date Sep 8, 2021
Journal Schizophrenia Bulletin
Print ISSN 0586-7614
Electronic ISSN 1745-1701
Publisher Oxford University Press
Peer Reviewed Peer Reviewed
Volume 46
Issue 6
Pages 1396-1408
DOI https://doi.org/10.1093/schbul/sbaa117

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Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/

Copyright Statement
© The Author(s) 2020. Published by Oxford University Press on behalf of the Maryland Psychiatric Research Center.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/),
which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.





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