Neurochemical models of near-death experiences : a large-scale study based on the semantic similarity of written reports
- Autores
- Martial, Charlotte; Cassol, Helena; Charland-Verville, Vanessa; Pallavicini, Carla; Sanz, Camila; Zamberlan, Federico; Martínez Vivot, Rocío; Erowid, Fire; Erowid, Earth; Laureys, Steven; Greyson, Bruce; Tagliazucchi, Enzo
- Año de publicación
- 2019
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión aceptada
- Descripción
- Fil: Martial, Charlotte. University Hospital of Liège. Consciousness and Neurology Department; Bélgica
Fil: Cassol, Helena. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Cassol, Helena. Universidad de Buenos Aires. Instituto de Física de Buenos Aires; Argentina
Fil: Charland-Verville, Vanessa. University Hospital of Liège. Consciousness and Neurology Department; Bélgica
Fil: Pallavicini, Carla. Universidad de Buenos Aires. Departamento de Física; Argentina
Fil: Pallavicini, Carla. Fundación para la lucha contra las enfermedades neurológicas de la infancia; Argentina
Fil: Martínez Vivot, Rocío. Pontificia Universidad Católica Argentina. Facultad de Ciencias Médicas. Instituto de Investigaciones Biomédicas; Argentina
Fil: Martínez Vivot, Rocío. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Zamberlan, Federico. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Zamberlan, Federico. Universidad de Buenos Aires. Instituto de Física de Buenos Aires; Argentina
Fil: Zamberlan, Federico. Universidad de Buenos Aires. Departamento de Física; Argentina
Fil: Erowid, Fire. Erowid Center; Estados Unidos
Fil: Erowid, Earth. Erowid Center; Estados Unidos
Fil: Laureys, Steven. University Hospital of Liège. Consciousness and Neurology Department; Bélgica
Fil: Greyson, Bruce. University of Virginia Health System. Department of Psychiatry and Neurobehavioral Sciences; Estados Unidos
Fil: Tagliazucchi, Enzo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Tagliazucchi, Enzo. Universidad de Buenos Aires. Instituto de Física de Buenos Aires; Argentina
Fil: Tagliazucchi, Enzo. Universidad de Buenos Aires. Instituto de Física de Buenos Aires; Argentina
Fil: Tagliazucchi, Enzo. Institut du cerveau et de la moelle épinière; Francia
Abstract: The real or perceived proximity to death often results in a non-ordinary state of consciousness characterized by phenomenological features such as the perception of leaving the body boundaries, feelings of peace, bliss and timelessness, life review, the sensation of traveling through a tunnel and an irreversible threshold. Near-death experiences (NDEs) are comparable among individuals of different cultures, suggesting an underlying neurobiological mechanism. Anecdotal accounts of the similarity between NDEs and certain drug-induced altered states of consciousness prompted us to perform a large-scale comparative analysis of these experiences. After assessing the semantic similarity between ≈15,000 reports linked to the use of 165 psychoactive substances and 625 NDE narratives, we determined that the N-methyl-D-aspartate (NMDA) receptor antagonist ketamine consistently resulted in reports most similar to those associated with NDEs. Ketamine was followed by Salvia divinorum (a plant containing a potent and selective κ receptor agonist) and a series of serotonergic psychedelics, including the endogenous serotonin 2A receptor agonist N,N-Dimethyltryptamine (DMT). This similarity was driven by semantic concepts related to consciousness of the self and the environment, but also by those associated with the therapeutic, ceremonial and religious aspects of drug use. Our analysis sheds light on the long-standing link between certain drugs and the experience of "dying", suggests that ketamine could be used as a safe and reversible experimental model for NDE phenomenology, and supports the speculation that endogenous NMDA antagonists with neuroprotective properties may be released in the proximity of death. - Fuente
- Consciousness and Cognition. 2019, 69
- Materia
-
MUERTE
FENOMENOLOGIA
SUSTANCIAS PSICOACTIVAS
FARMACOLOGIA
ALUCINOGENOS
CONCIENCIA - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
- Institución
- Pontificia Universidad Católica Argentina
- OAI Identificador
- oai:ucacris:123456789/14227
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Neurochemical models of near-death experiences : a large-scale study based on the semantic similarity of written reportsMartial, CharlotteCassol, HelenaCharland-Verville, VanessaPallavicini, CarlaSanz, CamilaZamberlan, FedericoMartínez Vivot, RocíoErowid, FireErowid, EarthLaureys, StevenGreyson, BruceTagliazucchi, EnzoMUERTEFENOMENOLOGIASUSTANCIAS PSICOACTIVASFARMACOLOGIAALUCINOGENOSCONCIENCIAFil: Martial, Charlotte. University Hospital of Liège. Consciousness and Neurology Department; BélgicaFil: Cassol, Helena. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Cassol, Helena. Universidad de Buenos Aires. Instituto de Física de Buenos Aires; ArgentinaFil: Charland-Verville, Vanessa. University Hospital of Liège. Consciousness and Neurology Department; BélgicaFil: Pallavicini, Carla. Universidad de Buenos Aires. Departamento de Física; ArgentinaFil: Pallavicini, Carla. Fundación para la lucha contra las enfermedades neurológicas de la infancia; ArgentinaFil: Martínez Vivot, Rocío. Pontificia Universidad Católica Argentina. Facultad de Ciencias Médicas. Instituto de Investigaciones Biomédicas; ArgentinaFil: Martínez Vivot, Rocío. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Zamberlan, Federico. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Zamberlan, Federico. Universidad de Buenos Aires. Instituto de Física de Buenos Aires; ArgentinaFil: Zamberlan, Federico. Universidad de Buenos Aires. Departamento de Física; ArgentinaFil: Erowid, Fire. Erowid Center; Estados UnidosFil: Erowid, Earth. Erowid Center; Estados UnidosFil: Laureys, Steven. University Hospital of Liège. Consciousness and Neurology Department; BélgicaFil: Greyson, Bruce. University of Virginia Health System. Department of Psychiatry and Neurobehavioral Sciences; Estados UnidosFil: Tagliazucchi, Enzo. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Tagliazucchi, Enzo. Universidad de Buenos Aires. Instituto de Física de Buenos Aires; ArgentinaFil: Tagliazucchi, Enzo. Universidad de Buenos Aires. Instituto de Física de Buenos Aires; ArgentinaFil: Tagliazucchi, Enzo. Institut du cerveau et de la moelle épinière; FranciaAbstract: The real or perceived proximity to death often results in a non-ordinary state of consciousness characterized by phenomenological features such as the perception of leaving the body boundaries, feelings of peace, bliss and timelessness, life review, the sensation of traveling through a tunnel and an irreversible threshold. Near-death experiences (NDEs) are comparable among individuals of different cultures, suggesting an underlying neurobiological mechanism. Anecdotal accounts of the similarity between NDEs and certain drug-induced altered states of consciousness prompted us to perform a large-scale comparative analysis of these experiences. After assessing the semantic similarity between ≈15,000 reports linked to the use of 165 psychoactive substances and 625 NDE narratives, we determined that the N-methyl-D-aspartate (NMDA) receptor antagonist ketamine consistently resulted in reports most similar to those associated with NDEs. Ketamine was followed by Salvia divinorum (a plant containing a potent and selective κ receptor agonist) and a series of serotonergic psychedelics, including the endogenous serotonin 2A receptor agonist N,N-Dimethyltryptamine (DMT). This similarity was driven by semantic concepts related to consciousness of the self and the environment, but also by those associated with the therapeutic, ceremonial and religious aspects of drug use. Our analysis sheds light on the long-standing link between certain drugs and the experience of "dying", suggests that ketamine could be used as a safe and reversible experimental model for NDE phenomenology, and supports the speculation that endogenous NMDA antagonists with neuroprotective properties may be released in the proximity of death.Elsevier2019info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttps://repositorio.uca.edu.ar/handle/123456789/142271090-2376 (online)1053-8100 (impreso)10.1016/j.concog.2019.01.01130711788Martial, C. et al. Neurochemical models of near-death experiences : a large-scale study based on the semantic similarity of written reports [en línea]. Consciousness and Cognition. 2019, 69 doi:10.1016/j.concog.2019.01.011 Disponible en: https://repositorio.uca.edu.ar/handle/123456789/14227Consciousness and Cognition. 2019, 69reponame:Repositorio Institucional (UCA)instname:Pontificia Universidad Católica Argentinaenginfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/4.0/2025-07-03T10:58:38Zoai:ucacris:123456789/14227instacron:UCAInstitucionalhttps://repositorio.uca.edu.ar/Universidad privadaNo correspondehttps://repositorio.uca.edu.ar/oaiclaudia_fernandez@uca.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:25852025-07-03 10:58:38.338Repositorio Institucional (UCA) - Pontificia Universidad Católica Argentinafalse |
dc.title.none.fl_str_mv |
Neurochemical models of near-death experiences : a large-scale study based on the semantic similarity of written reports |
title |
Neurochemical models of near-death experiences : a large-scale study based on the semantic similarity of written reports |
spellingShingle |
Neurochemical models of near-death experiences : a large-scale study based on the semantic similarity of written reports Martial, Charlotte MUERTE FENOMENOLOGIA SUSTANCIAS PSICOACTIVAS FARMACOLOGIA ALUCINOGENOS CONCIENCIA |
title_short |
Neurochemical models of near-death experiences : a large-scale study based on the semantic similarity of written reports |
title_full |
Neurochemical models of near-death experiences : a large-scale study based on the semantic similarity of written reports |
title_fullStr |
Neurochemical models of near-death experiences : a large-scale study based on the semantic similarity of written reports |
title_full_unstemmed |
Neurochemical models of near-death experiences : a large-scale study based on the semantic similarity of written reports |
title_sort |
Neurochemical models of near-death experiences : a large-scale study based on the semantic similarity of written reports |
dc.creator.none.fl_str_mv |
Martial, Charlotte Cassol, Helena Charland-Verville, Vanessa Pallavicini, Carla Sanz, Camila Zamberlan, Federico Martínez Vivot, Rocío Erowid, Fire Erowid, Earth Laureys, Steven Greyson, Bruce Tagliazucchi, Enzo |
author |
Martial, Charlotte |
author_facet |
Martial, Charlotte Cassol, Helena Charland-Verville, Vanessa Pallavicini, Carla Sanz, Camila Zamberlan, Federico Martínez Vivot, Rocío Erowid, Fire Erowid, Earth Laureys, Steven Greyson, Bruce Tagliazucchi, Enzo |
author_role |
author |
author2 |
Cassol, Helena Charland-Verville, Vanessa Pallavicini, Carla Sanz, Camila Zamberlan, Federico Martínez Vivot, Rocío Erowid, Fire Erowid, Earth Laureys, Steven Greyson, Bruce Tagliazucchi, Enzo |
author2_role |
author author author author author author author author author author author |
dc.subject.none.fl_str_mv |
MUERTE FENOMENOLOGIA SUSTANCIAS PSICOACTIVAS FARMACOLOGIA ALUCINOGENOS CONCIENCIA |
topic |
MUERTE FENOMENOLOGIA SUSTANCIAS PSICOACTIVAS FARMACOLOGIA ALUCINOGENOS CONCIENCIA |
dc.description.none.fl_txt_mv |
Fil: Martial, Charlotte. University Hospital of Liège. Consciousness and Neurology Department; Bélgica Fil: Cassol, Helena. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Cassol, Helena. Universidad de Buenos Aires. Instituto de Física de Buenos Aires; Argentina Fil: Charland-Verville, Vanessa. University Hospital of Liège. Consciousness and Neurology Department; Bélgica Fil: Pallavicini, Carla. Universidad de Buenos Aires. Departamento de Física; Argentina Fil: Pallavicini, Carla. Fundación para la lucha contra las enfermedades neurológicas de la infancia; Argentina Fil: Martínez Vivot, Rocío. Pontificia Universidad Católica Argentina. Facultad de Ciencias Médicas. Instituto de Investigaciones Biomédicas; Argentina Fil: Martínez Vivot, Rocío. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Zamberlan, Federico. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Zamberlan, Federico. Universidad de Buenos Aires. Instituto de Física de Buenos Aires; Argentina Fil: Zamberlan, Federico. Universidad de Buenos Aires. Departamento de Física; Argentina Fil: Erowid, Fire. Erowid Center; Estados Unidos Fil: Erowid, Earth. Erowid Center; Estados Unidos Fil: Laureys, Steven. University Hospital of Liège. Consciousness and Neurology Department; Bélgica Fil: Greyson, Bruce. University of Virginia Health System. Department of Psychiatry and Neurobehavioral Sciences; Estados Unidos Fil: Tagliazucchi, Enzo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Tagliazucchi, Enzo. Universidad de Buenos Aires. Instituto de Física de Buenos Aires; Argentina Fil: Tagliazucchi, Enzo. Universidad de Buenos Aires. Instituto de Física de Buenos Aires; Argentina Fil: Tagliazucchi, Enzo. Institut du cerveau et de la moelle épinière; Francia Abstract: The real or perceived proximity to death often results in a non-ordinary state of consciousness characterized by phenomenological features such as the perception of leaving the body boundaries, feelings of peace, bliss and timelessness, life review, the sensation of traveling through a tunnel and an irreversible threshold. Near-death experiences (NDEs) are comparable among individuals of different cultures, suggesting an underlying neurobiological mechanism. Anecdotal accounts of the similarity between NDEs and certain drug-induced altered states of consciousness prompted us to perform a large-scale comparative analysis of these experiences. After assessing the semantic similarity between ≈15,000 reports linked to the use of 165 psychoactive substances and 625 NDE narratives, we determined that the N-methyl-D-aspartate (NMDA) receptor antagonist ketamine consistently resulted in reports most similar to those associated with NDEs. Ketamine was followed by Salvia divinorum (a plant containing a potent and selective κ receptor agonist) and a series of serotonergic psychedelics, including the endogenous serotonin 2A receptor agonist N,N-Dimethyltryptamine (DMT). This similarity was driven by semantic concepts related to consciousness of the self and the environment, but also by those associated with the therapeutic, ceremonial and religious aspects of drug use. Our analysis sheds light on the long-standing link between certain drugs and the experience of "dying", suggests that ketamine could be used as a safe and reversible experimental model for NDE phenomenology, and supports the speculation that endogenous NMDA antagonists with neuroprotective properties may be released in the proximity of death. |
description |
Fil: Martial, Charlotte. University Hospital of Liège. Consciousness and Neurology Department; Bélgica |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
acceptedVersion |
dc.identifier.none.fl_str_mv |
https://repositorio.uca.edu.ar/handle/123456789/14227 1090-2376 (online) 1053-8100 (impreso) 10.1016/j.concog.2019.01.011 30711788 Martial, C. et al. Neurochemical models of near-death experiences : a large-scale study based on the semantic similarity of written reports [en línea]. Consciousness and Cognition. 2019, 69 doi:10.1016/j.concog.2019.01.011 Disponible en: https://repositorio.uca.edu.ar/handle/123456789/14227 |
url |
https://repositorio.uca.edu.ar/handle/123456789/14227 |
identifier_str_mv |
1090-2376 (online) 1053-8100 (impreso) 10.1016/j.concog.2019.01.011 30711788 Martial, C. et al. Neurochemical models of near-death experiences : a large-scale study based on the semantic similarity of written reports [en línea]. Consciousness and Cognition. 2019, 69 doi:10.1016/j.concog.2019.01.011 Disponible en: https://repositorio.uca.edu.ar/handle/123456789/14227 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/4.0/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/4.0/ |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
Consciousness and Cognition. 2019, 69 reponame:Repositorio Institucional (UCA) instname:Pontificia Universidad Católica Argentina |
reponame_str |
Repositorio Institucional (UCA) |
collection |
Repositorio Institucional (UCA) |
instname_str |
Pontificia Universidad Católica Argentina |
repository.name.fl_str_mv |
Repositorio Institucional (UCA) - Pontificia Universidad Católica Argentina |
repository.mail.fl_str_mv |
claudia_fernandez@uca.edu.ar |
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13.070432 |