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The entropic tongue: Disorganization of natural language under LSD

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dc.contributor.author Sanz, Camila
dc.contributor.author Pallavicini, Carla
dc.contributor.author Carrillo, Facundo
dc.contributor.author Zamberlan, Federico
dc.contributor.author Sigman, Mariano
dc.contributor.author Mota, Natalia
dc.contributor.author Copelli, Mauro
dc.contributor.author Ribeiro, Sidarta
dc.contributor.author Nutt, David
dc.contributor.author Carhart-Harris, Robin
dc.contributor.author Tagliazucchi, Enzo
dc.date.accessioned 2021-09-29T15:11:02Z
dc.date.available 2021-09-29T15:11:02Z
dc.date.issued 2020-12-08
dc.identifier.citation Sanz C., Pallavicini C., Carrillo F., Zamberlan F., Sigman M., Mota N., Copelli M., Ribeiro S., Nutt D., Carhart-Harris R., Tagliazucchi E. The entropic tongue: Disorganization of natural language under LSD. Conscious Cogn. 2021 Jan;87:103070. doi: 10.1016/j.concog.2020.103070. es_ES
dc.identifier.uri https://repositorio.fleni.org.ar/xmlui/handle/123456789/594
dc.identifier.uri https://doi.org/10.1016/j.concog.2020.103070
dc.description.abstract Serotonergic psychedelics have been suggested to mirror certain aspects of psychosis, and, more generally, elicit a state of consciousness underpinned by increased entropy of on-going neural activity. We investigated the hypothesis that language produced under the effects of lysergic acid diethylamide (LSD) should exhibit increased entropy and reduced semantic coherence. Computational analysis of interviews conducted at two different time points after 75 μg of intravenous LSD verified this prediction. Non-semantic analysis of speech organization revealed increased verbosity and a reduced lexicon, changes that are more similar to those observed during manic psychoses than in schizophrenia, which was confirmed by direct comparison with reference samples. Importantly, features related to language organization allowed machine learning classifiers to identify speech under LSD with accuracy comparable to that obtained by examining semantic content. These results constitute a quantitative and objective characterization of disorganized natural speech as a landmark feature of the psychedelic state. es_ES
dc.language.iso eng es_ES
dc.publisher Academic Press es_ES
dc.rights info:eu-repo/semantics/openAccess
dc.rights.uri https://creativecommons.org/licenses/by/2.5/ar/
dc.subject Entropy es_ES
dc.subject Entropía es_ES
dc.subject Tongue es_ES
dc.subject Lengua es_ES
dc.title The entropic tongue: Disorganization of natural language under LSD es_ES
dc.type info:eu-repo/semantics/article es_ES
dc.type info:eu-repo/semantics/publishedVersion
dc.description.fil Fil: Pallavicini, Carla. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Fleni; Argentina.
dc.description.fil Fil: Sanz, Camila. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina.
dc.description.fil Fil: Carrillo, Facundo. Applied Artificial Intelligence Lab (ICC-CONICET); Argentina.
dc.description.fil Fil: Zamberlan, Federico. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina.
dc.description.fil Fil: Sigman, Mariano. Universidad Torcuato Di Tella; Argentina.
dc.description.fil Fil: Mota, Natalia. Federal University of Rio Grande do Norte. Brain Institute; Brasil.
dc.description.fil Fil: Copelli, Mauro. Federal University of Pernambuco. Fhysics Department; Brasil.
dc.description.fil Fil: Ribeiro, Sidarta. Federal University of Rio Grande do Norte. Brain Institute; Brasil.
dc.description.fil Fil: Nutt, David. Imperial College London. Department of Medicine. Centre for Psychedelic Research; Reino Unidos.
dc.description.fil Fil: Carhart-Harris, Robin. Imperial College London. Department of Medicine. Centre for Psychedelic Research; Reino Unidos.
dc.description.fil Fil: Tagliazucchi, Enzo. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina.
dc.relation.ispartofVOLUME 87
dc.relation.ispartofPAGINATION 103070
dc.relation.ispartofCOUNTRY Estados Unidos
dc.relation.ispartofCITY San Diego
dc.relation.ispartofTITLE Consciousness and cognition
dc.relation.ispartofISSN 1090-2376
dc.type.snrd info:ar-repo/semantics/artículo es_ES


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