Autonomic regulation across sleep and wake during an Antarctic overwintering

Autores
Tortello, Camila; Folgueira, Agustín; Cauda, B.; González, L. E.; Sala Lozano, E.; Pattyn, N.; Simonelli, G.; Plano, Santiago A.; Vigo, Daniel E.
Año de publicación
2026
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fil: Tortello, Camila. Pontificia Universidad Católica Argentina. Facultad de Ciencias Médicas. Instituto de Investigaciones Biomédicas. Laboratorio de Cronofisiología; Argentina
Fil: Folgueira, Agustín. Universidad de la Defensa Nacional. Secretaría de Ciencia, Tecnología e Innovación; Argentina
Fil: Cauda, B. Comando Conjunto Antártico; Argentina
Fil: González, L. E. Comando Conjunto Antártico; Argentina
Fil: Sala Lozano, E. Instituto Antártico Argentino; Argentina
Fil: Pattyn, N. Université de Montréal. Faculté de Médecine. Département de Neurosciences; Canadá
Fil: Simonelli, G. Université de Montréal. Faculté de Médecine. Département de Neurosciences; Canadá
Fil: Plano, Santiago A. Pontificia Universidad Católica Argentina. Facultad de Ciencias Médicas. Instituto de Investigaciones Biomédicas (BIOMED); Argentina
Fil: Vigo, Daniel E. Pontificia Universidad Católica Argentina. Facultad de Ciencias Médicas. Instituto de Investigaciones Biomédicas (BIOMED); Argentina
Fil: Vigo, Daniel E. Katholieke Universiteit Leuven. Faculty of Psychology and Educational Sciences; Bélgica
Isolated, confined and extreme environments like Antarctic overwinterings present significant challenges to human psychophysiological adaptation. While previous evidence suggests that such conditions affect autonomic response, the extent to which human physiology adapts, in particular, the sleep-wake cycle and circadian rhythms, remains unclear. To assess the impact of prolonged isolation and the polar night on autonomic nervous system activity, we conducted an observational and longitudinal study at Belgrano II Argentine Antarctic station over a year-long campaign. Heart rate variability, a measure of cardiac autonomic modulation, was computed in 13 crewmembers over 24-hour periods every two months. Analysis revealed a decrease in parasympathetic regulation during wakefulness and an increase during sleep, in association with the increasing duration of isolation. At the same time, parasympathetic activity during sleep decreased during the polar night, suggesting a distinct seasonal effect. These findings offer novel insights into how isolation and the polar night influence autonomic regulation. Understanding these physiological adaptations is crucial for developing effective countermeasures to mitigate stress-related health issues in extreme environments.
Fuente
Scientific Reports, Volume 16, Article Number 31009, 2026
Materia
RITMOS CIRCADIANOS
SUEÑO
ANTARTIDA
SISTEMA NERVIOSO AUTONOMO
AISLAMIENTO
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
Repositorio Institucional (UCA)
Institución
Pontificia Universidad Católica Argentina
OAI Identificador
oai:ucacris:123456789/21939
Acceder
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oai_identifier_str oai:ucacris:123456789/21939
network_acronym_str RIUCA
repository_id_str 2585
network_name_str Repositorio Institucional (UCA)
spelling Autonomic regulation across sleep and wake during an Antarctic overwinteringTortello, CamilaFolgueira, AgustínCauda, B.González, L. E.Sala Lozano, E.Pattyn, N.Simonelli, G.Plano, Santiago A.Vigo, Daniel E.RITMOS CIRCADIANOSSUEÑOANTARTIDASISTEMA NERVIOSO AUTONOMOAISLAMIENTOFil: Tortello, Camila. Pontificia Universidad Católica Argentina. Facultad de Ciencias Médicas. Instituto de Investigaciones Biomédicas. Laboratorio de Cronofisiología; ArgentinaFil: Folgueira, Agustín. Universidad de la Defensa Nacional. Secretaría de Ciencia, Tecnología e Innovación; ArgentinaFil: Cauda, B. Comando Conjunto Antártico; ArgentinaFil: González, L. E. Comando Conjunto Antártico; ArgentinaFil: Sala Lozano, E. Instituto Antártico Argentino; ArgentinaFil: Pattyn, N. Université de Montréal. Faculté de Médecine. Département de Neurosciences; CanadáFil: Simonelli, G. Université de Montréal. Faculté de Médecine. Département de Neurosciences; CanadáFil: Plano, Santiago A. Pontificia Universidad Católica Argentina. Facultad de Ciencias Médicas. Instituto de Investigaciones Biomédicas (BIOMED); ArgentinaFil: Vigo, Daniel E. Pontificia Universidad Católica Argentina. Facultad de Ciencias Médicas. Instituto de Investigaciones Biomédicas (BIOMED); ArgentinaFil: Vigo, Daniel E. Katholieke Universiteit Leuven. Faculty of Psychology and Educational Sciences; BélgicaIsolated, confined and extreme environments like Antarctic overwinterings present significant challenges to human psychophysiological adaptation. While previous evidence suggests that such conditions affect autonomic response, the extent to which human physiology adapts, in particular, the sleep-wake cycle and circadian rhythms, remains unclear. To assess the impact of prolonged isolation and the polar night on autonomic nervous system activity, we conducted an observational and longitudinal study at Belgrano II Argentine Antarctic station over a year-long campaign. Heart rate variability, a measure of cardiac autonomic modulation, was computed in 13 crewmembers over 24-hour periods every two months. Analysis revealed a decrease in parasympathetic regulation during wakefulness and an increase during sleep, in association with the increasing duration of isolation. At the same time, parasympathetic activity during sleep decreased during the polar night, suggesting a distinct seasonal effect. These findings offer novel insights into how isolation and the polar night influence autonomic regulation. Understanding these physiological adaptations is crucial for developing effective countermeasures to mitigate stress-related health issues in extreme environments.Nature Publishing Group2026info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttps://repositorio.uca.edu.ar/handle/123456789/219392045-2322Scientific Reports, Volume 16, Article Number 31009, 2026reponame:Repositorio Institucional (UCA)instname:Pontificia Universidad Católica ArgentinaengAntártidainfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/4.0/2026-09-28T11:10:43Zoai:ucacris:123456789/21939instacron:UCAInstitucionalhttps://repositorio.uca.edu.ar/Universidad privadaNo correspondehttps://repositorio.uca.edu.ar/oaiclaudia_fernandez@uca.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:25852026-09-28 11:10:44.317Repositorio Institucional (UCA) - Pontificia Universidad Católica Argentinafalse
dc.title.none.fl_str_mv Autonomic regulation across sleep and wake during an Antarctic overwintering
title Autonomic regulation across sleep and wake during an Antarctic overwintering
spellingShingle Autonomic regulation across sleep and wake during an Antarctic overwintering
Tortello, Camila
RITMOS CIRCADIANOS
SUEÑO
ANTARTIDA
SISTEMA NERVIOSO AUTONOMO
AISLAMIENTO
title_short Autonomic regulation across sleep and wake during an Antarctic overwintering
title_full Autonomic regulation across sleep and wake during an Antarctic overwintering
title_fullStr Autonomic regulation across sleep and wake during an Antarctic overwintering
title_full_unstemmed Autonomic regulation across sleep and wake during an Antarctic overwintering
title_sort Autonomic regulation across sleep and wake during an Antarctic overwintering
dc.creator.none.fl_str_mv Tortello, Camila
Folgueira, Agustín
Cauda, B.
González, L. E.
Sala Lozano, E.
Pattyn, N.
Simonelli, G.
Plano, Santiago A.
Vigo, Daniel E.
author Tortello, Camila
author_facet Tortello, Camila
Folgueira, Agustín
Cauda, B.
González, L. E.
Sala Lozano, E.
Pattyn, N.
Simonelli, G.
Plano, Santiago A.
Vigo, Daniel E.
author_role author
author2 Folgueira, Agustín
Cauda, B.
González, L. E.
Sala Lozano, E.
Pattyn, N.
Simonelli, G.
Plano, Santiago A.
Vigo, Daniel E.
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv RITMOS CIRCADIANOS
SUEÑO
ANTARTIDA
SISTEMA NERVIOSO AUTONOMO
AISLAMIENTO
topic RITMOS CIRCADIANOS
SUEÑO
ANTARTIDA
SISTEMA NERVIOSO AUTONOMO
AISLAMIENTO
dc.description.none.fl_txt_mv Fil: Tortello, Camila. Pontificia Universidad Católica Argentina. Facultad de Ciencias Médicas. Instituto de Investigaciones Biomédicas. Laboratorio de Cronofisiología; Argentina
Fil: Folgueira, Agustín. Universidad de la Defensa Nacional. Secretaría de Ciencia, Tecnología e Innovación; Argentina
Fil: Cauda, B. Comando Conjunto Antártico; Argentina
Fil: González, L. E. Comando Conjunto Antártico; Argentina
Fil: Sala Lozano, E. Instituto Antártico Argentino; Argentina
Fil: Pattyn, N. Université de Montréal. Faculté de Médecine. Département de Neurosciences; Canadá
Fil: Simonelli, G. Université de Montréal. Faculté de Médecine. Département de Neurosciences; Canadá
Fil: Plano, Santiago A. Pontificia Universidad Católica Argentina. Facultad de Ciencias Médicas. Instituto de Investigaciones Biomédicas (BIOMED); Argentina
Fil: Vigo, Daniel E. Pontificia Universidad Católica Argentina. Facultad de Ciencias Médicas. Instituto de Investigaciones Biomédicas (BIOMED); Argentina
Fil: Vigo, Daniel E. Katholieke Universiteit Leuven. Faculty of Psychology and Educational Sciences; Bélgica
Isolated, confined and extreme environments like Antarctic overwinterings present significant challenges to human psychophysiological adaptation. While previous evidence suggests that such conditions affect autonomic response, the extent to which human physiology adapts, in particular, the sleep-wake cycle and circadian rhythms, remains unclear. To assess the impact of prolonged isolation and the polar night on autonomic nervous system activity, we conducted an observational and longitudinal study at Belgrano II Argentine Antarctic station over a year-long campaign. Heart rate variability, a measure of cardiac autonomic modulation, was computed in 13 crewmembers over 24-hour periods every two months. Analysis revealed a decrease in parasympathetic regulation during wakefulness and an increase during sleep, in association with the increasing duration of isolation. At the same time, parasympathetic activity during sleep decreased during the polar night, suggesting a distinct seasonal effect. These findings offer novel insights into how isolation and the polar night influence autonomic regulation. Understanding these physiological adaptations is crucial for developing effective countermeasures to mitigate stress-related health issues in extreme environments.
description Fil: Tortello, Camila. Pontificia Universidad Católica Argentina. Facultad de Ciencias Médicas. Instituto de Investigaciones Biomédicas. Laboratorio de Cronofisiología; Argentina
publishDate 2026
dc.date.none.fl_str_mv 2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://repositorio.uca.edu.ar/handle/123456789/21939
2045-2322
url https://repositorio.uca.edu.ar/handle/123456789/21939
identifier_str_mv 2045-2322
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.coverage.none.fl_str_mv Antártida
dc.publisher.none.fl_str_mv Nature Publishing Group
publisher.none.fl_str_mv Nature Publishing Group
dc.source.none.fl_str_mv Scientific Reports, Volume 16, Article Number 31009, 2026
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
_version_ 1877586771686981632
score 13.265058

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