Pupil size reveals arousal level fluctuations in human sleep

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Název: Pupil size reveals arousal level fluctuations in human sleep
Autoři: Manuel Carro-Domínguez, Stephanie Huwiler, Stella Oberlin, Timona Leandra Oesch, Gabriela Badii, Anita Lüthi, Nicole Wenderoth, Sarah Nadine Meissner, Caroline Lustenberger
Zdroj: Nat Commun
Nature Communications, Vol 16, Iss 1, Pp 1-14 (2025)
Nature communications, vol. 16, no. 1, pp. 2070
Nature Communications, 16 (1)
Informace o vydavateli: Springer Science and Business Media LLC, 2025.
Rok vydání: 2025
Témata: Male, Adult, Science, Polysomnography, Pupil, Electroencephalography, Article, Humans, Pupil/physiology, Arousal/physiology, Female, Sleep/physiology, Young Adult, Acoustic Stimulation, Arousal, Sleep
Popis: Recent animal research has revealed the intricate dynamics of arousal levels that are important for maintaining proper sleep resilience and memory consolidation. In humans, changes in arousal level are believed to be a determining characteristic of healthy and pathological sleep but tracking arousal level fluctuations has been methodologically challenging. Here we measured pupil size, an established indicator of arousal levels, by safely taping the right eye open during overnight sleep and tested whether pupil size affects cortical response to auditory stimulation. We show that pupil size dynamics change as a function of important sleep events across different temporal scales. In particular, our results show pupil size to be inversely related to the occurrence of sleep spindle clusters, a marker of sleep resilience. Additionally, we found pupil size prior to auditory stimulation to influence the evoked response, most notably in delta power, a marker of several restorative and regenerative functions of sleep. Recording pupil size dynamics provides insights into the interplay between arousal levels and sleep oscillations.
Druh dokumentu: Article
Other literature type
Popis souboru: application/pdf; application/application/pdf
Jazyk: English
ISSN: 2041-1723
DOI: 10.1038/s41467-025-57289-5
DOI: 10.3929/ethz-b-000726538
Přístupová URL adresa: https://pubmed.ncbi.nlm.nih.gov/40021662
https://doaj.org/article/4cec5f6df7a34527a7f65596cd64f552
https://serval.unil.ch/notice/serval:BIB_BB615924CEA5
https://serval.unil.ch/resource/serval:BIB_BB615924CEA5.P001/REF.pdf
http://nbn-resolving.org/urn/resolver.pl?urn=urn:nbn:ch:serval-BIB_BB615924CEA53
http://hdl.handle.net/20.500.11850/726538
Rights: CC BY
Přístupové číslo: edsair.doi.dedup.....5feea1a40b9ee74e32f3cfe8f2f4efc7
Databáze: OpenAIRE
Popis
Abstrakt:Recent animal research has revealed the intricate dynamics of arousal levels that are important for maintaining proper sleep resilience and memory consolidation. In humans, changes in arousal level are believed to be a determining characteristic of healthy and pathological sleep but tracking arousal level fluctuations has been methodologically challenging. Here we measured pupil size, an established indicator of arousal levels, by safely taping the right eye open during overnight sleep and tested whether pupil size affects cortical response to auditory stimulation. We show that pupil size dynamics change as a function of important sleep events across different temporal scales. In particular, our results show pupil size to be inversely related to the occurrence of sleep spindle clusters, a marker of sleep resilience. Additionally, we found pupil size prior to auditory stimulation to influence the evoked response, most notably in delta power, a marker of several restorative and regenerative functions of sleep. Recording pupil size dynamics provides insights into the interplay between arousal levels and sleep oscillations.
ISSN:20411723
DOI:10.1038/s41467-025-57289-5