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Erschienen in: Brain Structure and Function 8/2021

22.08.2021 | Original Article

Mapping the functional brain state of a world champion freediver in static dry apnea

verfasst von: Jitka Annen, Rajanikant Panda, Charlotte Martial, Andrea Piarulli, Guillaume Nery, Leandro R. D. Sanz, Juan M. Valdivia-Valdivia, Didier Ledoux, Olivia Gosseries, Steven Laureys

Erschienen in: Brain Structure and Function | Ausgabe 8/2021

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Abstract

Voluntary apnea showcases extreme human adaptability in trained individuals like professional free divers. We evaluated the psychological and physiological adaptation and the functional cerebral changes using electroencephalography (EEG) and functional Magnetic Resonance Imaging (fMRI) to 6.5 min of dry static apnea performed by a world champion free diver. Compared to resting state at baseline, breath holding was characterized by increased EEG power and functional connectivity in the alpha band, along with decreased delta band connectivity. fMRI connectivity was increased within the default mode network (DMN) and visual areas but decreased in pre- and postcentral cortices. While these changes occurred in regions overlapping with cerebral signatures of several meditation practices, they also display some unique features that suggest an altered somatosensory integration. As suggested by self-reports, these findings could reflect the ability of elite free divers to create a state of sensory dissociation when performing prolonged apnea.
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Metadaten
Titel
Mapping the functional brain state of a world champion freediver in static dry apnea
verfasst von
Jitka Annen
Rajanikant Panda
Charlotte Martial
Andrea Piarulli
Guillaume Nery
Leandro R. D. Sanz
Juan M. Valdivia-Valdivia
Didier Ledoux
Olivia Gosseries
Steven Laureys
Publikationsdatum
22.08.2021
Verlag
Springer Berlin Heidelberg
Erschienen in
Brain Structure and Function / Ausgabe 8/2021
Print ISSN: 1863-2653
Elektronische ISSN: 1863-2661
DOI
https://doi.org/10.1007/s00429-021-02361-1

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