Article (Scientific journals)
Mapping the functional brain state of a world champion freediver in static dry apnea
Annen, Jitka; Panda, Rajanikant; Martial, Charlotte et al.
2021In Brain Structure and Function, 226, p. 2675–2688
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Keywords :
Voluntary apnea; Meditation; Mind–body dissociation
Abstract :
[en] 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.
Research center :
Coma Science Group, GIGA-Consciousness; CHU de Liège-Centre du Cerveau²
Disciplines :
Neurosciences & behavior
Author, co-author :
Annen, Jitka   ;  Université de Liège - ULiège > GIGA Consciousness - Coma Science Group ; CHU Liège - Central University Hospital of Liege > Centre du Cerveau²
Panda, Rajanikant   ;  Université de Liège - ULiège > GIGA Consciousness - Coma Science Group
Martial, Charlotte  ;  Université de Liège - ULiège > GIGA Consciousness - Coma Science Group
Piarulli, Andrea  ;  Université de Liège - ULiège > GIGA : Coma Group
Nery, G
Sanz, Leandro  ;  Université de Liège - ULiège > GIGA Consciousness - Coma Science Group
Valdivia-Valdivia, J
LEDOUX, Didier  ;  Centre Hospitalier Universitaire de Liège - CHU > Autres Services Médicaux > Service des soins intensifs
Gosseries, Olivia  ;  Université de Liège - ULiège > GIGA Consciousness - Coma Science Group
Laureys, Steven  ;  Université de Liège - ULiège > GIGA Consciousness - Coma Science Group
 These authors have contributed equally to this work.
Language :
English
Title :
Mapping the functional brain state of a world champion freediver in static dry apnea
Publication date :
2021
Journal title :
Brain Structure and Function
ISSN :
1863-2653
eISSN :
1863-2661
Publisher :
Springer, Berlin, Germany
Volume :
226
Pages :
2675–2688
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 10 February 2021

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