Article (Scientific journals)
Vestibular Morphological Asymmetry Associated With Motion Sickness Susceptibility.
Harada, Takumi; Sugawara, Tomoko; Ito, Taeko et al.
2021In Frontiers in Neuroscience, 15, p. 763040
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Keywords :
MRI; asymmetry; inner ear; morphology; motion sickness; resting state; vestibular
Abstract :
[en] Sensory conflicts leading to motion sickness can occur not only between but also within sensory modalities. The vestibular organs are located in both left and right inner ears, and their misalignment can be a source of self-motion related sensory conflicts. In the current study, using inner ear magnetic resonance imaging, we examined whether morphological asymmetry of the bilateral vestibular organs was associated with motion sickness susceptibility. The results showed a larger position asymmetry of bilateral vestibular organs in individuals with high rather than low susceptibility. In addition, vestibular position asymmetry was associated with reciprocal interaction (negative resting state functional connectivity) between vestibular and visuocortical regions in lowly, but not highly, susceptible individuals. In conclusion, these findings suggest that vestibular morphological asymmetry can be a source of sensory conflicts in individuals with dysfunctional reciprocal visuo-vestibular interactions, a putative neural mechanism for resolving sensory conflicts.
Disciplines :
Neurosciences & behavior
Author, co-author :
Harada, Takumi
Sugawara, Tomoko
Ito, Taeko
Wada, Yoshiro
Fukunaga, Masaki
Sadato, Norihiro
Larroque, Stephen  ;  Université de Liège - ULiège > GIGA Consciousness - Coma Science Group
Demertzi, Athina  ;  Université de Liège - ULiège > GIGA Consciousness - Physiology of Cognition
Laureys, Steven  ;  Université de Liège - ULiège > GIGA Consciousness - Coma Science Group
Sakai, Hiroyuki
Language :
English
Title :
Vestibular Morphological Asymmetry Associated With Motion Sickness Susceptibility.
Publication date :
2021
Journal title :
Frontiers in Neuroscience
ISSN :
1662-4548
eISSN :
1662-453X
Publisher :
Frontiers Media S.A., Switzerland
Volume :
15
Pages :
763040
Peer reviewed :
Peer Reviewed verified by ORBi
Commentary :
Copyright © 2021 Harada, Sugawara, Ito, Wada, Fukunaga, Sadato, Larroque, Demertzi, Laureys and Sakai.
Available on ORBi :
since 03 February 2022

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