Seeing Gravity: Gait Adaptations to Visual and Physical Inclines - A Virtual Reality Study.
gravity
locomotion
multisensory integration
perception and action
sensorimotor integration
virtual reality
vision
Journal
Frontiers in neuroscience
ISSN: 1662-4548
Titre abrégé: Front Neurosci
Pays: Switzerland
ID NLM: 101478481
Informations de publication
Date de publication:
2019
2019
Historique:
received:
19
04
2019
accepted:
22
11
2019
entrez:
11
2
2020
pubmed:
11
2
2020
medline:
11
2
2020
Statut:
epublish
Résumé
Using advanced virtual reality technology, we demonstrate that exposure to virtual inclinations visually simulating inclined walking induces gait modulations in a manner consistent with expected gravitational forces (i.e., acting upon a free body), suggesting vision-based perception of gravity. The force of gravity critically impacts the regulation of our movements. However, how humans perceive and incorporate gravity into locomotion is not well understood. In this study, we introduce a novel paradigm for exposing humans to incongruent sensory information under conditions constrained by distinct gravitational effects, facilitating analysis of the consistency of human locomotion with expected gravitational forces. Young healthy adults walked under conditions of actual physical inclinations as well as virtual inclinations. We identify and describe 'braking' and 'exertion' effects - locomotor adaptations accommodating gravito-inertial forces associated with physical inclines. We show that purely visual cues (from virtual inclinations) induce consistent locomotor adaptations to counter expected gravity-based changes, consistent with
Identifiants
pubmed: 32038123
doi: 10.3389/fnins.2019.01308
pmc: PMC6992711
doi:
Types de publication
Journal Article
Langues
eng
Pagination
1308Informations de copyright
Copyright © 2020 Cano Porras, Zeilig, Doniger, Bahat, Inzelberg and Plotnik.
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