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Unilateral vestibular deafferentation impairs embodied spatial cognition
Diane Deroualle1, Liliane Borel1, Brandon Tanguy1
1Laboratoire de Neurosciences Sensorielles et Cognitives-UMR 7260, Aix Marseille Univ, CNRS, FR3C - Case B, 3 Place Victor Hugo, 13331, Marseille Cedex 03, France.
Journal of Neurology
|June 24, 2019
Summary
Unilateral vestibular loss impairs third-person perspective-taking, a cognitive function linked to social cognition. This deficit, particularly evident after left vestibular neurectomy, highlights the vestibular system's role in visuo-spatial and social processing.
Area of Science:
- Neuroscience
- Vestibular Physiology
- Cognitive Science
Background:
- Cognitive complaints are frequent in patients with peripheral vestibular disorders.
- Understanding vestibular influence on cognition requires identifying affected cognitive domains.
Purpose of the Study:
- To compare the effects of left and right vestibular neurectomy on third-person perspective-taking (3PP) and 3D object mental rotation.
- To investigate how unilateral vestibular loss impacts visuo-spatial tasks involving own-body versus object-based mental imagery.
Main Methods:
- Patients 1 week post-unilateral vestibular neurectomy and healthy controls performed a virtual ball-tossing game.
- Tasks included first-person perspective (1PP), third-person perspective (3PP), and 3D object mental rotation.
Main Results:
- Patients showed increased response times for 3PP tasks compared to controls, but not for 1PP or object rotation tasks.
- Only patients with left vestibular neurectomy exhibited impaired 3PP abilities.
Conclusions:
- Unilateral vestibular loss primarily affects own-body mental transformations, crucial for 3PP.
- Left vestibular loss specifically impairs third-person perspective-taking, linking vestibular function to social cognition.
Keywords:
3D object mental rotationMental imageryPerspective takingUnilateral vestibular lossVestibular systemMore Related Videos
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