Unilateral vestibular deafferentation impairs embodied spatial cognition
نویسندگان
چکیده
منابع مشابه
Head impulses after unilateral vestibular deafferentation validate Ewald's second law.
To determine the relative contributions of ampullofugal (AF) and ampullopetal (AP) stimulation of the horizontal semicircular canal (HSCC) to the horizontal vestibulo-ocular reflex (HVOR), 12 patients were studied 1 year after total unilateral vestibular deafferentation (UVD). Compensatory eye movement responses to impulses of horizontal head rotation were studied using magnetic search coils. T...
متن کاملSpatial memory and hippocampal volume in humans with unilateral vestibular deafferentation.
Patients with acquired chronic bilateral vestibular loss were recently found to have a significant impairment in spatial memory and navigation when tested with a virtual Morris water task. These deficits were associated with selective and bilateral atrophy of the hippocampus, which suggests that spatial memory and navigation also rely on vestibular input. In the present study 16 patients with u...
متن کاملVibration-induced ocular torsion and nystagmus after unilateral vestibular deafferentation.
Vibration is an excitatory stimulus for both vestibular and proprioceptive afferents. Vibration applied either to the skull or to the neck muscles of subjects after unilateral vestibular deafferentation induces nystagmus and a shift of the subjective visual horizontal. Previous studies have ascribed these effects to vibratory stimulation of neck muscle proprioceptors. Using scleral search coils...
متن کاملUnilateral Vestibular Loss Impairs External Space Representation
The vestibular system is responsible for a wide range of postural and oculomotor functions and maintains an internal, updated representation of the position and movement of the head in space. In this study, we assessed whether unilateral vestibular loss affects external space representation. Patients with Menière's disease and healthy participants were instructed to point to memorized targets i...
متن کاملEmbodied inference and spatial cognition
How much about our interactions with—and experience of—our world can be deduced from basic principles? This paper reviews recent attempts to understand the self-organised behaviour of embodied agents, like ourselves, as satisfying basic imperatives for sustained exchanges with the environment. In brief, one simple driving force appears to explain many aspects of perception, action and the perce...
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ژورنال
عنوان ژورنال: Journal of Neurology
سال: 2019
ISSN: 0340-5354,1432-1459
DOI: 10.1007/s00415-019-09433-7