Postural motion perception during vestibular stimulation depends on the motion perception threshold in persistent postural-perceptual dizziness
Christoph Helmchen,
Smila-Karlotta Blüm,
Renana Storm
et al.
Abstract:Patients with persistent postural-perceptual dizziness (PPPD) perceive postural instability larger than the observed sway. It is unknown whether the concept of postural misperception prevails during vestibular stimulation and whether it may account for the unsteadiness patients complain during body movements. We tested the hypothesis of an abnormal sensory-perceptual scaling mechanism in PPPD by recording objective, perceived, and the reproduced postural sway under various standing conditions, modulating visua… Show more
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