Head-free gaze control in humans with chronic loss of vestibular function

Nadine Lehnen, Ulrich Büttner, Stefan Glasauer

Publikation: Beitrag in Buch/Bericht/KonferenzbandKonferenzbeitragBegutachtung

8 Zitate (Scopus)

Abstract

Healthy subjects use the vestibulo-ocular reflex (VOR) to stabilize gaze. Labyrinthine-defective humans without VOR still are, to some extent, able to maintain gaze stability during active eye-head movements. Here it is investigated whether this stabilization is due to anticipatory mechanisms or proprioceptive feedback. The head inertia was increased in humans who have undergone bilateral vestibulectomy (vestibular subjects) and in healthy controls during large gaze shifts. This leads to head oscillations in both groups. Whereas controls compensate for head oscillations and maintain gaze stability, vestibular subjects display gaze oscillations along with head oscillations. This indicates that vestibular subjects mainly use learned, anticipatory mechanisms, and not proprioception, to stabilize gaze.

OriginalspracheEnglisch
TitelBasic and Clinical Aspects of Vertigo and Dizziness
Herausgeber (Verlag)Blackwell Publishing Inc.
Seiten409-412
Seitenumfang4
ISBN (Print)9781573317177
DOIs
PublikationsstatusVeröffentlicht - Mai 2009
Extern publiziertJa

Publikationsreihe

NameAnnals of the New York Academy of Sciences
Band1164
ISSN (Print)0077-8923
ISSN (elektronisch)1749-6632

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