Medizinische Universität Graz - Research portal
Selected Publication:
Rezk, Y.
Vestibulo-ocular Responses to Off-Vertical Axis rotation during normal and altered gravity conditions – Review and Feasibility Study
Humanmedizin; [ Diplomarbeit ] ; 2015. pp. 121
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- Authors Med Uni Graz:
- Advisor:
- Gallasch Eugen
- Altmetrics:
- Abstract:
- The vestibular system consists of two components that cooperate to indicate our orientation and movement in space: the otoliths and the semicircular canals. While the canals respond to rotational movements the otoliths, in contrast, are responsible for the determination of our orientation in gravity. The otolith signals interact with the signals from the canals to generate combined eye movements. Studies on three dimensional eye movements during off-vertical axis rotation (OVAR), combined with model-based analysis have been done in order to characterize these canal-otolith interactions. The goal of this thesis is to review these studies with respect to hypo- and hyper-gravity. Based on the mentioned the present thesis consists of three main parts: The first part, gives a correlated physiology and clinical overview of the vestibulo-ocular system. The second part focuses on OVAR studies done in the past, which forms a transition to the third part of this thesis, a feasibility study for a parabolic flight campaign of the European Space Agency.