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Questions and Answers
What is the purpose of the Vestibulo-Ocular Reflex (VoR) as described in the text?
What is the purpose of the Vestibulo-Ocular Reflex (VoR) as described in the text?
- To induce motion sickness
- To maintain visual stability during head movements (correct)
- To increase imbalance
- To cause vertigo
At what speed does the head movement need to be for the Vestibulo-Ocular Reflex (VoR) to be effective?
At what speed does the head movement need to be for the Vestibulo-Ocular Reflex (VoR) to be effective?
- 85-120 degrees per second (correct)
- 150-180 degrees per second
- 30-50 degrees per second
- 200-250 degrees per second
What physiological effect can occur if an impaired individual experiences a loss of gain in the Vestibulo-Ocular Reflex (VoR)?
What physiological effect can occur if an impaired individual experiences a loss of gain in the Vestibulo-Ocular Reflex (VoR)?
- Error signal leading to vertigo (correct)
- Improved gaze fixation
- Increased eye movement in the same direction as head movement
- Reduced vertigo symptoms
What does a VOR gain ratio of 1 indicate in healthy individuals?
What does a VOR gain ratio of 1 indicate in healthy individuals?
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How does the intact cerebellum help in correcting errors in the Vestibulo-Ocular Reflex (VoR) system?
How does the intact cerebellum help in correcting errors in the Vestibulo-Ocular Reflex (VoR) system?
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