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Showing 1 to 14 of 14 for “"vestibulo-ocular reflex"”.
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Effects of Neck Muscle Fatigue on the Vestibulo-Ocular Reflex
… and interpreted. This results in the output of reflexes (vestibulo-ocular reflex [VOR] and vestibulospinal reflex [VSR]). The VOR and the VSR work together with other motor systems to control gaze stability and control whole body equilibrium. Impairment in any of these sensory systems can result …
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Understanding the Mechanisms of Motor Learning in the Vestibulo-ocular Reflex
The vestibulo-ocular reflex (VOR) is a simple reflex that stabilizes gaze by moving the eyes in the opposite direction to the head. The gain of the VOR (ratio of head to eye velocity) can be increased or decreased during motor learning. It is thought that the memory for learned changes in the VOR …
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Visual Contributions to the Vestibulo-Ocular Reflex during Balance Recovery Tasks
<p>Introduction: The Vestibulo-ocular reflex (VOR) is quantified by computing the ratio of head angular velocity and eye angular velocity (VOR Gain). This measure only includes head angular movements; linear translations are not accounted for. These investigations postulate an alternative method of …
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Incremental vestibulo-ocular reflex (VOR) adaptation In subjects with peripheral vestibular hypofunction
The vestibulo-ocular reflex (VOR) is the main retinal-image stabilizing mechanism during rapid (i.e. high-frequency content) head movements. When the peripheral vestibular system is impaired, i.e. vestibular hypofunction, through disease, trauma or the aging process, the VOR response is reduced …
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Effect of Sound Source Location and Spatial Hearing on the Vestibulo-Ocular Reflex (VOR)
<p>Accurate measurement of the vestibulo-ocular reflex (VOR) is imperative in differential diagnosis of vestibular disorders and balance function. However, the assessment protocol faces a number of limitations, including the need to control for extra- vestibular sensory factors such as hearing. …
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Effects of weightlessness on the vestibulo-ocular reflex in the crew of Spacelab 1
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1986.
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Does vergence influence the vestibulo-ocular reflex in human subjects rotating in the dark?
… to focus on a visual target while measuring the vestibulo-ocular reflex (VOR) in one eye. These experiments showed conclusively that the VOR is influenced by target distance. We, on the other hand, were interested in investigating the VOR of subjects accelerated in complete darkness. …
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Artificial gravity : adaptation of the vestibulo-ocular reflex to head movements during short-radius centrifugation
… during centrifugation induce inappropriate vestibulo-ocular reflexes, debilitating motion sickness symptoms, and illusory tilt sensations due to conflicting visual and vestibular signals. Practical use of an intermittent short-radius centrifuge as a countermeasure requires that crew members …
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Habituation of the Goldfish Vestibulo-Ocular Reflex Is Frequency Specific and Nonlinear: An Experimental and Modeling Study
The vestibular-ocular reflex (VOR) is a plastic system found in vertebrates which produces eye rotations that compensate for head rotations. Simultaneous motion and vision are thus possible since the reflex keeps vision from becoming bluffed during movement. Low-frequency rotations, whether actual, …
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Changes in the horizontal angular vestibulo-ocular reflex of SLS-2 space shuttle astronauts due to weightlessness
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1995.
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Eye movement studies with a vestibular prosthesis/
… Prosthesis effectiveness is assessed using the vestibulo-ocular reflex (VOR), since the VOR helps stabilize gaze in healthy individuals by evoking eye movements that compensate for head movements. In this thesis, the prosthesis was used to probe the high frequency VOR in squirrel monkeys and …
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Vestibular functioning and pathology in adults with HIV/AIDS : a comparative study
… to determine if HIV/AIDS influence the vestibulocollic reflex (VCR) pathways. For the first study a systematic literature review related to vestibular findings in individuals with HIV infection and AIDS was conducted. A varied search strategy was used across several electronic databases …
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A human analog for benchmarking vestibular tests in a roto-tilt chair
… model that will be used to simulate the vestibulo-ocular reflex (VOR) about pitch, roll, and yaw axes. A sensor array consisting of accelerometers and gyroscopes was built to simulate vestibular function with the sensors positioned in a manner to replicate anatomic placement of the …
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Computerized rotational head impulse test : age-dependent normative data
The objective of this study was to determine the normative VOR gain output values of the crHIT with stationary visual targets (earthbound) in healthy participants in each decade age band of life; 10-19, 20-29, 30-39, 40-49, 50-59, 60-69, and 70+ years. Seventy-seven community-dwelling participants …