Results 211 to 220 of about 13,680 (242)
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Signal processing in the vestibulo-ocular reflex
2022In this chapter, Robinson develops models to account for the neural control of the vestibulo-ocular reflex in response to horizontal and vertical head rotations. By combining knowledge of the discharge properties of the several subpopulations of neurons that contribute to vestibular eye movements with their known anatomical connections, these models ...
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Fluctuating Vestibulo-Ocular Reflex in Ménière's Disease
Otology & Neurotology, 2017Objectives: To describe the fluctuating high velocity vestibular ocular-reflex (VOR) during the Ménière's attacks and correlate those features with pathophysiology. Patients: A patient with unilateral Ménière's disease (MD) was evaluated closely during and after acute vertigo ...
Dario A, Yacovino +2 more
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The Vertical Vestibulo-Ocular Reflex
1982If causal and teleological reasoning were clearly diametrically opposed attitudes, then tackling the central organization of vertical eye movements would indeed be a formidable task. This opening, and light, assertion is partially explained by the subsequent lengthy introduction to some of the problems posed by the descriptive, but unfortunately ...
R. Baker, W. Graf, R. F. Spencer
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Somatosensory input influences the vestibulo-ocular reflex
Neuroscience Letters, 2009To evaluate the influence of somatosensory input on the vestibulo-ocular reflex (VOR), we used sinusoidal rotation tests in 19 young, healthy volunteers. For the control condition, subjects were sinusoidally rotated in complete darkness and with eyes opened at a frequency of 0.2 Hz with a maximum angular velocity of 30 degrees /s for 30s, and at ...
Akemi, Sugita-Kitajima, Izumi, Koizuka
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Gravity and the vertical vestibulo-ocular reflex
Experimental Brain Research, 1991We studied the vertical vestibulo-ocular reflex (VOR) and vertical visual-vestibular interaction induced by voluntary pitch in the upright and onside positions in eight normal human subjects. Subjects were trained to produce sinusoidal (0.4 to 1.6 Hz) pitch head movements guided by a frequency modulated sound signal.
R W, Baloh, J, Demer
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Vestnik otorinolaringologii, 2019
The aim of this study is to evaluate clinical symptoms and recovery of vestibule-ocular reflex (VOR) in patients with vestibular neuronitis (VN) in dependence on severity of VOR damage according to video head impulse test (vHIT).45 patients with VN and superior or both superior and inferior vestibular nerves involvement were recruited and horizontal ...
V T, Pal'chun +3 more
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The aim of this study is to evaluate clinical symptoms and recovery of vestibule-ocular reflex (VOR) in patients with vestibular neuronitis (VN) in dependence on severity of VOR damage according to video head impulse test (vHIT).45 patients with VN and superior or both superior and inferior vestibular nerves involvement were recruited and horizontal ...
V T, Pal'chun +3 more
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Vestibulo-ocular reflex and visual vestibulo-ocular reflex during sinusoidal rotation in children.
Acta oto-laryngologica. Supplementum, 1997To clarify the relationship between vestibular and visual (optokinetic) stimuli in normal children, we investigated the vestibulo-ocular reflex (VOR) and visual VOR (VVOR). The subjects were 20 healthy children aged 3-6 years and 24 healthy adults aged 21-29 years.
M, Sakaguchi +6 more
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Vestibulo-ocular reflex pathways in internuclear ophthalmoplegia
Annals of Neurology, 1999We measured the vestibulo-ocular reflex (VOR) during head impulses in a patient with right-sided internuclear ophthalmoplegia. Head impulses are rapid, passive, high-acceleration, low-amplitude head rotations in the direction of a particular semicircular canal (SCC). Adduction of the right eye was abnormally slow during right lateral SCC head impulses.
P D, Cremer +3 more
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Basic framework of the vestibulo-ocular reflex
2022Direct and indirect pathways mediating the vestibulo-ocular reflexes, considering contributions made by the vestibular commissure, cerebellum, and vestibular efferent neurons are reviewed. This background leads to a detailed treatment of three-dimensional aspects of the vestibulo-ocular reflex, comparing the planes of the labyrinthine semicircular ...
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"Velocity leakage" in the pigeon vestibulo-ocular reflex
Biological Cybernetics, 1994The transfer characteristics of the vestibulo-ocular reflex (VOR), and of the semicircular canal primary afferents (SCPAs) that drive it, have been studied in several species. In monkeys and cats, the dominant time constant describing horizontal VOR dynamics (tau hv) is longer than that (tau c) of horizontal SCPAs. This lengthening of the time constant
Anastasio, T. J., Correia, M. J.
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