Results 81 to 90 of about 498 (134)
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Plasticity and repair of the vestibulo-ocular reflex
2022It is self-evident, once one thinks about it, that the vestibulo-ocular reflex must have caretaker systems that keep it operating correctly over the span of a lifetime. When a movement is not correct (e.g., in position, speed, direction) it is said to be dysmetric. For the vestibulo-ocular reflex (VOR), if eye velocity is not equal and opposite to head
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2007
The vestibulo-ocular reflex (VOR) ensures best vision during head motion by moving the eyes contrary to the head to stabilize the line of sight in space. The VOR has three main components: the peripheral sensory apparatus (a set of motion sensors: the semicircular canals, SCCs, and the otolith organs), a central processing mechanism, and the motor ...
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The vestibulo-ocular reflex (VOR) ensures best vision during head motion by moving the eyes contrary to the head to stabilize the line of sight in space. The VOR has three main components: the peripheral sensory apparatus (a set of motion sensors: the semicircular canals, SCCs, and the otolith organs), a central processing mechanism, and the motor ...
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A vestibulo-ocular reflex with no head movement
Biological Cybernetics, 1986Eye movements were produced in an elasmobranch preparation by electrical stimulation of the horizontal canal ampullary nerves. A pseudorandom binary sequence of stimulus pulse trains was delivered bilaterally. Eye position during this stimulus was cross-correlated with the stimulus pattern to obtain a linear model of the response.
M G, Paulin, J C, Montgomery
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Organization and Control of the Vestibulo-Ocular Reflex
1979Publisher Summary Two generations of vestibulo-ocular reflex (VOR) models can be distinguished. This chapter describes a first generation model of VOR. The first generation models describe the VOR as an isolated system with uncontrollable characteristics.
R, Schmid, M, Jeannerod
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Asymmetry of Vestibulo‐Ocular Reflex in the Cat
Otolaryngology–Head and Neck Surgery, 1985Vertical eye movements were recorded in alert, restrained cats that were subjected to whole‐body rotations which stimulated the vertical semicircular canals. The results showed a significant asymmetry between the upward and downward slow‐phase eye movements, which suggests differences in the CNS processing of vertical canal inputs vis‐à‐vis the ...
J H, Anderson, S L, Liston
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The functional operation of the vestibulo-ocular reflex
2022The biophysical properties of the labyrinthine semicircular canals, and the electrophysiological properties of peripheral vestibular afferent neurons over a range of stimulus frequencies, are reviewed. Resting discharge activity and adaptive properties of vestibular neurons are discussed.
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Effects of halothane on the vestibulo-ocular reflex
American Journal of Otolaryngology, 1980The differential effect of halothane on the characteristics of fast and slow components of vestibular nystagmus was investigated in rabbits. Eye movements were monitored using the "magnetic search coil" method and evaluated with the aid of a laboratory minicomputer. Low concentrations of halothane act preferentially on the fast component.
J W, Birns, V, Honrubia
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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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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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"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
Thomas J. Anastasio, M. J. Correia
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