4 edition of A model for the translational vestibulo-ocular reflex found in the catalog.
A model for the translational vestibulo-ocular reflex
by National Library of Canada = Bibliothèque nationale du Canada in Ottawa
Written in English
|Series||Canadian theses = Thèses canadiennes|
|The Physical Object|
HYPOTHESIS: Vestibulo-ocular reflex (VOR) response measures during convergence, which are clinically important to measure peripheral vestibular organ function during rotational and translational rapid head movements, can be implemented using existing clinically available monocular video-oculography (VOG) : William V. C. Figtree, Michael C. Schubert, Americo A. Migliaccio. A Cerebellar Spiking Neural Model for Phase Reversal of Vestibulo-ocular Reflex Abstract: Cerebellum possesses very rich motor control and learning capability which is critical for animals. In this study, we proposed a spiking neural network model of cerebellum for gain and phase adaptation in vestibulo-ocular reflex (VOR).Author: Zhanhong Zhou, Xiaolong Zhai, Chung Tin.
This chapter reviews properties and neural substrate of vestibular and optokinetic eye movements. Geometric aspects of head rotations and translations (linear movements) are related to properties of rotational and translational vestibulo-ocular reflexes. The motion sensors of the vestibular labyrinth -the semicircular canals and otolith organs - are described. Vestibulo-ocular reflexes (VORs) rely on neuronal computations that transform vestibular sensory signals into spatio-temporally appropriate extraocular motor commands. The motoneuronal discharge for contractions of the superior oblique eye muscle during linear translation derives from a utricular epithelial sector that is spatially aligned with the pulling direction of this by: 2.
Relationship of the Model to Central Vestibular Neurons. The Raphan model views the VOR and visual–vestibular interaction as having direct and indirect pathways (Figure 1).Velocity storage is part of the indirect pathway and can be represented as a three-dimensional integrator, characterized by a system matrix ().In accordance with this model, primary Cited by: Vestibulo ocular reflex, is a reflex where activation of vestibular system causes eye movement. Removing all sorts of confusion about VOR, Danish Abbasi explains it with proper examples and.
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A MODEL FOR THE TRANSLATIONAL VEsTIBUL0-OCULAR REFLEX W~sam Musallam Master of Science Department of Physiology University of Toronto The vestibular system is the system of baiance. The vestibulo-odar reflex (VOR) moves the eyes in response to head movements by uMg iaformaàon from the angular motion detectors.
The function of the translational vestibuloocular reflex (tVOR) and the angular vestibuloocular reflex (aVOR) is to stabilize images on the retina during translational and rotational motion, respec.
Model for the Translational Vestibuloocular Reﬂex (VOR) WISSAM S. MUSALLAM 1 AND R. TOMLINSON 1,2 Departments of 1 Physiology and 2 Otolaryngology, University of Toronto, Toronto, Ontario M5S 1A8, CanadaCited by: The translational vestibuloocular reflex (tVOR) stabilizes gaze in response to translational movements.
This is a complicated task because the peripheral otolith organs respond identically to tilt and to linear translation, whereas the ocular response to these stimuli differ; tilting of the head (sensing gravity) elicits torsional eye movements, whereas translations Cited by: The reflex is mediated by the otoliths and The translational or linear vestibulo-ocular reflex (TVOR, LVOR) is the compensatory eye movement generated in response to a linear displacement of head.
Translational Vestibulo-Ocular Reflex | SpringerLink. This paper presents a bilateral model for the horizontal angular vestibulo-ocular reflex (AVOR) in the dark based on realistic physiological mechanisms.
It is shown that by assigning proper non-linear neural computations at the premotor level, the model is capable of replicating target-distance dependent VOR responses that are in agreement with geometrical by: 3.
The Human Vertical Translational Vestibulo-ocular Reflex Article in Annals of the New York Academy of Sciences (1) June with 39 Reads How we measure 'reads'. The vestibulo-ocular reflex (VOR) produces compensatory eye rotations in response to accelerations of the head.
Linear head accelerations, including gravity, are sensed by the otolith organs (the saccule and the utricle) and their stimulation produces compensatory responses to stabilize the position of the body and the : Stefano Ramat, Benjamin T. Crane. VOR which can be described by the kinematics of the reflex, i.e.
eye position, eye vergence and head translation. 2 The Vestibulo-Ocular Reflex: Kinematic Model Definition of Vectors Coordinate System Eye position Vector Head Top View Target Object Gaze Vector Gaze Angle Interocular Distance Rotation Axis Semicircular Canals and Otoliths.
THE VESTIBULO-OCULAR REFLEX. Michael G. Paulin, Mark E. Nelson and James M. Bower Division of Biology California Institute of Technology Pasadena, CA ABSTRACT We present a new hypothesis that the cerebellum plays a key role in ac tively controlling the acquisition of sensory infonnation by the nervous system.
The Vestibulo-Ocular Reflex and Vertigo by James A. Sharpe,available at Book Depository with free delivery worldwide. The vestibulo-ocular reflex (VOR) is a short latency reflex system, which ideally generates a rotation of the eye with an amplitude equal and opposite to the direction of a head movement as a result of vestibular stimulation.
The Vestibulo-Ocular Reflex: Kinematic Model. Figure: Diagram showing the definition of the vectors used in the equation of the kinematic model of the vestibulo-ocular reflex.
The ideal VOR response is a compensatory eye movement which keeps the image fixed on the retina for any head rotations and translations. Rapid Motor Learning in the Translational Vestibulo-Ocular Reflex Wu Zhou,1,2,3 Patrick Weldon,2 Bingfeng Tang,2 and W.
King2,3,4 Departments of 1Otolaryngology and Communicative Sciences, 2Neurology, and 3Anatomy, University of Mississippi Medical Center, Jackson, Mississippiand 4Department of Otolaryngology, University of Michigan, Ann Cited by: Manual whole-body and head-on-body rotational testing of the vestibuloocular reflex (VOR) is comparable to conventional rotary chair methods with and without visual fixation from to 1.
rately, the vestibulo-ocular reflex response must be modulated by the context in which the response takes place. The context studied in this paper includes eye position, eye vergence and head translation.
We first describe a kinematic model of the vestibulo-ocular reflex response given rotational and translational information of the head motion. Alterations in the vestibulo‐ocular reflex (VOR) evoked by lateral, whole‐body translations have also been observed.
In an approach directed at the development of a bedside test of otolith function, we have recorded (scleral search coil) the VOR evoked by brief, high‐acceleration lateral translations (heaves).Cited by: Abstract NONLNLAEUTY AND SIGW-Ai PROCESSING IN VESTIBULO-ONLY CELLS AND THE TRkUSLATIONAL VESTIBULO-0CUL.M REFLEX BY Sam Musallam Doctor of Philosophy Department of Physiology University of Toronto, 1 Recordings were obtrtined tiom 1 IO randomly selected vestibulo-only (VO) neurons in the vestibutar nucleus oftwo rhesus : Sam Musallam.
Vestibulo-Ocular Reflex Model (VOR), Optokinetic Reflex (VOR), Mental Workload, Drive Distraction 1. Introduction The Vestibulo-Ocular Reflex Model and Its Application The vestibular system, which is a sensory mechanism in the inner ear, provides the principal contribution to the sense of balance and spatial orientation.
TheFile Size: 3MB. The otolith-driven translational vestibulo-ocular reflex (tVOR) generates compensatory eye movements to linear head accelerations.
Studies in humans indicate that the cerebellum plays a critical role in the neural control of the tVOR, but little is known about mechanisms of this control or the functions of specific cerebellar by:. CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Background: The otolith-driven translational vestibulo-ocular reflex (tVOR) generates compensatory eye movements to linear head accelerations.
Studies in humans indicate that the cerebellum plays a critical role in the neural control of the tVOR, but little is known about mechanisms of this.
Motor learning was induced in the translational vestibulo-ocular reflex (TVOR) when monkeys were repeatedly subjected to a brief ( sec) head translation while they tried to maintain binocular fixation on a visual target for juice rewards. If the target was world-fixed, the initial eye speed of the TVOR gradually increased; if the target was head-fixed, the initial eye Cited by: ().
Rapid motor learning in the translational vestibulo-ocular reflex. (). Resolution of sensory ambiguities for gaze stabilization requires a second neural integrator.
(). Rotational and translational optokinetic nystagmus have different kinematics. (). Short-latency primate vestibuloocular responses during translation. ().