Dynamic characteristics of the visuo-, vestibulo- ocular system
نویسندگان
چکیده
منابع مشابه
The dynamic characteristics of the mouse horizontal vestibulo-ocular and optokinetic response.
In the present study the optokinetic reflex, vestibulo-ocular reflex and their interaction were investigated in the mouse, using a modified subconjunctival search coil technique. Gain of the ocular response to sinusoidal optokinetic stimulation was relatively constant for peak velocities lower than 8 degrees /s, ranging from 0.7 to 0.8. Gain decreased proportionally to velocity for faster stimu...
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We present an eye/head gaze controller based on recent findings in biological gaze control. Despite the absence of an explicit VOR mechanism the model is able to (i) produce classical VOR responses and (ii) reject head perturbations during the saccadic portion of a gaze shift executed to a remembered target -what is usually attributed to a separate vestibular mechanism. We argue that distinguis...
متن کاملDistributed Neural Information Processing in the Vestibulo-Ocular System
A new distributed neural information-processing model is proposed to explain the response characteristics 457 of the vestibulo-ocular system and to reflect more accurately the latest anatomical and neurophysiological data on the vestibular afferent fibers and vestibular nuclei. In this model, head motion is sensed topographically by hair cells in the semicircular canals. Hair cell signals are t...
متن کاملControl of ocular torsion in the rotational vestibulo-ocular reflexes.
Visual stabilization of the retina during rotational head movements requires that in far vision the eyes rotate about the same axis as the head but in opposite direction with a gain close to unity (optimal strategy). To achieve this goal the vestibulo-oculomotor system must be able to independently control all three rotational degrees of freedom of the eye. Studies of the human rotational vesti...
متن کاملThe vestibulo-ocular reflex of hypergravity rats.
The vertebrate vestibular system detects linear (otolith organs) and angular (semicircular canals) acceleration. The function of the otolith system is twofold, 1: perception of linear acceleration of the head, and 2: assessment of the spatial orientation of the head relative to the vector of gravity. Because of the latter function, a change of gravity will affect the vestibular input which, in ...
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ژورنال
عنوان ژورنال: Equilibrium Research
سال: 1988
ISSN: 0385-5716,1882-577X
DOI: 10.3757/jser.47.suppl-3_149