Functional Organization of Vestibulo-Ocular Responses in Abducens Motoneurons
نویسندگان
چکیده
منابع مشابه
Interobserver agreement in assessment of vestibulo-ocular responses.
In 30 comatose head injured patients vestibulo-ocular responses were elicited by caloric stimulation. Inter- and intra-observer agreement of these responses was studied. The responses were shown in the form of a film to ten doctors who classified them into four categories: no reaction, tonic reaction, paradoxical nystagmus and nystagmus. The level of the coefficient Kappa (a chance-corrected me...
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The effect of sleep deprivation on the vestibular function is largely unknown. Some studies have found that postural balance or vestibular reflexes are decreased in sleep-deprived subjects while others found no change. The aim of this study was to evaluate the effect of sleep deprivation on the vestibulo-ocular reflex (VOR). Horizontal eye movements were recorded in healthy subjects during eart...
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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 کاملBehavior of accessory abducens and abducens motoneurons during eye retraction and rotation in the alert cat.
1. The activity of both accessory abducens (Acc Abd) and abducens (Abd) motoneurons (Mns) was recorded in the alert cat during eye retraction and rotational eye movements. Cats were fitted with two scleral coils, one measured rotational eye movements directly and the other retraction by distinguishing the translational component. 2. Acc Abd and Abd Mns were identified following antidromic activ...
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...
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ژورنال
عنوان ژورنال: The Journal of Neuroscience
سال: 2017
ISSN: 0270-6474,1529-2401
DOI: 10.1523/jneurosci.2626-16.2017