On the role of vestibulo-ocular reflex plasticity in recovery after unilateral peripheral vestibular lesions

1985 ◽  
Vol 59 (2) ◽  
Author(s):  
C. Maioli ◽  
W. Precht
Keyword(s):  
Ocular Reflex ◽  
Vestibulo Ocular Reflex

scholarly journals Role of electronystagmography as a definitive tool in evaluation of vertigo: a clinical study

2021 ◽  
Vol 7 (6) ◽  
pp. 1026
Author(s):  
C. B. Nandyal ◽  
Ramchandra .
Keyword(s):  
Clinical Study ◽  
Screening Tool ◽  
Optimal Conditions ◽  
Special Significance ◽  
First Line ◽  
Ocular Reflex ◽  
Vestibulo Ocular Reflex ◽  
Benign Positional Paroxysmal Vertigo ◽  
The Brain

<p class="abstract"><strong>Background:</strong> Vertigo is one of the most distressing symptoms. It is difficult to identify, practically impossible to measure and not easy to treat. Electronystagmography (ENG) objectively records eye movements and thus tests the functional integrity of vestibulo-ocular reflex and its connections from inner ear to the brain. Hence, this present study was taken to evaluate the role of ENG in the diagnosis of vertigo, to know the peripheral, central and other causes of vertigo and to know the side of lesion. The aim of this study was to evaluate the role of ENG in the diagnosis of vertigo, to know the peripheral, central and other causes of vertigo and to know the side of lesion.</p><p class="abstract"><strong>Methods:</strong> This study included 60 patients who presented with primary complaints of vertigo or dizziness. Patients were subjected to ENG under optimal conditions and the results were obtained in the form of a graphical recordings after analysis of the ENG data.</p><p class="abstract"><strong>Results:</strong> Of the 60 patients subjected to ENG, a peripheral cause was seen in 33 patients. 21 patients were diagnosed with benign positional paroxysmal vertigo (BPPV), whereas 06 patients showed a central lesion of the vestibular system.</p><p class="abstract"><strong>Conclusions:</strong> ENG acts as a useful screening tool to differentiate between peripheral cause of vertigo and central cause of vertigo. It has special significance in localizing the side of the lesion. Hence, ENG has proven to be a useful first line investigation in the diagnosis of vertigo.</p>

scholarly journals Role of Cerebellum in Motion Perception and Vestibulo-ocular Reflex—Similarities and Disparities

2012 ◽  
Vol 12 (1) ◽  
pp. 97-107 ◽  
Author(s):  
Aasef G. Shaikh ◽  
Antonella Palla ◽  
Sarah Marti ◽  
Itsaso Olasagasti ◽  
Lance M. Optican ◽  
...  
Keyword(s):  
Motion Perception ◽  
Ocular Reflex ◽  
Vestibulo Ocular Reflex

Self-motion perception and vestibulo-ocular reflex during whole body yaw rotation in standing subjects: The role of head position and neck proprioception

2011 ◽  
Vol 30 (2) ◽  
pp. 314-332 ◽  
Author(s):  
Roberto Panichi ◽  
Fabio Massimo Botti ◽  
Aldo Ferraresi ◽  
Mario Faralli ◽  
Artemis Kyriakareli ◽  
...  
Keyword(s):  
Motion Perception ◽  
Head Position ◽  
Whole Body ◽  
Ocular Reflex ◽  
Neck Proprioception ◽  
Vestibulo Ocular Reflex ◽  
Self Motion

scholarly journals Gating of neural error signals during motor learning

eLife ◽  
2014 ◽  
Vol 3 ◽  
Author(s):  
Rhea R Kimpo ◽  
Jacob M Rinaldi ◽  
Christina K Kim ◽  
Hannah L Payne ◽  
Jennifer L Raymond
Keyword(s):  
Motor Learning ◽  
Climbing Fiber ◽  
Climbing Fibers ◽  
Motor Memory ◽  
Ocular Reflex ◽  
Learning Tasks ◽  
Performance Errors ◽  
Vestibulo Ocular Reflex

Cerebellar climbing fiber activity encodes performance errors during many motor learning tasks, but the role of these error signals in learning has been controversial. We compared two motor learning paradigms that elicited equally robust putative error signals in the same climbing fibers: learned increases and decreases in the gain of the vestibulo-ocular reflex (VOR). During VOR-increase training, climbing fiber activity on one trial predicted changes in cerebellar output on the next trial, and optogenetic activation of climbing fibers to mimic their encoding of performance errors was sufficient to implant a motor memory. In contrast, during VOR-decrease training, there was no trial-by-trial correlation between climbing fiber activity and changes in cerebellar output, and climbing fiber activation did not induce VOR-decrease learning. Our data suggest that the ability of climbing fibers to induce plasticity can be dynamically gated in vivo, even under conditions where climbing fibers are robustly activated by performance errors.

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