Optokinetic nystagmus and the vestibular nuclei

The role of the vestibular nuclei in the mechanism of optokinetic nystagmus has been investigated in the awake, uncurarized guinea pig. In a first group of animals the effects of acute removal of the entire vestibular nuclear complex on optokinetic nystagmus has been investigated, while in a second...

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Bibliographic Details
Published inExperimental neurology Vol. 42; no. 1; pp. 158 - 168
Main Authors Azzena, G.B., Azzena, M.T., Marini, R.
Format Journal Article
LanguageEnglish
Published United States Elsevier Inc 1974
Subjects
Animals
Cerebral Cortex - physiology
Electric Stimulation
Electrophysiology
Eye Movements
Guinea Pigs
Neurons - physiology
Semicircular Canals - innervation
Semicircular Canals - physiology
Space life sciences
Vestibular Nuclei - physiology
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Summary:The role of the vestibular nuclei in the mechanism of optokinetic nystagmus has been investigated in the awake, uncurarized guinea pig. In a first group of animals the effects of acute removal of the entire vestibular nuclear complex on optokinetic nystagmus has been investigated, while in a second group of guinea pigs the unitary discharge of the lateral vestibular nucleus has been recorded during optokinetic nystagmus. After acute destruction of the entire vestibular nuclear complex optokinetic eye nystagmus could not be elicited. Furthermore, units were found in the lateral vestibular nucleus, which typically fired during optokinetic nystagmus. The conclusion is reached that the vestibular nuclei are integrating both the labyrinthine and visual inputs.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0014-4886
1090-2430
DOI:10.1016/0014-4886(74)90014-4