Optic organ and cervical proprioceptors in maintenance of body equilibrium.

Optic organ and cervical proprioceptors in maintenance of body equilibrium. Research Abstract Details 

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Optic organ and cervical proprioceptors in maintenance of body equilibrium. Abstract Text:

M Hinoki,S Hine,S Okada,Y Ishida,S Koike,

Two experiments were made on the functional correlation between the optic organ and the cervical proprioceptors in maintenance of body equilibrium. Experiment I: The effects of weak and strong electric stimulation of the deep nuchal muscles on changes in optokinetic nystagmus and optokinetic after-nystagmus were examined in adult non-albino rabbits with binocular vision. Experiment II: Experiment I was repeated on rabbits with monocular vision giving optokinetic stimulation moving from the side of the blindfolded eye to that of the open eye and applying only weak electric stimulation to the neck muscles. The results obtained were as follows: (1) Experiment I: Weak electric stimulation of the deep nuchal muscles of rabbits with binocular vision tended to promote optokinetic nystagmus with either no significant change or decrease in optokinetic after-nystagmus. Strong electric stimulation had the opposite effects, i.e., it tended to inhibit optokinetic nystagmus and activate optokinetic after-nystagmus. It also produced abnormal optokinetic nystagmus, such as the inversion phenomenon of optokinetic nystagmus and "optokinetic nystagmus firing". (2) Experiment II: Weak electric stimulation of the deep nuchal muscles of rabbits with monocular vision had similar effects to those in experiment I, but promotion of optokinetic nystagmus was less obvious, while activation of optokinetic after-nystagmus was more marked. In addition, the inversion phenomenon of optokinetic nystagmus developed even on weak electric stimulation. From these results the following conclusions were drawn: (1) The cervical proprioceptors can function in two mechanisms causing promotion and break down of equilibrium of the optokinetic system. (2) The cervical proprioceptors, as an organ of equilibrium, can exert two different actions on the optokinetic eye reflexes, i.e., they can promote optokinetic nystagmus and inhibit optokinetic after-nystagmus.

Optic organ and cervical proprioceptors in maintenance of body equilibrium. Publishing Authors By Initials

M Hinoki,S Hine,S Okada,Y Ishida,S Koike,

For similar nervous system: peripheral nervous system: nerve endings: receptors, sensory research abstracts see: nervous system: peripheral nervous system: nerve endings: receptors, sensory research

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Optic organ and cervical proprioceptors in maintenance of body equilibrium. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Acta oto-laryngologica. Supplementum

VOLUME: 330

Page Numbers: 169-84

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ISSN: 0365-5237

DAY: 13

MONTH: 02

YEAR: 1975

Optic organ and cervical proprioceptors in maintenance of body equilibrium. Information

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LANGUAGE: eng

NlmUniqueID: 370355

Optic organ and cervical proprioceptors in maintenance of body equilibrium. Keywords Mesh Terms:

KEYWORDS: Receptors, Sensory

MESH TERMS: physiology

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Country: SWEDEN

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MEDLINETA: Acta Otolaryngol Suppl

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