Properties of utricular-activated vestibular neurons that project to the contralateral vestibular nuclei in the cat.

Properties of utricular-activated vestibular neurons that project to the contralateral vestibular nuclei in the cat. Research Abstract Details 

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Properties of utricular-activated vestibular neurons that project to the contralateral vestibular nuclei in the cat. Abstract Text:

R Bai,H Meng,H Sato,M Imagawa,M Sasaki,Y Uchino,

The properties of utricular (UT)-activated vestibular neurons that send axons to the contralateral vestibular nuclei (commissural neurons) were investigated intracellularly or extracellularly in decerebrate cats. A total of 27 vestibular neurons were orthodromically activated by stimulation of UT nerves and antidromically activated by stimulation of the contralateral vestibular nuclei. All neurons tested were classified as vestibulospinal (VS), vestibulooculospinal (VOS), vestibuloocular (VO), and unidentified vestibular neurons (V) after antidromic stimulation of the spinal cord and oculomotor/trochlear nuclei. Most UT-activated commissural neurons (20/27) received monosynaptic inputs. Twelve of 27 commissural neurons were located in the medial vestibular nucleus, 5 were in the lateral vestibular nucleus, 10 were in the descending vestibular nucleus, and no commissural neurons were recorded in the superior vestibular nucleus. Seven of 27 neurons were commissural VS neurons, 9 of 27 were commissural VOS neurons, and 11 of 27 were commissural V neurons. No commissural VO neurons were found. All VOS neurons and 3 VS neurons issued descending axons via the medial vestibulospinal tract. We also studied convergent inputs from the posterior semicircular canal (PC) nerve onto UT-activated commissural neurons. Five of 27 UT-activated commissural neurons received converging inputs from the PC nerves.

Properties of utricular-activated vestibular neurons that project to the contralateral vestibular nuclei in the cat. Publishing Authors By Initials

R Bai,H Meng,H Sato,M Imagawa,M Sasaki,Y Uchino,

For similar nervous system: central nervous system: brain: brain stem: rhombencephalon: metencephalon: pons: vestibular nuclei research abstracts see: nervous system: central nervous system: brain: brain stem: rhombencephalon: metencephalon: pons: vestibular nuclei research

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Properties of utricular-activated vestibular neurons that project to the contralateral vestibular nuclei in the cat. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Experimental brain research. Experimentelle Hirnfo

VOLUME: 147

Page Numbers: 419-25

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ISSN: 0014-4819

DAY: 19

MONTH: 10

YEAR: 2002

Properties of utricular-activated vestibular neurons that project to the contralateral vestibular nuclei in the cat. Information

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LANGUAGE: eng

NlmUniqueID: 43312

Properties of utricular-activated vestibular neurons that project to the contralateral vestibular nuclei in the cat. Keywords Mesh Terms:

KEYWORDS: Vestibular Nuclei

MESH TERMS: physiology

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Grant and Affiliation Information for Properties of utricular-activated vestibular neurons that project to the contralateral vestibular nuclei in the cat.

AFFILIATION: Department of Physiology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo 160-8402, Japan.

Country: Germany

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MEDLINETA: Exp Brain Res

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