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Medial vestibular nucleus in the guinea-pig

Medial vestibular nucleus in the guinea-pig 221 84 84 2 2 M. Serafin C. de Waele A. Khateb P. P. Vidal M. Mühlethaler Département de Physiologie CMU 1 Rue Michel Servet CH-1211 Genève 4 Switzerland Laboratoire de Physiologie Neurosensorielle, CNRS 15 Rue de l'Ecole de Médecine F-75270 Paris Cedex 06 France Summary Intracellular recordings were obtained from medial vestibular nuclei neurones (MVNn) in guinea-pig brainstem slices. Two main distinct neuronal classes were encountered. Type A MVNn (32.3%) were characterized by a broad action potential followed by a deep single afterhyperpolarization, a transient A-like rectification, and a single range of firing in response to current injection. Type B MVNn (47.1%), in contrast, were distinguished by the presence of a thin action potential followed first by a fast and then by a delayed and slower afterhyperpolarization. In addition, they displayed a secondary range of firing in their response to current injection. A majority of B MVNn also had either subthreshold plateau potentials or low threshold spike bursts or a combination thereof. A third, non-homogeneous class of cells, could not be fitted into either one of the two main classes (20.6%, type C MVNn). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Experimental Brain Research Springer Journals

Medial vestibular nucleus in the guinea-pig

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References (27)

Publisher
Springer Journals
Copyright
Copyright © 1991 by Springer-Verlag
Subject
Biomedicine; Neurosciences; Neurology
ISSN
0014-4819
eISSN
1432-1106
DOI
10.1007/BF00231464
Publisher site
See Article on Publisher Site

Abstract

221 84 84 2 2 M. Serafin C. de Waele A. Khateb P. P. Vidal M. Mühlethaler Département de Physiologie CMU 1 Rue Michel Servet CH-1211 Genève 4 Switzerland Laboratoire de Physiologie Neurosensorielle, CNRS 15 Rue de l'Ecole de Médecine F-75270 Paris Cedex 06 France Summary Intracellular recordings were obtained from medial vestibular nuclei neurones (MVNn) in guinea-pig brainstem slices. Two main distinct neuronal classes were encountered. Type A MVNn (32.3%) were characterized by a broad action potential followed by a deep single afterhyperpolarization, a transient A-like rectification, and a single range of firing in response to current injection. Type B MVNn (47.1%), in contrast, were distinguished by the presence of a thin action potential followed first by a fast and then by a delayed and slower afterhyperpolarization. In addition, they displayed a secondary range of firing in their response to current injection. A majority of B MVNn also had either subthreshold plateau potentials or low threshold spike bursts or a combination thereof. A third, non-homogeneous class of cells, could not be fitted into either one of the two main classes (20.6%, type C MVNn).

Journal

Experimental Brain ResearchSpringer Journals

Published: Apr 1, 1991

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