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Original Article

Firing Mechanisms In The Single Vestibular Neurons In The Cat

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Pages 415-421 | Received 03 Sep 1974, Published online: 08 Jul 2009
 

Abstract

Spontaneous unitary discharges in nucleus vestibularis lateralis (NVL) neurons were studied in locally anesthetized cats. The mean+S.E. firing rate of spontaneous unitary discharges of NVL neurons was 19.8±0.9 Hz. About 12 % of NVL neurons showed a random firing. The spontaneous unitary discharge rate of the gamma distribution at lambda=2 was relatively low. However, the others were high. Patterns of peak interval time of the distribution with one peak and the interpeak interval time of those with two and three peaks were almost the same.

Gamma distribution at λ=2.

The distribution pattern fits the theoretical gamma distribution pattern at λ=2 and formula diagrammed in Discussion.

ZUSAMMENFASSUNG

Die Spontanaktivität von Neuronen im Nucleus Vestibularis Lateralis (NVL) von lokal narkotisierten Katzen wurde untersucht. Die durchschnittliche Entladungsrate ± s.f. der Spontanaktivitat von diesen Neuronen war 19.8± 0.9 Hz. Die Spontanaktivitätsraten der Neuronen, die Gamma-Verteilung (λ = 2) zeigten, waren relativ niedrig, die der Neuronen aber hoch. Die Formen der Spitzenintervalezeit (Kurven mit einer, zwei und drei Spitzen) waren fast gleich.

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