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Responses of bulbar reticular units to hypothalamic stimulation in the rat

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Summary

Extracellular unit action potentials were recorded from the bulbar reticular formation of the rat. Among 115 spontaneously active neurons 20 were accelerated, and 16 were inhibited by a repetitive electrical stimulus in the posterior hypothalamus, and 6 neurons responded to such stimulation in a biphasic manner by exhibiting post-stimulatory rebound.

Zusammenfassung

Von einzelnen Zellen der bulbären Formatio reticularis der Ratte wurden Aktionspotentiale extrazellular abgeleitet. Von 115 spontan entladenden Neuronen antworteten auf einen Reiz im hinteren Hypothalamus 20 Neurone mit einer Beschleunigung und 16 mit einer Verlangsamung oder vollständigen Hemmung. 6 Neurone antworteten auf einen solchen Reiz mit einer zweiphasigen Frequenzänderung durch poststimulatorische Frequenzumkehr.

Résumé

On a dérivé les potentiels d'action des unités extracellulaires de la formation réticulaire du rat. Parmi 115 neurones spontanément actifs 20 sont accélérés et 16 sont inhibés lors d'une stimulation électrique répétitive de l'hypothalamus postérieur et 6 neurones répondent à cette stimulation d'une façon diphasique en présentant un rebond post-stimulatoire.

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Author notes

  1. Harald Scherrer

    Present address: Allgemeines Krankenhaus, Linz/Donau, Österreich

Authors and Affiliations

  1. Department of Anatomy, University of British Columbia, Vancouver, B. C., Canada

    Harald Scherrer

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  1. Harald Scherrer
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Additional information

With 7 Figures

This study was supported by a grant from the Medical Research Council of Canada.

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Scherrer, H. Responses of bulbar reticular units to hypothalamic stimulation in the rat. Acta Neurovegetativa 29, 45–55 (1966). https://doi.org/10.1007/BF01226706

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  • DOI: https://doi.org/10.1007/BF01226706

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