Auditory and Vestibular Systems – Lateral LineVestibular inputs to bulbar respiratory interneurons in the catNakazawa, Ken1; Zheng, Yu2; Umezaki, Toshiro1; Miller, Alan D.1,3Author Information 1The Rockefeller University, 1230 York Avenue, New York, NY 10021-6399, USA 2Department of Physiology, West China University of Medical Sciences, 610044, Chengdu, PR China 3Corresponding Author: Alan D. Miller ACKNOWLEDGEMENTS: This work was supported by grant DC02644 from the National Institute on Deafness and Other Communication Disorders, National Institute of Health. We thank Dr Bill J. Yates for comments on the manuscript. Website publication 3 October 1997 Received 6 August 1997; accepted 17 August 1997 NeuroReport: October 20th, 1997 - Volume 8 - Issue 15 - p 3395-3398 Buy Abstract VESTIBULAR inputs to medullary respiratory interneurons were studied in decerebrated and artificially ventilated cats. Extracellular recordings were made from 40 neurons located in the area of pre-Bötzinger complex and activated antidromically from the contralateral ventral respiratory group. Neuronal populations analyzed included inspiratory and expiratory neurons with augmenting, constant and decrementing firing patterns, and a late inspiratory neuron. Seventeen neurons responded to ipsilateral and/or contralateral vestibular nerve electrical stimulation. These responses were observed in all seven cell types. Most neuronal reflex responses consisted of inhibition, while a few consisted of either excitation or a combination of both inhibition and excitation. These results indicate that pre-Bötzinger respiratory interneurons, which may be involved in respiratory rhythmogenesis, also participate in vestibulorespiratory responses. © Lippincott-Raven Publishers.