AJP - Regu Journal of Neurophysiology
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Am J Physiol Regul Integr Comp Physiol 273: R1946-R1956, 1997;
0363-6119/97 $5.00
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Woodring, S. F.
Right arrow Articles by Yates, B. J.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Woodring, S. F.
Right arrow Articles by Yates, B. J.

AJP - Regulatory, Integrative and Comparative Physiology, Vol 273, Issue 6 1946-R1956, Copyright © 1997 by American Physiological Society

ARTICLES

Responses of ventral respiratory group neurons of the cat to natural vestibular stimulation

S. F. Woodring and B. J. Yates
Department of Otolaryngology, University of Pittsburgh, Pennsylvania 15213, USA.

Stimulation of vestibular otolith afferents by fore-aft tilt (pitch) elicits changes in activity of nerves innervating respiratory muscles, including the diaphragm, abdominal muscles, and tongue musculature. To determine the role of ventral respiratory group (VRG) neurons in producing these vestibular-respiratory responses, the activity of VRG neurons was recorded during natural vestibular stimulation in multiple transverse planes. Only a small fraction of VRG neurons with inspiratory (I, 20 of 80 cells), expiratory (E, 11 of 59 cells), or phase spanning (4 of 16 cells) activity responded to tilts up to 15 degrees in amplitude delivered at frequencies from 0.02 to 2 Hz. In particular, responses were infrequent in VRG neurons with projections to the spinal cord (0 of 23 E cells and 2 of 15 degrees I cells), despite the fact that the tilts employed produced robust modulation of the activity of abdominal (expiratory) nerves. Furthermore, the characteristics of responses to tilt of the small fraction of VRG neurons with vestibular inputs did not match those of respiratory muscles. These data suggest that neurons in addition to those in the VRG must participate in generating vestibular-respiratory responses.


This article has been cited by other articles:


Home page
 J. Appl. Physiol.Home page
J. P. Hernandez, F. Xu, and D. T. Frazier
Medial vestibular nucleus mediates the cardiorespiratory responses to fastigial nuclear activation and hypercapnia
J Appl Physiol, September 1, 2004; 97(3): 835 - 842.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
I. Billig, J. P. Card, and B. J. Yates
Plasticity in Respiratory Motor Control: Selected Contribution: Neurochemical phenotypes of MRF neurons influencing diaphragm and rectus abdominis activity
J Appl Physiol, January 1, 2003; 94(1): 391 - 398.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurosci.Home page
I. Billig, J. M. Foris, L. W. Enquist, J. P. Card, and B. J. Yates
Definition of Neuronal Circuitry Controlling the Activity of Phrenic and Abdominal Motoneurons in the Ferret Using Recombinant Strains of Pseudorabies Virus
J. Neurosci., October 1, 2000; 20(19): 7446 - 7454.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Visit Other APS Journals Online