JN Fuel your research with LabChart
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

J Neurophysiol 52: 771-785, 1984;
0022-3077/84 $5.00
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
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 Averill, D. B.
Right arrow Articles by Berger, A. J.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Averill, D. B.
Right arrow Articles by Berger, A. J.

Journal of Neurophysiology, Vol 52, Issue 4 771-785, Copyright © 1984 by APS

ARTICLES

Monosynaptic excitation of dorsal medullary respiratory neurons by slowly adapting pulmonary stretch receptors

D. B. Averill, W. E. Cameron and A. J. Berger

The discharges of individual slowly adapting pulmonary stretch receptors (PSRs) and single respiratory neurons of the dorsal respiratory group (DRG) within the ventrolateral subnucleus of the solitary tract were recorded simultaneously in anesthetized, paralyzed, artificially ventilated cats. DRG neurons were classified as P-cell, I-alpha, or I-beta, based on the alteration in activity during respiratory cycles when lung inflation was withheld compared to activity when the lungs were inflated in phase with central inspiratory drive. In some cases, vagal stimulation was also used to classify respiratory neurons. Synaptic input of PSRs onto DRG neurons was examined by the construction of cross-correlograms for the simultaneously recorded discharge of individual PSRs (reference events) and individual DRG neurons (correlated events). Monosynaptic excitatory connections were demonstrated by peaks in 26% of the cross-correlograms of PSR and P-cell pairs and 20% of the cross-correlograms of PSR and I-beta neuron pairs. The ratio of the peak number of occurrences to the background number of occurrences (k value) was comparable for P-cells and I-beta neurons: 2.96 +/- 2.09 and 1.62 +/- 0.36 (mean +/- SD), respectively. P-cells and I-beta neurons also had similar short latencies for the peak of increased probability of discharge: 2.74 +/- 0.53 and 2.57 +/- 0.63 ms, respectively. No evidence was obtained demonstrating synaptic connectivity between PSRs and I-alpha neurons. Interpretations of this negative result are discussed.


This article has been cited by other articles:


Home page
 Am. J. Physiol. Regul. Integr. Comp. Physiol.Home page
V. Marchenko and R. F. Rogers
Retention of lung distension information in pump cell spike trains
Am J Physiol Regulatory Integrative Comp Physiol, July 1, 2007; 293(1): R343 - R353.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
L. Kubin, G. F. Alheid, E. J. Zuperku, and D. R. McCrimmon
Central pathways of pulmonary and lower airway vagal afferents
J Appl Physiol, August 1, 2006; 101(2): 618 - 627.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
R. F. Rogers, J. D. Runyan, A. G. Vaidyanathan, and J. S. Schwaber
Information Theoretic Analysis of Pulmonary Stretch Receptor Spike Trains
J Neurophysiol, January 1, 2001; 85(1): 448 - 461.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurosci.Home page
F. Hayashi, S. K. Coles, and D. R. McCrimmon
Respiratory Neurons Mediating the Breuer-Hering Reflex Prolongation of Expiration in Rat
J. Neurosci., October 15, 1996; 16(20): 6526 - 6536.
[Abstract] [Full Text] [PDF]


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