PMID: 2118732Sep 1, 1990Paper

Relationships between activity of sympathetic nerve pairs: phase and coherence

The American Journal of Physiology
B KocsisM J Kenney

Abstract

The coherence function and phase spectrum were used to study the relationships between the discharges of sets of two postganglionic or preganglionic sympathetic nerves in baroreceptor-denervated cats anesthetized with either 5,5-diallylbarbiturate-urethan or alpha-chloralose. Most of the power in sympathetic nerve discharge was contained between 2 and 6 Hz. The coherence values relating the activity of two nerves were significantly different from zero within this frequency band. The phase spectrum was either linear or complex (i.e., showed changes in slope) within the coherent frequency band. We observed three patterns of relationship. The first pattern was characterized by a constant interval between activity in different sympathetic nerves within the coherent frequency band. The second pattern was characterized by a frequency-dependent interval. The third pattern was characterized by uncoupling of the 2- to 6-Hz rhythms in the discharges of different nerves. Switching between these patterns was observed. We suggest that the three patterns reflect different functional states of the central system responsible for the 2- to 6-Hz rhythm. Two models of this system are entertained. The first model is one of a system of coupled osci...Continue Reading

Citations

May 9, 2000·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·M J KenneyR J Fels
Sep 9, 2000·Journal of Neurophysiology·P D LarsenS Zhong
Nov 4, 2004·Journal of Biological Rhythms·Gerard L GebberSusan M Barman
May 27, 2016·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Zhi-Ling GuoLiang-Wu Fu
Aug 22, 2001·American Journal of Physiology. Heart and Circulatory Physiology·M J KenneyR J Fels
Jul 18, 2002·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Michael J Kenney, Richard J Fels
Jun 26, 2004·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Stephanie C Tjen-A-LooiJohn C Longhurst
Jan 24, 2006·American Journal of Physiology. Heart and Circulatory Physiology·Stephanie C Tjen-A-LooiJohn C Longhurst
Sep 25, 2007·American Journal of Physiology. Heart and Circulatory Physiology·Stephanie C Tjen-A-LooiJohn C Longhurst
Apr 8, 2020·Frontiers in Physiology·Richard Ang, Nephtali Marina
Jun 10, 2000·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·G L GebberS M Barman
Apr 5, 2001·Journal of Neurophysiology·C D LewisS M Barman
Feb 25, 2006·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Bryan G HelwigMichael J Kenney
Jan 11, 2003·American Journal of Physiology. Heart and Circulatory Physiology·Michael J KenneyRichard J Fels
Oct 26, 2002·American Journal of Physiology. Heart and Circulatory Physiology·Susan M BarmanGerard L Gebber
Jul 17, 2001·American Journal of Physiology. Heart and Circulatory Physiology·H S OrerG L Gebber
Dec 18, 2001·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Susan M BarmanGerard L Gebber
Sep 3, 2010·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Susan M Barman, Hakan S Orer
Apr 6, 2000·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·S M BarmanH S Orer
Apr 9, 2005·Journal of Applied Physiology·Wei Yi Syuu ZhouJohn C Longhurst
Aug 18, 2009·American Journal of Physiology. Heart and Circulatory Physiology·Zhi-Ling GuoJohn C Longhurst
Nov 8, 2003·American Journal of Physiology. Heart and Circulatory Physiology·Paul J FadelGerard L Gebber

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