Baroreceptor influences on cardiac-related sympathetic nerve activity

Shaun F. Morrison; Susan M. Barman; Gerard L. Gebber

doi:10.1016/0006-8993(84)90419-0

Baroreceptor influences on cardiac-related sympathetic nerve activity

Shaun F. Morrison, Susan M. Barman, Gerard L. Gebber

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

We studied the effect of a dropped ventricular beat (i.e. loss of one cycle of pulse synchronous baroreceptor nerve activity) on the centrally generated 2-6 Hz oscillation in postganglionic symphathetic nerve discharge (SND) in cats anesthetized with Dial-urethane. The results indicate that in each cardiac cycle baroreceptor nerve activity can: (1) decrease the rate of recruitment and number of postganglionic fibers that become active and (2) advance the onset of central inhibition responsible for the abrupt decline of SND. These effects are independent of baroreceptor-mediated entrainment of the 2-6 Hz oscillation of SND to the cardiac cycle.

Original language	English (US)
Pages (from-to)	175-178
Number of pages	4
Journal	Brain research
Volume	301
Issue number	1
DOIs	https://doi.org/10.1016/0006-8993(84)90419-0
State	Published - May 28 1984
Externally published	Yes

Keywords

baroreceptor mechanisms
cardiac-related neural oscillation
dropped ventricular beat
phase relationship
sympathetic nerve discharge

ASJC Scopus subject areas

General Neuroscience
Molecular Biology
Clinical Neurology
Developmental Biology

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10.1016/0006-8993(84)90419-0

Cite this

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title = "Baroreceptor influences on cardiac-related sympathetic nerve activity",

abstract = "We studied the effect of a dropped ventricular beat (i.e. loss of one cycle of pulse synchronous baroreceptor nerve activity) on the centrally generated 2-6 Hz oscillation in postganglionic symphathetic nerve discharge (SND) in cats anesthetized with Dial-urethane. The results indicate that in each cardiac cycle baroreceptor nerve activity can: (1) decrease the rate of recruitment and number of postganglionic fibers that become active and (2) advance the onset of central inhibition responsible for the abrupt decline of SND. These effects are independent of baroreceptor-mediated entrainment of the 2-6 Hz oscillation of SND to the cardiac cycle.",

keywords = "baroreceptor mechanisms, cardiac-related neural oscillation, dropped ventricular beat, phase relationship, sympathetic nerve discharge",

author = "Morrison, {Shaun F.} and Barman, {Susan M.} and Gebber, {Gerard L.}",

note = "Funding Information: This study was supported by National Institutes of Health Grants HL-13187 and NS-06693.",

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T1 - Baroreceptor influences on cardiac-related sympathetic nerve activity

AU - Morrison, Shaun F.

AU - Barman, Susan M.

AU - Gebber, Gerard L.

N1 - Funding Information: This study was supported by National Institutes of Health Grants HL-13187 and NS-06693.

PY - 1984/5/28

Y1 - 1984/5/28

N2 - We studied the effect of a dropped ventricular beat (i.e. loss of one cycle of pulse synchronous baroreceptor nerve activity) on the centrally generated 2-6 Hz oscillation in postganglionic symphathetic nerve discharge (SND) in cats anesthetized with Dial-urethane. The results indicate that in each cardiac cycle baroreceptor nerve activity can: (1) decrease the rate of recruitment and number of postganglionic fibers that become active and (2) advance the onset of central inhibition responsible for the abrupt decline of SND. These effects are independent of baroreceptor-mediated entrainment of the 2-6 Hz oscillation of SND to the cardiac cycle.

AB - We studied the effect of a dropped ventricular beat (i.e. loss of one cycle of pulse synchronous baroreceptor nerve activity) on the centrally generated 2-6 Hz oscillation in postganglionic symphathetic nerve discharge (SND) in cats anesthetized with Dial-urethane. The results indicate that in each cardiac cycle baroreceptor nerve activity can: (1) decrease the rate of recruitment and number of postganglionic fibers that become active and (2) advance the onset of central inhibition responsible for the abrupt decline of SND. These effects are independent of baroreceptor-mediated entrainment of the 2-6 Hz oscillation of SND to the cardiac cycle.

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KW - dropped ventricular beat

KW - phase relationship

KW - sympathetic nerve discharge

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Baroreceptor influences on cardiac-related sympathetic nerve activity

Abstract

Keywords

ASJC Scopus subject areas

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