Document Detail

The presence of coherence in sympathetic and phrenic activities in a developing mammal.
MedLine Citation:
PMID:  8787165     Owner:  NLM     Status:  MEDLINE    
To determine whether are development changes in the baroreceptor and central respiratory modulation of sympathetic activity, we used ordinary and partial coherence spectral analyses on cervical and splanchnic sympathetic activity in swine 1-36 days old. Removal of baroreceptor influences from cervical sympathetic and splanchnic spectra using partialization shows that 3-6 Hz peaks are due to baroreceptors since coherence decreased in > 19 days old while remaining unchanged in < 2 weeks old piglets. The 8-12 Hz band (present in normal coherence after 21 days) was revealed in piglets < 14 days old after removal of respiratory modulation by partialization; similarly increased coherence was also observed in the 16-18 Hz band through 3 weeks. Thus, use of partial power and coherency is a useful tool for unmasking the complex relationship found in developing SYMP outflows. These results suggest that there is a period of reorganization within the SYMP rhythm generating circuits, which may be essential for normal development.
P M Gootman; B W Hundley; A L Sica
Related Documents :
1375635 - Effects of sympathetic activity and galanin on cardiac vagal action in anaesthetized cats.
15296795 - Use of time-frequency analysis to investigate temporal patterns of cardiac autonomic re...
18063515 - Impact of glycemic control, disease duration, and exercise on heart rate variability in...
15939725 - Enhanced vagal modulation and exercise induced ischaemia of the inferoposterior myocard...
18797825 - Effects of exhaustion and calcium supplementation on adrenocorticotropic hormone and co...
23269865 - Effectiveness of an exercise program on postural control in frail older adults.
Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Acta neurobiologiae experimentalis     Volume:  56     ISSN:  0065-1400     ISO Abbreviation:  Acta Neurobiol Exp (Wars)     Publication Date:  1996  
Date Detail:
Created Date:  1996-09-23     Completed Date:  1996-09-23     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  1246675     Medline TA:  Acta Neurobiol Exp (Wars)     Country:  POLAND    
Other Details:
Languages:  eng     Pagination:  137-45     Citation Subset:  IM    
Department of Physiology, State University of New York-Health Science Center at Brooklyn 11203-2098, USA.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Animals, Newborn
Phrenic Nerve / physiology*
Sympathetic Nervous System / physiology*
Grant Support

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Brainstem neurones and postganglionic sympathetic nerves: does correlation mean connection?
Next Document:  Cholinergic/GABAergic interaction in the production of EEG theta oscillations in rat hippocampal for...