Document Detail


Combined effect of depressive symptoms and hostility on autonomic nervous system function.
MedLine Citation:
PMID:  21851841     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Depression and hostility have been separately related to indicators of sympathetic hyperactivation and parasympathetic hypoactivation. We examined the associations of depressive symptoms, hostility, and their interaction with pre-ejection period (PEP) and high frequency heart rate variability (HRV), specific indices of sympathetic and parasympathetic cardiac control, respectively. Healthy, young adults (N=120) completed questionnaires assessing depressive symptoms and hostility and underwent autonomic testing. Although main effects were not observed, a depressive symptoms×hostility interaction was detected for PEP (β=.25, p=.01). Simple slope analyses revealed that hostility was negatively related to PEP among individuals with low depressive symptoms but was not associated with PEP among those with mild-to-moderate depressive symptoms. No interaction effect was detected for high frequency HRV. Our findings suggest that depressive symptoms may moderate the link between hostility and sympathetic activation such that hostility is accompanied by sympathetic hyperactivation only when depressive symptoms are minimal.
Authors:
Misty A W Hawkins; Jesse C Stewart; Griffin J Fitzgerald; Sungkyung Kim
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-8-15
Journal Detail:
Title:  International journal of psychophysiology : official journal of the International Organization of Psychophysiology     Volume:  -     ISSN:  1872-7697     ISO Abbreviation:  -     Publication Date:  2011 Aug 
Date Detail:
Created Date:  2011-8-19     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8406214     Medline TA:  Int J Psychophysiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011. Published by Elsevier B.V.
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