Document Detail


Rumination and cortisol responses to laboratory stressors.
MedLine Citation:
PMID:  18606726     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: For some, a stressor's psychological and physiological influence ceases on removal; for others, the effects may persist through rumination. These repetitive, intrusive thoughts might prolong physiological stress responses. Previous studies produced mixed results, indicating a need to clarify the relationship between rumination and cortisol responses. The current study investigated whether a laboratory speech task is sufficient to elicit rumination and whether those who ruminated in response to the speech task have elevated cortis of responses. Additionally, whether trait depressive rumination follows a similar pattern was examined. It was hypothesized that those delivering speeches in a social-evaluative context would experience more posttask rumination and that greater posttask rumination would predict elevated cortisol responses. METHODS: Eighty-nine participants performed a speech in front of an evaluative panel (SET) or in one of two nonexplicitly evaluative conditions. Participants indicated the frequency of the thoughts they experienced during a 10-minute rest period after the speech as a measure of posttask rumination. Salivary cortisol was collected at five time points throughout the session. RESULTS: The SET condition elicited more posttask rumination than the nonexplicitly evaluative conditions. Posttask rumination was associated with amplified and prolonged elevations in cortisol across all conditions. Trait depressive rumination was associated with blunted cortisol responses in the SET condition. There was no association between trait depressive rumination and cortisol responses in the nonexplicitly evaluative conditions. CONCLUSION: Results suggest that the nature of the relationship between cortisol activation and rumination may be contingent on how rumination is conceptualized and measured.
Authors:
Peggy M Zoccola; Sally S Dickerson; Frank P Zaldivar
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial; Research Support, N.I.H., Extramural    
Journal Detail:
Title:  Psychosomatic medicine     Volume:  70     ISSN:  1534-7796     ISO Abbreviation:  Psychosom Med     Publication Date:  2008 Jul 
Date Detail:
Created Date:  2008-07-08     Completed Date:  2008-09-22     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0376505     Medline TA:  Psychosom Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  661-7     Citation Subset:  IM    
Affiliation:
Department of Psychology and Social Behavior, College of Medicine, University of California, Irvine, Irvine, California 92697-7085, USA.
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
California
Cognition
Depression / psychology
Female
Humans
Hydrocortisone / metabolism*
Male
Predictive Value of Tests
Questionnaires
Saliva / metabolism
Speech
Stress, Psychological / etiology,  metabolism*,  psychology*
Students / psychology
Task Performance and Analysis
Thinking*
Verbal Behavior
Grant Support
ID/Acronym/Agency:
5M01RR 00827/RR/NCRR NIH HHS; 5M01RR 00828/RR/NCRR NIH HHS; 5M01RR 00829/RR/NCRR NIH HHS
Chemical
Reg. No./Substance:
50-23-7/Hydrocortisone

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


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