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Cortical asymmetry as a potential link between depressive symptoms and cardiovascular reactivity

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TypeOfResource
Text
TitleInfo (ID = T-1)
Title
Cortical asymmetry as a potential link between depressive symptoms and cardiovascular reactivity
Identifier (type = hdl)
http://hdl.rutgers.edu/1782.2/rucore10001600001.ETD.17432
Identifier
ETD_1128
Language
LanguageTerm
English
Genre (authority = marcgt)
theses
Subject (ID = SBJ-1); (authority = RUETD)
Topic
Psychology
Subject (ID = SBJ-2); (authority = ETD-LCSH)
Topic
Psychophysiology
Subject (ID = SBJ-3); (authority = ETD-LCSH)
Topic
Depression, Mental
Subject (ID = SBJ-4); (authority = ETD-LCSH)
Topic
Cardiovascular system--Diseases--Psychosomatic aspects
Abstract
Although depression appears to be an independent risk factor for cardiovascular morbidity and mortality, the mechanisms by which emotion dysregulation leads to cardiovascular disease (CVD) are largely unclear. One suggestion that has received considerable attention is that depression promotes cardiovascular reactivity, which is hypothesized to contribute to CVD over time (Blascovich & Katkin, 1993; Krantz & Manuck, 1984). There are putative neurobiological pathways by which the brain communicates with the heart during the processing of emotion and stress. Prefrontal cortical asymmetry appears to be an objective physiological index of a depressive affective style that may promote autonomic nervous system dysregulation. In the proposed study, cortical asymmetry was examined as a predictor of cardiovascular reactivity. Sixty-four healthy female undergraduate students completed the Beck Depression Inventory-II (Beck et al., 1996) and a speech stressor task, in which they were asked to recall a personally-relevant event that made them feel depressed. It was hypothesized that greater self-reported depression would be associated with right-lateralized prefrontal cortical asymmetry, and that this asymmetry would be associated with increased systolic blood pressure (SBP), diastolic blood pressure (DBP), and heart rate (HR) at rest and during the speech. Results indicated that greater self-reported depression was neither associated with right-dominant prefrontal cortical asymmetry nor cardiovascular resting activity nor reactivity to the stressor. Although several analyses also revealed that cortical asymmetry did not moderate the effect of depression on cardiovascular reactivity, right dominant midfrontal cortical activity was a significant predictor of increased DBP reactivity to the speech stressor when electrocortical activity was treated as a categorical variable. Continued investigation of cortical asymmetry as a potential link between clinical depression and increased vascular resistance may be useful in clarifying the utility of EEG measures of depression and for identifying high-risk groups for CVD.
PhysicalDescription
Extent
vii, 37 pages
InternetMediaType
application/pdf
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text/xml
Note (type = degree)
M.S.
Note (type = bibliography)
Includes bibliographical references (p. 30-35).
Name (ID = NAME-1); (type = personal)
NamePart (type = family)
Betensky
NamePart (type = given)
Julia
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author
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Julia Betensky
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Contrada
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Richard J.
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chair
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Advisory Committee
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Richard J. Contrada
Name (ID = NAME-3); (type = personal)
NamePart (type = family)
Wilson
NamePart (type = given)
Terence
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internal member
Affiliation
Advisory Committee
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Terence Wilson
Name (ID = NAME-4); (type = personal)
NamePart (type = family)
Kusnecov
NamePart (type = given)
Alexander
Role
RoleTerm (authority = RULIB)
internal member
Affiliation
Advisory Committee
DisplayForm
Alexander Kusnecov
Name (ID = NAME-1); (type = corporate)
NamePart
Rutgers University
Role
RoleTerm (authority = RULIB)
degree grantor
Name (ID = NAME-2); (type = corporate)
NamePart
Graduate School - New Brunswick
Role
RoleTerm (authority = RULIB)
school
OriginInfo
DateCreated (qualifier = exact)
2008
DateOther (qualifier = exact); (type = degree)
2008-10
Location
PhysicalLocation (authority = marcorg)
NjNbRU
RelatedItem (type = host)
TitleInfo
Title
Graduate School - New Brunswick Electronic Theses and Dissertations
Identifier (type = local)
rucore19991600001
Identifier (type = doi)
doi:10.7282/T3T1540F
Genre (authority = ExL-Esploro)
ETD graduate
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The author owns the copyright to this work.
Copyright
Status
Copyright protected
Availability
Status
Open
AssociatedEntity (AUTHORITY = rulib); (ID = 1)
Name
Julia Betensky
Role
Copyright holder
Affiliation
Rutgers University. Graduate School - New Brunswick
RightsEvent (AUTHORITY = rulib); (ID = 1)
Type
Permission or license
Detail
Non-exclusive ETD license
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License
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Author Agreement License
Detail
I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
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132096
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