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Differences in the late positive potential in response to emotional stimuli in trauma-exposed people
Descriptive
TitleInfo
Title
Differences in the late positive potential in response to emotional stimuli in trauma-exposed people
Name
(type = personal)
NamePart
(type = family)
Fedorenko
NamePart
(type = given)
Erick J.
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Erick J. Fedorenko
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(authority = RULIB)
author
Name
(type = personal)
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(type = family)
Contrada
NamePart
(type = given)
Richard
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Richard Contrada
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Advisory Committee
Role
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(authority = RULIB)
chair
Name
(type = personal)
NamePart
(type = family)
Leyro
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(type = given)
Teresa
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Teresa Leyro
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Advisory Committee
Role
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(authority = RULIB)
internal member
Name
(type = personal)
NamePart
(type = family)
Farris
NamePart
(type = given)
Samantha
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Samantha Farris
Affiliation
Advisory Committee
Role
RoleTerm
(authority = RULIB)
internal member
Name
(type = corporate)
NamePart
Rutgers University
Role
RoleTerm
(authority = RULIB)
degree grantor
Name
(type = corporate)
NamePart
School of Graduate Studies
Role
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(authority = RULIB)
school
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Text
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theses
OriginInfo
DateCreated
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2020
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(type = degree)
2020-01
Language
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(authority = ISO 639-3:2007);
(type = text)
English
Abstract
(type = abstract)
Despite the high prevalence of post-traumatic stress disorder (PTSD; Kilpatrick et al., 2013), much is still unknown about the etiology of this debilitating condition. Dysregulated reactivity to emotional stimuli has been implicated in the maintenance and onset of PTSD symptoms (McLean & Foa, 2017; Nawjin et al., 2015). Neurobiological markers of emotional reactivity in response to emotional stimuli can help elucidate the relationship between post-trauma psychopathology and emotional processing. The late positive potential (LPP) is an event-related potential that is associated with emotional reactivity to salient stimuli and can be used as neural measure of dysregulated emotional processes in clinical and subclinical populations (Hajcak et al., 2010). However, results of studies of the relationship between the LPP in response to emotional stimuli and PTSD symptoms in trauma-exposed people have been mixed (e.g., DiGangi et al., 2017; Lobo et al., 2014). The purpose of the current study was to test the relationship between emotional reactivity, as measured by the LPP, and PTSD symptoms in trauma-exposed people. We hypothesized that trauma-exposed people will have greater LPP amplitude in response to negative stimuli than to positive or neutral stimuli, and that greater LPP amplitude to negative stimuli will be associated with greater severity of PTSD symptoms. Data from 76 trauma-exposed undergraduates were used. Participants viewed a series of negative, neutral, and positive images while ERPs were recorded. Negative images produced the highest LPP amplitudes, followed by positive and neutral images. However, LPP amplitudes to emotional images did not predict PTSD symptoms. These results suggest that trauma-exposed people experience stronger emotional reactions to negative compared to positive images. More work is needed to understand the relationship between emotional reactivity and PTSD symptoms.
Subject
(authority = RUETD)
Topic
Psychology
Subject
(authority = LCSH)
Topic
Post-traumatic stress disorder
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TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
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ETD
Identifier
ETD_10476
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application/pdf
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text/xml
Extent
1 online resource (vii, 43 pages) : illustrations
Note
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M.S.
Note
(type = bibliography)
Includes bibliographical references
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Title
School of Graduate Studies Electronic Theses and Dissertations
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rucore10001600001
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(displayLabel = Rutgers, The State University of New Jersey)
NjNbRU
Identifier
(type = doi)
doi:10.7282/t3-ke0a-7f48
Genre
(authority = ExL-Esploro)
ETD graduate
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Rights
RightsDeclaration
(ID = rulibRdec0006)
The author owns the copyright to this work.
RightsHolder
(type = personal)
Name
FamilyName
Fedorenko
GivenName
Erick
Role
Copyright Holder
RightsEvent
Type
Permission or license
DateTime
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(point = start)
2019-12-22 16:25:17
AssociatedEntity
Name
Erick Fedorenko
Role
Copyright holder
Affiliation
Rutgers University. School of Graduate Studies
AssociatedObject
Type
License
Name
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.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
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Technical
RULTechMD
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ETD
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windows xp
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1.4
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2020-01-08T17:39:46
DateCreated
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(encoding = w3cdtf);
(qualifier = exact)
2020-01-08T17:39:46
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