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THE ANGRY BRAIN: NEURAL CORRELATES OF INTERPERSONAL
PROVOCATION, DIRECTED RUMINATION, TRAIT DIRECT AGGRESSION,
AND TRAIT DISPLACED AGGRESSION
by
Thomas Frederick Denson
A Dissertation Presented to the
FACULTY OF THE GRADUATE SCHOOL
UNIVERSITY OF SOUTHERN CALIFORNIA
In Partial Fulfillment of the
Requirements for the Degree
DOCTOR OF PHILOSOPHY
(PSYCHOLOGY)
May 2007
Copyright 2007 Thomas Frederick Denson
Object Description
| Title | The angry brain: neural correlates of interpersonal provocation, directed rumination, trait direct aggression, and trait displaced aggression |
| Author | Denson, Thomas Frederick |
| Author email | denson@usc.edu |
| Degree | Doctor of Philosophy |
| Document type | Dissertation |
| Degree program | Psychology |
| School | College of Letters, Arts and Sciences |
| Date defended/completed | 2007-03-05 |
| Date submitted | 2007 |
| Restricted until | Unrestricted |
| Date published | 2007-04-12 |
| Advisor (committee chair) | Miller, Norman |
| Advisor (committee member) |
Lickel, Brian Lu, Zhong-Lin Nezami, Elahe Read, Stephen J. |
| Abstract | The present study investigated the neural correlates of interpersonal provocation (i.e., an insult), subsequent rumination, aggressive personality traits, and subjective anger experience. In the current study, the experimenter provoked 20 undergraduates and subsequent fMRI data was acquired. Participants then engaged in directed rumination tasks as well as a distraction task during functional image acquisition. As expected, the following areas were active in response to the provocation: the medial prefrontal cortex, the anterior and posterior cingulate cortex, the lateral prefrontal cortex, the insula, hippocampus, and thalamus. Also, consistent with hypotheses, the following regions were active during rumination: anterior and posterior cingulate, insula, medial prefrontal cortex, lateral prefrontal cortex, precuneus, and thalamus. Activity in the dorsal anterior cingulate was correlated with subjective reports of anger. Hippocampus activity following the provocation was correlated with the degree of subsequent self-reported rumination. Unique patterns of brain activity were observed for those high in trait general aggression versus those high in trait displaced aggression. Activity was greater in the left lateral prefrontal cortex than the right among men following the provocation, and among both men and women during rumination. This asymmetry was related to individual differences in behavioral approach, thus supporting the motivational direction (approach-withdrawal) model of prefrontal asymmetry. |
| Keyword | aggression; displaced aggression; aggressive personality; rumination; anger; neuroimaging; fMRI |
| Language | English |
| Part of collection | University of Southern California dissertations and theses |
| Publisher (of the original version) | University of Southern California |
| Place of publication (of the original version) | Los Angeles, California |
| Publisher (of the digital version) | University of Southern California. Libraries |
| Type | texts |
| Legacy record ID | usctheses-m380 |
| Rights | Denson, Thomas Frederick |
| Repository name | Libraries, University of Southern California |
| Repository address | Los Angeles, California |
| Repository email | http://www.usc.edu/isd/libraries/services/ask_a_librarian/email/ |
| Filename | etd-Denson-20070412 |
| Archival file | uscthesesreloadpub_Volume35/etd-Denson-20070412.pdf |
Description
| Title | Page 1 |
| Full text | THE ANGRY BRAIN: NEURAL CORRELATES OF INTERPERSONAL PROVOCATION, DIRECTED RUMINATION, TRAIT DIRECT AGGRESSION, AND TRAIT DISPLACED AGGRESSION by Thomas Frederick Denson A Dissertation Presented to the FACULTY OF THE GRADUATE SCHOOL UNIVERSITY OF SOUTHERN CALIFORNIA In Partial Fulfillment of the Requirements for the Degree DOCTOR OF PHILOSOPHY (PSYCHOLOGY) May 2007 Copyright 2007 Thomas Frederick Denson |
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