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oai:www.ideals.illinois.edu:2142/82156 2023-07-11 col_2142_5131 col_2142_11614 com_2142_5130 com_2142_11613 com_2142_8903

Miller, Gregory A. Stewart, Jennifer Lorraine 2015-09-25T20:39:23Z 2015-09-25T20:39:23Z 10000-01-01 2008 2008 Although models of emotion and motivation have focused on the relationship between anger and approach motivation associated with aggression (anger-out), anger is also related to withdrawal motivation (anger-in). Both anger styles are associated with psychopathology but could involve different mechanisms of cognition and emotion processing that could serve to maintain symptoms of depression and anxiety. The present study examined whether anger expression style predicted activation in brain regions involved in the implementation of cognitive control in two Stroop (color-word and emotion-word) tasks in participants with varying levels of comorbid depression and anxiety. Neural mechanisms involved in cognitive control were measured using functional magnetic resonance imaging (fMRI) as well as event-related potentials (ERPs). fMRI results indicated that anger-out was associated with greater left dorsolateral prefrontal cortex (DLPFC) activity than anger-in, evidence in support of the motivational model of emotion. Contrary to hypotheses, anger-out was not linked to cognitive control impairment. However, consistent with hypotheses, anger-in was associated with heightened activation in frontal and cingulate regions involved in conflict monitoring and behavioral inhibition. This exaggerated response was similar for neutral high-conflict stimuli and negatively valenced stimuli. Results suggest that anger is not a unitary construct and that anger suppression in particular appears to be linked to cognitive and emotional dysfunction. Made available in DSpace on 2015-09-25T20:39:23Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3314906.pdf: 3009051 bytes, checksum: 8ab091f14bbcef3230664edde682a396 (MD5) Previous issue date: 2008 Embargo set by: Seth Robbins for item 83437 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 239 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2008. http://hdl.handle.net/2142/82156 (MiAaPQ)AAI3314906 eng Biology, Neuroscience Cognitive Control as a Function of Anger Expression Style: A Combined ERP and fMRI Investigation text Psychology Psychology University of Illinois at Urbana-Champaign Dissertation Ph.D.