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dc.contributor.authorFrank, David Witt
dc.date.accessioned2014-03-04T20:38:43Z
dc.date.available2014-03-04T20:38:43Z
dc.date.issued2012-12
dc.identifier.otherfrank_david_w_201212_ms
dc.identifier.urihttp://purl.galileo.usg.edu/uga_etd/frank_david_w_201212_ms
dc.identifier.urihttp://hdl.handle.net/10724/28520
dc.description.abstractResearch suggests that human emotional discrimination is initiated through an interaction of inferotemporal cortex (IT) and amygdala that then modulates activity across the visual system. However, the temporal dynamics of activity in these downstream regions is unclear. Fast sampled functional magnetic resonance imaging (fMRI) was used to investigate the timing of emotional discrimination in amygdala and IT relative to frontoparietal structures, including frontal eye fields (FEF) and intraparietal sulcus (IPS). A subset of subjects also participated in an electrocortical recording session to enable a comparison of middle and late emotional-modulated event related potentials (ERP) with the fMRI data. Amygdala and IT differentiated emotional from neutral scenes prior to IPS and FEF. Correlations were found between hemodynamic and late ERP modulation across stimulus pleasantness and semantic categories. These data suggest that visual emotional information may be registered in a ventral network, and distributed to dorsal attention structures thereafter.
dc.languageeng
dc.publisheruga
dc.rightspublic
dc.subjectEmotion
dc.subjectfrontal eye fields
dc.subjectintraparietal sulcus
dc.subjectamygdala
dc.subjectinferotemporal cortex
dc.subjectLPP
dc.subjectEPN
dc.subjectfMRI
dc.subjectEEG
dc.titleAffective modulation of scene perception
dc.title.alternativehemodynamic and electrocortical relationships
dc.typeThesis
dc.description.degreeMS
dc.description.departmentPsychology
dc.description.majorPsychology
dc.description.advisorDean Sabatinelli
dc.description.committeeDean Sabatinelli
dc.description.committeeStephen Miller
dc.description.committeeJennifer McDowell


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