Dien, JosephO'Hare, Aminda Jo2009-02-022009-02-022007-12-202007http://dissertations.umi.com/ku:2273https://hdl.handle.net/1808/4371Within the framework of the dual-anxiety model, electroencephalographic (EEG) recordings have argued that types of anxiety can be differentiated behaviorally, cognitively, and in brain laterality (Heller, et al, 1997). Additionally, one event-related potential (ERP) investigation found a left-lateralized N2 component associated with anxious apprehension (worry) and a right-lateralized P1r component associated with anxious arousal (fear/panic) (Dien, 1999). This study attempts to provide further support for the lateralization of these two types of anxiety. High-density ERPs were recorded from 58 participants who completed the STAI and FSS as measures of trait anxiety and stress. They also performed a spatial cueing task where emotional face cues were presented laterally followed by validly or invalidly cued shape targets. A temporo-spatial PCA revealed a right-lateralized posterior component (P296) that was greatest in amplitude for high on the FSS scores. This finding supports the idea that stress (anxious arousal) can be right lateralized.71 pagesENThis item is protected by copyright and unless otherwise specified the copyright of this thesis/dissertation is held by the author.Cognitive psychologyAnxietyDual-anxiety modelEvent-related potentialsFear survey scheduleLateralityIndividual differencesThesishttps://orcid.org/0000-0002-9802-059XopenAccess