Neural mechanisms underlying individual differences in daily psychological experiences and cortisol activity

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dc.contributor.advisorFagundes, Christopher P
dc.creatorChung, E-Lim Lydia Wu
dc.date.accessioned2022-09-23T18:14:13Z
dc.date.available2022-09-23T18:14:13Z
dc.date.created2022-08
dc.date.issued2022-08-08
dc.date.submittedAugust 2022
dc.date.updated2022-09-23T18:14:14Z
dc.description.abstractCortisol, a stress hormone released from the hypothalamic-pituitary-adrenal (HPA) axis during stress, supports many vital bodily functions. Individual differences in cortisol patterns exist, and neural patterns underlying appraisal processes may contribute to these differences. In this project, I examined whether neural activation patterns to affective stimuli can explain interindividual differences in daily negative experiences and daily cortisol patterns. The analytic sample included participants from the MIDUS-2 dataset who completed an fMRI session, daily interviews, and cortisol assessments. Neural activation patterns to negative stimuli were generally unrelated to daily cortisol levels. Amygdala and dorsal PFC activity toward negative stimuli were positively related to negative psychological experiences and negatively related to positive psychological experiences. The relationship between daily psychological experiences and daily cortisol output depended on prefrontal, limbic, and paralimbic activity to negative stimuli. This study enhances our understanding of the neural mechanisms that underlie interindividual differences in daily psychobiological experiences.
dc.format.mimetypeapplication/pdf
dc.identifier.citationChung, E-Lim Lydia Wu. "Neural mechanisms underlying individual differences in daily psychological experiences and cortisol activity." (2022) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/113263">https://hdl.handle.net/1911/113263</a>.
dc.identifier.urihttps://hdl.handle.net/1911/113263
dc.language.isoeng
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
dc.subjectstress
dc.subjectcortisol
dc.subjectaffective neuroscience
dc.subjectnegative affect
dc.subjectpositive affect
dc.subjectprefrontal cortex
dc.subjectlimbic
dc.subjectpsychobiological synchronization
dc.subjectmultivariate pattern analysis
dc.subjectbayesian
dc.titleNeural mechanisms underlying individual differences in daily psychological experiences and cortisol activity
dc.typeThesis
dc.type.materialText
thesis.degree.departmentPsychology
thesis.degree.disciplineSocial Sciences
thesis.degree.grantorRice University
thesis.degree.levelMasters
thesis.degree.nameMaster of Arts
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