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

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dc.contributor.advisorFagundes, Christopher Pen_US
dc.creatorChung, E-Lim Lydia Wuen_US
dc.date.accessioned2022-09-23T18:14:13Zen_US
dc.date.available2022-09-23T18:14:13Zen_US
dc.date.created2022-08en_US
dc.date.issued2022-08-08en_US
dc.date.submittedAugust 2022en_US
dc.date.updated2022-09-23T18:14:14Zen_US
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.en_US
dc.format.mimetypeapplication/pdfen_US
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>.en_US
dc.identifier.urihttps://hdl.handle.net/1911/113263en_US
dc.language.isoengen_US
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.en_US
dc.subjectstressen_US
dc.subjectcortisolen_US
dc.subjectaffective neuroscienceen_US
dc.subjectnegative affecten_US
dc.subjectpositive affecten_US
dc.subjectprefrontal cortexen_US
dc.subjectlimbicen_US
dc.subjectpsychobiological synchronizationen_US
dc.subjectmultivariate pattern analysisen_US
dc.subjectbayesianen_US
dc.titleNeural mechanisms underlying individual differences in daily psychological experiences and cortisol activityen_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentPsychologyen_US
thesis.degree.disciplineSocial Sciencesen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Artsen_US
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