Navigating a Strange World: The Neuroimaging Study of Brain-Environment Interactions

dc.contributor.advisorZhang, Yingchun
dc.contributor.committeeMemberGrossman, Robert G.
dc.contributor.committeeMemberInce, Nuri F.
dc.contributor.committeeMemberFrancis, Joseph T.
dc.contributor.committeeMemberContreras-Vidal, Jose L.
dc.creatorPotter, Thomas
dc.date.accessioned2021-08-06T19:53:47Z
dc.date.createdMay 2020
dc.date.issued2020-05
dc.date.submittedMay 2020
dc.date.updated2021-08-06T19:53:49Z
dc.description.abstractThe field of neuroscience seeks to understand the nervous system, its components, and its mechanisms. One particularly challenging aspect of this is investigating the cortical mechanisms that support perception, cognition, and behavior. The subject-specific nature of responses and the need to construct contextually-flexible actions complicate even simple behaviors. Further, observing the cortical activity as an individual coordinates a response can pose a prohibitive challenge due to the inherent risks of direct, invasive signal acquisition. The advent of noninvasive neuroimaging approaches as sought to resolve this problem, with electroencephalography (EEG) and functional Magnetic Resonance Imaging (fMRI) emerging as the predominant methods thanks to their respective advantages in temporal and spatial resolution. Unimodal and multimodal source localization techniques that combine these methods have been further developed to capitalize on these respective advantages. Applying these techniques, we have investigated the cortical processes of audition and motor actuation, revealing electrophysiological dynamics that support effective stimulus response. Further developments in the field of multimodal integration, developed and presented here in the form of a novel multimodal integration technique known as the Dynamic Brain Transition Network approach, have improved resilience to the problems of volume conduction and depth bias. The heightened spatiotemporal detection of this method have then formed a basis for investigating complex emotional perception and regulation, supporting advanced analysis of inter-regional cortical communication. The present dissertation seeks out outline new discoveries of how the brain interacts with external stimuli and the new technological developments that enable this search.
dc.description.departmentBiomedical Engineering, Department of
dc.format.digitalOriginborn digital
dc.format.mimetypeapplication/pdf
dc.identifier.citationPortions of this document appear in: Potter, Thomas, Sheng Li, Thinh Nguyen, Trac Nguyen, Nuri Ince, and Yingchun Zhang. "Characterization of volume-based changes in cortical auditory evoked potentials and prepulse inhibition." Scientific reports 7, no. 1 (2017): 1-9.
dc.identifier.urihttps://hdl.handle.net/10657/8032
dc.language.isoeng
dc.rightsThe author of this work is the copyright owner. UH Libraries and the Texas Digital Library have their permission to store and provide access to this work. UH Libraries has secured permission to reproduce any and all previously published materials contained in the work. Further transmission, reproduction, or presentation of this work is prohibited except with permission of the author(s).
dc.subjectEEG
dc.subjectfMRI
dc.subjectNeuroimaging
dc.subjectSource Localization
dc.subjectMultimodal
dc.subjectMotor
dc.subjectAuditory
dc.subjectEvent Related Potential
dc.subjectEmotion.
dc.titleNavigating a Strange World: The Neuroimaging Study of Brain-Environment Interactions
dc.type.dcmiText
dc.type.genreThesis
local.embargo.lift2022-05-01
local.embargo.terms2022-05-01
thesis.degree.collegeCullen College of Engineering
thesis.degree.departmentBiomedical Engineering, Department of
thesis.degree.disciplineBiomedical Engineering
thesis.degree.grantorUniversity of Houston
thesis.degree.levelDoctoral
thesis.degree.nameDoctor of Philosophy

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