Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 11 of 11 for “"Cortical Connectivity"”.
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Microstructural Abnormalities In Striatial And Medial-Temporal Tracts In Children With A History Of Early Severe Deprivation: A Diffusion Tensor Imaging Study
… patterns of frontal and/or medial-temporal cortical connectivity in internationally adopted children and if these patterns of cortical connectivity were related to specific white matter tract or behavioral differences. Based on theories of brain development, it was expected that …
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Structure-function relationship in hierarchical model of brain networks
… numerous neural elements and structured complex connectivity, one of the most complex systems in nature. Recently, large-scale corticocortical connectivities, both structural and functional, have received a great deal of research attention, especially using the approach of complex networks. Here, …
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Functional Connectivity of Entorhinal Cortex in Alzheimer's Disease
… results in widespread disruption of cortical connections. The entorhinal cortex (EC) is a region of cortical gray matter in the medial temporal lobe important in memory processing, and has been identified as the first structure affected in AD. The current study investigated the …
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EEG-Based Control of Working Memory Maintenance Using Closed-Loop Binaural Stimulation
… is essential to understand the properties of the connectivity network linking disparate parts of the brain used in complex cognitive processes, such as working memory. Working memory is the system in control of temporary retention and online organization of thoughts for successful goal directed …
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The Nature of Working Memory in Aphasia
… of either overlapping anatomy or widespread cortical changes post-insult. The purpose of this research was to disentangle these competing hypotheses with regards to working memory (WM) in adults with aphasia. Like other categories of cognitive impairment in this patient group, past research …
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Predicting Neurodevelopment in Very Preterm Infants Using Thalamic MRI Features and Machine Learning
… the thalamus is a crucial hub for regulating cortical connectivity. Moreover, severe brain injury in preterm infants can impact thalamic growth and maturation over the long term. Therefore, studying thalamus morphology during the neonatal period using magnetic resonance imaging (MRI) can help …
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Modeling Integrated Cortical Learning: Explorations of Cortical Map Development, Unit Selectivity, and Object Recognition
… of simple and complex cells within each cortical visual area. The Deep Convolutional Neural Networks (DCNN) architecture is the most computationally successful implementations of HTC, and has been adopted as a tool for linking cognition to neural processes. However, DCNNs are exceedingly …
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Inferring Undirected and Causally Directed Graph Structures from Multivariate Time Series
… we present a method to characterize functional connectivity between sites in the cerebral cortex of primates using a novel variation of undirected graph learning based on smoothness prior. In Part Two, we define and implement a novel spatiotemporal graph (STG) model for inferring causally …
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Lifestyle factors and neuroimaging metrics as predictors of cognitive performance in healthy aging
… differences in brain structure and functional connectivity to further our understanding of the neural mechanisms involved in age-related declines in cognition. This thesis also aimed to investigate the influence of lifestyle factors on age differences in cognition, and in that regard, I focused …
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Neurocircuitry of attention in methamphetamine induced psychosis: a comparison against schizophrenia patients and healthy controls
… to examine overlap and differences in 1) subcortical regulation of cortical inhibition and excitability, 2) resting state cortical and subcortical connectivity, and the dynamics of rhythmic neural activity between states, and 3) cortical-cortical connectivity using event related potential …
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Role of mGluR5 and FMRP in mouse primary somatosensory cortex
… to brain function. Development of this connectivity relies on activity-dependent modification of synapses similar to those that underlie learning and memory. Glutamate is the principal excitatory neurotransmitter in the mammalian brain and several brain disorders result from altered …