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.
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Showing 1 to 20 of 107 for “"Brain Networks"”.
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Self-Regulatory Brain Networks of Eating Behavior
… purpose of this thesis was to elucidate a brain network of self-regulatory failure among older adults predictive of real-world weight loss.
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Reliability of resting brain networks using FMRI
… focused on elaborating effects of resting state brain networks on task induced paradigm and to check consistency of these networks between different groups of populations. Recent studies have shown consistency of RSFC networks within same subjects with intra-site and intra-session variation. The …
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Functional Brain Networks Underlying Anticipation in Motivated Behavior
… and memory, and studies implicate reward-related brain circuitry. However, few studies have investigated the neural underpinnings of anticipation on a brain-wide network scale . In this set of experiments, I take an interdisciplinary cross-species approach, using in-vivo electrophysiology in mice …
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Effects of bipolar disorder on intrinsic brain networks
Introduction: Bipolar disorder (BD) is a brain network disorder that affects cognitive and emotional functioning, and is associated with prefrontal and/or limbic dysfunction. Functional Magnetic Resonance Imaging (fMRI) allows identification of intrinsic brain networks (IBN), like the default mode …
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Structure-function relationship in hierarchical model of brain networks
The mammalian brain is, with its 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 …
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Characterizing Connectivity in Brain Networks Using Magnetic Resonance Imaging
The human brain is a system of neurons that provides great computational capacity via a complicated communication network. A complete description of this network, also known as the human connectome, is an active topic of research as it would provide invaluable knowledge to cognitive neuroscience. …
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Age-Related Changes in Human Anatomical and Functional Brain Networks
… within and between intrinsic connectivity networks (ICNs) follow distinct lifespan trajectories. We further characterize these changes in terms of each ICN’s “modularity” and find that most ICNs become less modular (i.e. less segregated) with age. In anatomical networks we find that hub …
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Neural correlates of consciousness in the complexity of brain networks
… allowed neuroscientists to noninvasively map the brain’s functional interactions (or functional connectivity). Based on data obtained during controlled loss of consciousness and in cases of patients with disorders of consciousness, it has now been suggested that multiple, functionally …
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Combined Aerobic and Cognitive Training Effects on Complex Brain Networks in Older Adults
… powerful tool with which we can model the human brain as a complex network. Since the start of application of network science to the brain, many advances have been made. Due to this development of new metrics and network formation algorithms, the current study aimed to re-examine brain networks …
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Resting-State Functional Brain Networks in Bipolar Spectrum Disorder: A Graph Theoretical Investigation
… connectivity between frontal and limbic brain regions remains inconclusive, and is unable to adequately characterize global functional network dynamics. Graph theoretical analysis provides a framework for understanding the local and global connections of the brain and comparing these …
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Stochastic Actor-Oriented Models of Functional and Structural Human Brain Networks in Aging
The human brain is a complex and dynamical system that changes throughout the lifetime. Non-invasive imaging techniques, including magnetic resonance imaging (MRI), allow for the measurement of large-scale functional and structural connectivity networks in the brain. Beyond trends, the dynamics …
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Structural and Functional Properties of Social Brain Networks in Autism and Social Anxiety
… evidence for alterations within the same brain systems in SAD and ASD, as well as a behavioral continuum of social impairments, no study to date has examined what is unique and what is common to the brain systems within these disorders. Therefore, the primary aim of the current study is to …
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The influence and manipulation of resting-state brain networks in alcohol use disorder
… Some of the acute effects of alcohol on the brain, such as altering the decision-making and future thinking capacities, mirror the effects of chronic alcohol use. Therefore, interventions that can address these shortcomings may be useful for reducing the negative effects of alcohol use …
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Characterising disease-related and developmental changes in correlation-derived structural and functional brain networks
Human structural and functional brain architecture is increasingly studied by applying the mathematical framework of complex networks to data from magnetic resonance imaging. Connections (edges) in such brain networks are commonly constructed using correlations of features between pairs of brain …
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Insights into brain networks from functional MRI and graph analysis during and following attentional demand
The human brain is a highly flexible and adaptive information processing system that allows us to interact with our environment and to adjust behaviour to current task demands. However, if a task demand is high, the flexibility and capability of the brain to adapt is challenged. The studies of the …
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Advances in layer specific fMRI for the study of language, cognition and directed brain networks
Contains fulltext : 226483.pdf (Publisher’s version ) (Open Access)
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Altered Brain Networks In Patients with Psychogenic Non-Epileptic Seizures (PNES) Using Ultra High Field MRI
… they lack abnormal electrical discharges in the brain and have psychological underpinnings and causes. The gold standard of diagnosis is video-EEG which is not widely accessible, creating a poor prognosis for patients. Resting state functional magnetic resonance imaging can aid in the diagnosis …
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Development of human functional and structural brain networks in adolescence and its relevance to psychiatric disorders
The human brain undergoes various phases of active development during the lifespan. While these neurodevelopmental processes are fundamental to the emergence of new cognitive and social capacities, they also coincide with a period of increased risk of neuropsychiatric disorders, which generally …
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