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 20 of 21 for “"Brain Anatomy"”.
-
Brain anatomy: investigations of the effects of aging, fitness, and arterial stiffness
… the mechanisms and lifestyle modifiers of brain anatomy throughout the aging process. First, a thorough review of the mechanisms of fitness on brain anatomy is presented. Next, a study examining the effects of aging and fitness on cortical and subcortical brain anatomy in a group of older …
-
Advancing Electrical Stimulation: Full-Head MRI Segmentation for Abnormal Brain Anatomy with tDCS
… stimulation targeting. This work focuses on brain regions involved in speech production to help restore motor function in the oral muscles.</p> <p>To optimize stimulation parameters and electrode placement, our laboratory developed ROAST (Realistic vOlumetric-Approach-based Simulator for …
-
The Giant Walkthrough Brain Project: Interactive Medical Education for the Individual, Classroom, and Beyond
… by Joseph Bogen's idea of the Giant Walkthrough Brain, this thesis discusses the creation of three innovative methods that allow us to visualize and explore human brain anatomy. First is the Giant Walkthrough Brain Show: a live virtual tour of a 3D brain museum in collaboration with science …
-
Surgical system for image-based stereotaxy in the rat
… apparatus for target determination in the brain of animals. Until now, the only stereotactic devices for directing problems and electrodes in animal brains for neuroscience are based on dental and ear canal fixation and on skull based features which are at best crudely related to brain …
-
Automated detection of multiple sclerosis lesions in magnetic resonance images of the human brain
… detection of multiple sclerosis lesions of the brain. The design was based on two objectives: (i) to evaluate the effectiveness of incorporating a priori knowledge of brain anatomy in the classification process, and (ii) to compare the statistical and symbolic approaches to machine learning. …
-
Using Poisson's Equation to Characterize Brain Tumor Shape
… anatomical volumes from images of the human brain. The shape characteristic curve is able to distinguish subtle differences in simple 2D and 3D phantoms as well as human brain anatomy. Such differences are difficult to quantify and often do not correlate to volume. Scale and translation …
-
Deep Learning for Brain Structural Connectivity Analysis: From Tissue Segmentation to Tractogram Alignment
… is a cornerstone in neuroimaging for studying brain anatomy and functions. Anatomical MRI images, such as T1-weighted (T1-w) scans, allow the non-invasive visualization of the brain tissues, enabling the investigation of the brain morphology and facilitating the diagnosis of both acquired …
-
Deep Learning Domain Adaptation in Brain MRI: Investigating Motion Mitigation in Adult and Neonatal Scans
… is a vital non-invasive tool for high-resolution brain imaging, yet its long acquisition time frequently results in patient movement leading to motion artifacts, particularly among non-compliant patients like newborns. While Deep Learning (DL) models have emerged as powerful retrospective …
-
Arterial Spin-labelled MRI Analyses to Advance Adolescent Bipolar Disorder Research and Clinical Applications
Cerebral blood flow (CBF) is foundational to brain function in health and disease. Through three distinct analyses, the aim of this thesis is to extend current understanding of CBF in adolescent bipolar disorder and to enable future understanding of CBF in other brain diseases. CBF measurement can …
-
Cognition in healthy aging and Parkinson's disease : structural and functional integrity of neural circuits
… aging and Parkinson's disease (PD) affect brain anatomy and physiology and how these neural changes relate to measures of cognition and perception. While healthy aging and PD are both accompanied by a wide-range of cognitive impairments, the neural underpinnings of cognitive decline in each …
-
Machine Learning for Tract Segmentation in dMRI data
… pathways of axons within the white matter of the brain as a set of streamlines, called tractography. A streamline is a vectorial representation of thousands of neuronal axons expressing structural connectivity. An important task is to group the same functional streamlines into one tract …
-
Some nerve tracts of the midbrain of Ictiobus urus (Agassiz)
Made available in DSpace on 2016-11-09T23:47:58Z (GMT). No. of bitstreams: 2 5957512_opt.pdf: 22487707 bytes, checksum: 7c275d4b14f90e4f58147123dcfa013e (MD5) license.txt: 4183 bytes, checksum: 1dcc2037833d76bede73d5717587543b (MD5) Previous issue date: 1895
-
Cerebrovascular influence on brain and cognitive aging
… system can result in severe adverse effects on brain health and cognitive aging. Recently, Fabiani et al., (2014) introduced a novel non-invasive approach of quantifying cerebrovascular health using diffuse optical imaging in a sample of older adults. This method is based on the estimation of …
-
Neuroanatomical differences in adults and children who stutter: a voxel-based morphometry study
… study reported on the neuroanatomical changes in brains of people who stutter from childhood to adulthood by descriptively comparing the results of the adult data and child data. Using the same dataset, the present study also attempted to replicate the comparisons in Chang et al. (2008) study. …
-
Can adults learn absolute pitch? Evaluating the “Melody Triggers” method
… between AP possessors and non-possessors in brain anatomy, brain function, neural oscillations, and the timing of brain activity. However, it is unsurprising that these groups process pitch differently, and the anatomical differences are likely attributable to learning-induced neuroplasticity …
-
Can Adults Learn Absolute Pitch? Evaluating the "Melody Triggers" Method
… between AP possessors and non-possessors in brain anatomy, brain function, neural oscillations, and the timing of brain activity. However, it is unsurprising that these groups process pitch differently, and the anatomical differences are likely attributable to learning-induced neuroplasticity …
-
COMPUTATIONAL SEGMENTATION OF WHITE MATTER ANATOMY: METHODS, INSIGHTS, AND STANDARDS
The brain is fundamentally an information processing and behavioral control system. The key to achieving this role is the ability to move information about the brain in a fast, reliable, and organized fashion. The axons of neurons stand as the primary means of achieving this in the brain. However, …
-
Mapping the Brain of the Clonal Raider Ant: Integrating Behavior, Neuroanatomy and Connectomics
… efforts to bridge the gap between behavior and brain function in hopes of uncovering the neural underpinnings of social behavior in <em>O. biroi</em>. To begin, I focused on studying alarm behavior, as identification of a pheromone that triggers a robust, consistent, and conserved behavior, like …
Page 1 of 2