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- Disorders of Consciousness (2)
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Articles 1 - 4 of 4
Full-Text Articles in Medicine and Health Sciences
Amelioration Of Prenatal Alcohol Effects By Environmental Enrichment In A Mouse Model Of Fasd, Aniruddho Chokroborty-Hoque
Amelioration Of Prenatal Alcohol Effects By Environmental Enrichment In A Mouse Model Of Fasd, Aniruddho Chokroborty-Hoque
Electronic Thesis and Dissertation Repository
Maternal alcohol consumption during pregnancy results in a spectrum of behavioural and cognitive deficits collectively known as Fetal Alcohol Spectrum Disorders (FASD). Currently, little is know about if and how the external environment may modulate these deficits. I have used C57BL/6 mice to study this interaction between prenatal alcohol exposure and the postnatal environment. Alcohol exposure during synaptogenesis produces high levels of anxiety-like traits and decreased memory performance. Alcohol-exposed mice (and matched unexposed controls) were put in 'environmentally-enriched' conditions of voluntary exercise, physical activities and cognitive stimulation to ascertain the effects of a positive postnatal environment. The results show that …
A Diffusion Tensor Imaging Study Of Motor Fibre Path Integrity And Overt Responsiveness In Disorders Of Consciousness, Clara A. Stafford
A Diffusion Tensor Imaging Study Of Motor Fibre Path Integrity And Overt Responsiveness In Disorders Of Consciousness, Clara A. Stafford
Electronic Thesis and Dissertation Repository
This study investigated the relationship between motor thalamo-cortico-cerebellar fibre path integrity and overt responsiveness in patients with disorders of consciousness (DOC). Additionally, we investigated the potential of imaging these motor tracts at ultra-high fields. Study I and II aimed to map the white matter connections of motor execution fibres in DOC patients. Our results showed significant reductions in motor fibre path integrity across DOC diagnostic categories. Study III and IV aimed to develop a 7T MRI Diffusion Tensor Imaging (DTI) sequence. We optimized this sequence to image motor fibre paths in DOC patients. We concluded that, in healthy controls, probabilistic …
Cerebral Lactate Metabolism And Memory: Implications For Alzheimer's Disease, Richard Andrew Harris
Cerebral Lactate Metabolism And Memory: Implications For Alzheimer's Disease, Richard Andrew Harris
Electronic Thesis and Dissertation Repository
Alzheimer’s disease (AD) is a neurodegenerative disease characterized by amyloid plaques that are comprised of aggregated amyloid-beta peptides. These toxic proteins promote mitochondrial dysfunction and neuronal cell death. A shift in metabolism away from oxidative phosphorylation and toward aerobic glycolysis, with the concomitant production of lactate, affords neurons a survival advantage against amyloid-beta toxicity. Recent evidence now suggests that aerobic glycolysis in the brain plays a critical role in supporting synaptic plasticity, learning, and memory. However, the role of aerobic glycolysis and lactate metabolism in AD-mediated cognitive decline is unknown. My objective was to test the hypotheses that aerobic glycolysis …
Communicating Through A Brain-Computer Interface: Towards The Assessment Of Quality Of Life In Minimally Conscious And Covertly Aware Vegetative State Patients, Jasmine Tung
Electronic Thesis and Dissertation Repository
Neuroimaging has been utilized to establish communication, using a brain-computer interface, with select patients with severe brain injuries and profound communication impairments. Due to the severe injuries sustained by these patients, traditional techniques used to develop quality of life instruments cannot be used. The Aware Study used a novel approach to establish the key dimensions for assessing the quality of life of patients who can only communicate using this sophisticated technology. Consensus methodology was employed, with the assistance of a multidisciplinary panel of experts, to collectively decide which dimensions are essential for the inclusion in a quality of life instrument …