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Skip to Search Results- 1Arvanitidis, Anastasia P
- 1Bertrand, Jennifer K
- 1Budd, Alexandra
- 1Connor, Steven
- 1Cruikshank, Leanna C
- 1Engin, Elif
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Characterisation of the sleep-related slow oscillation in the neocortical - entorhinal - hippocampal bidirectional circuit
DownloadFall 2009
Our ability to recall information and events is astounding and dependent on the medial temporal lobe (MTL) memory system. The synaptic interconnections between the neocortex (nCTX), entorhinal cortex (EC), and hippocampus (HPC) are the anatomical basis of this memory system. The...
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Spring 2016
Hippocampal activity is characterized by two state-dependent, mutually exclusive large-amplitude oscillations: theta (3-12 Hz) and the hippocampal slow oscillation (SO; ~1 Hz). These two rhythms have been implicated in different stages of memory processing. Theta occurs during awake exploratory...
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Correlation of Subregional Hippocampal Thickness Abnormalities with Positron Emission Tomography Phosphorylated Tau Measurements in Patients with Mild Cognitive Impairment and Alzheimer's Disease
DownloadFall 2023
Alzheimer’s disease (AD) is the most common cause of dementia and is an emerging public health crisis with 150 million cases projected globally by 2050. Biomarkers are playing an emerging role in AD research - however, existing biomarkers have substantial limitations. Magnetic Resonance Imaging...
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Fall 2017
Perception is to sensation what illusion is to the actual state of the world. How we sense information varies greatly from how we ultimately perceive and understand that information - a result of top-down and bottom-up processes at work. Work from over 100 years ago (Brucke, 1864) found an...
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Fall 2016
Oscillations are a fundamental principle of neural operation, organized into a hierarchy of frequency bands with the dominant rhythm alternating within and across behavioral states. During states of sleep and anesthesia, brain activity in forebrain regions displays two major distinct activity...
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Hippocampal Diffusion Tensor Imaging in Parkinson's Disease and Associations with Non- Motor Symptoms
DownloadSpring 2023
Parkinson’s disease (PD) is the second most common neurodegenerative disorder and causes not only well-characterised motor symptoms, but also a host of non-motor symptoms that greatly impact quality of life. PD exists within a larger spectrum of disorders caused by the accumulation of Lewy bodies...
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Hippocampal neuroplasticity and neurogenesis in major depressive disorder: a high field MRI study
DownloadFall 2012
The hippocampus is a brain structure responsible for memory, learning, and the stress response; it is also used as a model for major depressive disorder (MDD) in preclinical studies. Preclinical models have shown that the hippocampal subfields are differentially affected by chronic stress....
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Investigating Human Brain Function and Human Brain Organization Using Functional Magnetic Resonance Imaging at 4.7 T
DownloadFall 2020
Understanding the brain-cognition association has been a major goal of neuroscientists for more than 50 years. The discovery of functional magnetic resonance imaging (fMRI) blood-oxygen-level-dependent (BOLD) contrast by Ogawa and colleagues (1990, 1992) has fundamentally transformed the field of...
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Fall 2019
Acquisition and storage of episodic-like information fundamentally contributes to quality of life. It is the type of information that allows us to remember meaningful events such as our graduation and our heartaches. The memory of these events allows us to adapt our behaviours to facilitate more...
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Modulation of Spontaneous Neural Network Bursting in Newborn Rat Brain Slices by Extracellular Calcium, Methylxanthines, and Opioids
DownloadFall 2012
Spontaneous neuronal bursting appears to be pivotal for brain maturation. This thesis studied such synchronized neural network oscillations in immature newborn rat hippocampus, cortex, and locus coeruleus. For this, horizontal brain slices were generated for (simultaneous) suction electrode...