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- Description:
- Protein homeostasis, or proteostasis, is essential for preserving all cellular functions and involves a balance of protein synthesis, folding, trafficking, and degradation. A collapse in proteostasis is a common feature of many neurodegenerative disorders that are characterized by the accumulation of insoluble protein aggregates in the brain. Parkinson’s disease (PD)...
- Keyword:
- induced pluripotent stem cell models, ER stress, protein aggregation, protein folding, and lysosomal dysfunction
- Subject:
- Molecular biology and Neurosciences
- Creator:
- Stojkovska, Iva
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/02/2022
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_850723 and http://dissertations.umi.com/northwestern:15793
-
- Description:
- Classical conditioning is a form of associative learning and can be used as a behavioral paradigm to model and investigate the neural mechanisms underlying associative learning. In this work, classical conditioning paradigms are used to test the effectiveness of a disease model on the impact of learning and emotional regulation...
- Keyword:
- Memory, Persistent Firing, Entorhinal Cortex, Aging, Learning, and Postburst Afterhyperpolarization
- Subject:
- Neurosciences
- Creator:
- Lin, Carmen
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15321 and etdadmin_upload_770003
-
- Description:
- Findings in both humans and animal models have associated the hippocampal theta oscillation with hippocampal memory function. In animal models, previous research supports that the theta oscillation contributes to memory via phase-dependent changes in hippocampal network connectivity, wherein memory encoding versus retrieval are optimized at different phases of the theta...
- Keyword:
- oscillation, hippocampus, phase, TMS, theta, and intracranial
- Subject:
- Neurosciences
- Creator:
- Lurie, Sarah M
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 03/24/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_956997 and http://dissertations.umi.com/northwestern:16394
-
- Description:
- Inter-organelle contact sites have become increasingly appreciated as important regulators of cellular homeostasis, and disruption of inter-organelle contact site dynamics and function has been observed in various pathologies. Recently, inter-organelle contact sites between mitochondria and lysosomes were discovered, offering a new mechanism by which these two organelles may directly interact,...
- Keyword:
- Imaging, Contact Sites, Lysosome, Mitochondria, Neurological Disease, and Calcium
- Subject:
- Biology, Medicine, and Neurosciences
- Creator:
- Peng, Wesley J
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 10/07/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15610 and etdadmin_upload_827420
-
- Description:
- The retina detects light, processes the visual signal, and sends a complex set of parallel information channels to the brain via a functionally diverse set of retinal ganglion cells types. This manuscript examines these retinal ganglion cell types, the visual features they encode, and the computational mechanisms leading to their...
- Keyword:
- electrophysiology, computational, signal processing, Bipolar cell, Retina, and ganglion cell
- Subject:
- Ophthalmology and Neurosciences
- Creator:
- Swygart, David Isaiah
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 05/31/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_962145 and http://dissertations.umi.com/northwestern:16411
-
- Description:
- In mature neurons, postsynaptic NMDARs are segregated into two populations, synaptic and extrasynaptic NMDARs, which differ in localization, function, and associated intracellular cascades. These two pools are connected via lateral diffusion, and receptor exchange between them modulates synaptic NMDAR content (NMDAR-plasticity). Here, we identify the phosphorylation of the PDZ-ligand of...
- Keyword:
- NMDAR, NMDAR-plasticity, Extrasynaptic NMDAR, GluN2B, and PP1
- Subject:
- Pharmacology and Neurosciences
- Creator:
- Chiu, Andrew Michael
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_669024 and http://dissertations.umi.com/northwestern:14717
-
Gaze and Gait: How Motor Learning and Concussive Injury Change Where We Look and Our Visual Reliance
- Description:
- Visual information plays a critical role in controlling movement. People use visual information to plan future actions and correct current actions through feedforward and feedback processes, respectively. We can gain insights into these visually guided motor control processes by quantifying where people look during movement and measuring how much they...
- Keyword:
- Motor Learning, Gaze Behavior, Concussion, Visual Reliance, Fixation Distance, and Gait
- Subject:
- Physical therapy and Neurosciences
- Creator:
- Cates, Alexander Thomas
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 08/23/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_1013436 and http://dissertations.umi.com/northwestern:16741
-
Peripheral Neural Representations of Naturalistic Tactile Stimuli in the Vibrissal-Trigeminal System
- Description:
- Many species of rodents rely on the set of exquisitely sensitive facial vibrissae (whiskers) to guide rich behaviors in which other senses are inadequate. Although whiskers are, like all hairs, inert strands of keratin, they provide the animal with a rich landscape of tactile information which is used to guide...
- Keyword:
- Mechanics, Afferent, Vibrissal, Trigeminal, and Whisker
- Subject:
- Neurosciences
- Creator:
- Bush, Nicholas E
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:14697 and etdadmin_upload_666783
-
- Description:
- Contactin associated protein like 2 (CNTNAP2) has emerged as a prominent susceptibility gene implicated in multiple complex neurodevelopmental disorders, including autism spectrum disorders (ASD), intellectual disability (ID), and schizophrenia (SCZ). The presence of seizure comorbidity in many of these cases, as well as inhibitory neuron dysfunction in Cntnap2 knockout (KO)...
- Keyword:
- Epilepsy, Dendrites, Autism, CASK, CNTNAP2, and Interneurons
- Subject:
- Physiology, Molecular biology, and Neurosciences
- Creator:
- Gao, Ruoqi
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2018-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:14243 and etdadmin_upload_595693
-
- Description:
- Over the course of disease progression, half of adults with type II diabetes also develop diabetic peripheral neuropathy (DPN), peripheral nerve damage precipitated by the downstream metabolic effects of hyperglycemia, insulin resistance, and dyslipidemia. This multifactorial pathogenesis of DPN leads to various structural and physiological changes within the nerve, ultimately...
- Keyword:
- Diabetic neuropathy, Diagnostic medicine, Peripheral nerve, Mechanical properties, Shear wave elastography, and Ultrasound
- Subject:
- Neurosciences
- Creator:
- Rugel, Chelsea Lynne
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 09/22/2022
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_927674 and http://dissertations.umi.com/northwestern:16229
-
- Description:
- Perturbations to the physiology or impairments in the formation of synapses within the cochlea, specifically the ribbon synapses, result in decreased sensitivity to auditory stimuli. In example, prolonged exposure to moderately intense auditory stimuli, like power tools, can result in the swelling of nerve terminals, retraction of the postsynaptic membrane,...
- Keyword:
- Hearing, Neuroligins, Proteomics, Ribbon Synapse, ASD, and NIHL
- Subject:
- Neurosciences
- Creator:
- Ramirez, Miguel Angel
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 09/22/2022
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16120 and etdadmin_upload_909763
-
- Description:
- Motor planning is fundamental to the performance of everyday reaching movements. The influence of planning is not limited to voluntary movements but extends to involuntary movements initiated in response to sensory stimuli, such as postural perturbations applied to the arm. Stroke alters voluntary reaching and the involuntary response to perturbations,...
- Keyword:
- Startle, Stroke, Motor Planning, and Reaching
- Subject:
- Biomedical engineering and Neurosciences
- Creator:
- Heckman, Rosalind Lauren
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2018-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_625731 and http://dissertations.umi.com/northwestern:14442
-
- Description:
- Numerous insights into the sensorimotor systems that guide the control of voice have been garnered by observing how the system responds to manipulations of its auditory feedback. However, current approaches may be limited in the exploration of more complex parameters of volitional and adaptive voice control due to their limited...
- Keyword:
- Auditory Feedback, Sensorimotor Neuroscience, Systems and Cognitive Neuroscience, Speech Motor Control, Attention and Working Memory, and Vocal Control
- Subject:
- Cognitive psychology and Neurosciences
- Creator:
- Kim, Jason H
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/22/2022
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15952 and etdadmin_upload_882078
-
- Description:
- Background: Glioblastoma (GBM) tumors are the most malignant brain cancers and are characterized as Grade IV astrocytomas by the World Health Organization. GBM tumors can be classified into three molecular subtypes known as proneural, classical, and mesenchymal. In addition, GBM tumors also have a small population of cells known as...
- Keyword:
- LY6K, Methylation, Glioblastoma, ERK1/2, and CAV-1
- Subject:
- Molecular biology, Oncology, and Neurosciences
- Creator:
- Sastry, Namratha G
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 01/21/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_733180 and http://dissertations.umi.com/northwestern:15049
-
- Description:
- Involuntary motor activities such as spasms arise from hyperreflexia in about 70% of individuals with spinal cord injuries (SCI). Despite this prevalence and the negative impact on health and safety, it is unclear what determines the severity of the spasms that develop. This study investigated the impact of injury severity...
- Keyword:
- Movement Disorder, Spinal Cord Injury, and Serotonin
- Subject:
- Physiology, Biology, and Neurosciences
- Creator:
- Shelton, Owen Adio
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 05/31/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16444 and etdadmin_upload_970159
-
- Description:
- Episodic memory provides a means by which we reflect on the past, make decisions about the future, and form a learned identity. Episodic memory depends on the hippocampus as well as on the distributed set of regions that form a hippocampal-cortical network (HCN), including medial prefrontal, posterior cingulate, and medial...
- Keyword:
- memory, hippocampus, brain network, and stimulation
- Subject:
- Neurosciences
- Creator:
- Warren, Kristen N
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 04/29/2020
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:14985 and etdadmin_upload_717587
-
- Description:
- In the vertebrate retina, neurons process visual signals, generating feature selectivity in their activity levels. We use computational models to understand these behaviors by interpreting them mathematically. One component of this analysis is the spatial selectivity or receptive field, a property found in all visual sensory neurons. The neurons found...
- Keyword:
- Vision, Neuron, and Retina
- Subject:
- Neurosciences
- Creator:
- Cooler, Sam
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 04/15/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15450 and etdadmin_upload_792568
-
- Description:
- Navigating through the world is typically a multisensory experience. Mammals are believed to navigate using a cognitive map of space stored in the hippocampus. Yet, it is unclear how and whether spatial information of different sensory modalities can contribute to this map. A major barrier to addressing this question has...
- Keyword:
- Vision, 2-photon calcium imaging, Spatial perception, Olfaction, Smellevision, and Spatial cognition
- Subject:
- Cognitive psychology, Behavioral sciences, and Neurosciences
- Creator:
- Radvansky, Brad Allen
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15322 and etdadmin_upload_770028
-
- Description:
- Astrocytes are the most abundant cell type in the brain, yet the mechanisms involved in astrocyte differentiation and the level of astrocyte heterogeneity in the CNS, particularly in the human cortex, is largely unknown due to the lack of subtype-specific astrocyte markers and inaccessibility of human brain tissue. Here we...
- Keyword:
- Glioblastoma, Stem cells, and Astrocyte
- Subject:
- Neurosciences
- Creator:
- Van Gulden, Stephanie
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/28/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15549 and etdadmin_upload_817717
-
- Description:
- Neurodegenerative diseases (NDs) commonly involve the accumulation and aggregation of neurotoxic proteins that impair and ultimately destroy specific neurons. Considerable evidence from human and animal studies indicates that many NDs show disrupted circadian and sleep as symptoms. Yet little is known about the molecular mechanisms by which genes cause NDs...
- Keyword:
- genetic screen, neurodegeneration, Huntington’s disease, and circadian
- Subject:
- Biology and Neurosciences
- Creator:
- Xu, Fangke
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:14655 and etdadmin_upload_662687