Theses - Graduate Program in Neuroscience
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Task difficulty and expertise mediate the effects of roving on perceptual performance
(Bilkent University, 2019-02)Experience-dependent improvement of perception, known as perceptual learning, is possible in the absence of feedback, but feedback enables faster progress as demonstrated by both unsupervised and supervised learning ... -
EEG correlates of audiovisual associations in motion perception
(Bilkent University, 2018-12)The process of associative learning has been considered to be one of the promising research areas in neuroscience to understand human perception, sensory plasticity, and multisensory integration that affects the way of ... -
Reciprocal influences of interpretation and attentional biases to health-related information
(Bilkent University, 2018-10)Cognitive processing biases to health-related information have been endorsed to be present in patients who are su ering from medical diseases. Attentional bias is one of the cognitive processes which facilitates the ... -
The role of contrast and size in motion perception: behavioral and neuroimaging study of center-surround interactions in primary visual cortex (V1) and middle temporal area (MT+)
(Bilkent University, 2018-10)Behavioral experiments have demonstrated that observers' ability to discriminate the drift direction of a grating improves as its size increases if the grating has a low contrast, and deteriorates if it has a high contrast ... -
Co-expression pairs and modules (CoEX-PM): a shiny application and an example case study on chromogranins
(Bilkent University, 2018-09)Gene expression signatures have been proved to be effective biomarkers of tumorigenesis and metastasis especially when alternative methods are inconvenient or ineffective. Nevertheless, handling very large datasets obtained ... -
Arithmetic and temporal transformations of working memory activation in subjects prone to psychosis
(Bilkent University, 2018-09)Working memory (WM) deficit is a well-studied cognitive impairment in psychosis which is stemming from various developmental abnormalities containing neurobiological heterogeneity. Recently, many studies have concluded ... -
Analysis of movement disorder-related genes following knockdowns of ANO10, WDR81, and VLDLR in zebrafish (DANIO RERIO)
(Bilkent University, 2018-07)Movement Disorders are the neurological symptoms that cause alterations in normal motility, posture and muscle tone. Certain brain areas, such as the cerebellum, mediate correct motor control and functioning. When defects ... -
Genetic influences on cortical structure and function
(Bilkent University, 2018-07)Structure and function of the human central nervous system is determined by both genetic and environmental in uences. One of the fundamental quests in neuroscience studies is to determine to what degree each of these ... -
The effect of context-dependent lightness on contrast detection and identification, and its neural correlates
(Bilkent University, 2017-11)Perceived contrast of a grating varies with its background (or mean) luminance: of the two gratings with the same photometric contrast the one on higher luminance background appears to have higher contrast. On the other ... -
Haptic and visual dimensions of perceived softness
(Bilkent University, 2017-10)Exploring the environment with our senses is a prerequisite to successfully and efficiently interact with it. Our senses provide information about what material objects and surfaces are made of and help us to stay clear ... -
Development of bioactive peptide nanofibers for intervertebral disc regeneration
(Bilkent University, 2017-08)Lower back pain (LBP) and neck problems are the most common orthopedic diseases worldwide, and the main reason behind LBP is intervertebral disc degeneration (IVDD). Therefore, specialized therapeutic applications to induce ... -
Investigation of spontaneous differentiation of neural stem cells on synthetic scaffolds
(Bilkent University, 2017-08)Despite the increasing incidents of brain injuries and neurodegenerative diseases, a definitive clinical therapy for these conditions has not been found yet. Nervous system injuries result in loss of neural cells, causing ... -
Identification and characterization of exonic variants related with familial essential tremor
(Bilkent University, 2017-07)Essential tremor (ET) is the most common movement disorder in humans. Despite its high heritability and frequency, the genetic basis and pathophysiology of ET is not well understood. In this study, whole exome sequencing ... -
Investigating the effects of bioactive peptide nanofibers on the growth and differentiation behaviour of nervous system cells
(Bilkent University, 2017-08)Peripheral nerve regeneration is a tightly regulated process that entails the degeneration, proliferation, alignment and remyelination of Schwann cells. Tuning the bioactivity is important to support all of these processes ... -
Age and gender alter synaptic proteins in zebrafish (Danio Rerio) models of normal and delayed aging
(Bilkent University, 2017-07)Cognitive decline occurs during normal aging in some specific domains of cognitive abilities including but not limited to episodic memory, divided attention and executive functions, however, it is not a unitary decline ... -
Eliciting immune response by using nanostructures
(Bilkent University, 2017-07)The ability of dendritic cells to coordinate innate and adaptive immune responses makes them essential targets for vaccination strategies. Presentation of specific antigens by dendritic cells is required for the activation ... -
Alterations in the molecular properties of neural stem cells from aged brains and brain tumors
(Bilkent University, 2017-07)It is known that new neuron formation in the brain continues throughout the life of an organism. In the adult human brain, it was proven that neurogenesis in the hippocampus is higher than expected, almost 700 new neurons ... -
Behavioral display of lumbar curvature in response to the opposite sex
(Bilkent University, 2017-06)The aim of this thesis was to investigate the hypothesis that women adjust their lumbar curvature to approach the suggested biomechanical optimum of 45.5 degrees in response to the presence of an attractive member of the ... -
The effect of task on cue usefulness for visual scene classification
(Bilkent University, 2017-06)Detecting objects in the environment is one of the most fundamental functions of the visual system. Humans are highly effective at this, and past studies have shown that we can process things like whether or not an animal ... -
A self assembled nanofibrous structure as a novel vaccine adjuvant
(Bilkent University, 2017-02)Vaccination is the most effective and cost-efficient way of protection against the major infectious diseases but ideal vaccine formulation has not been found. Recent vaccine systems are mainly composed of two major substitutes ...
