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 17 of 17 for “"place learning"”.
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An Analysis Of Virtual Place Learning/navigation In Children And Young Adults Prenatally Exposed To Alcohol
<p>Fetal alcohol spectrum disorder refers to the spectrum of disorders resulting from prenatal alcohol exposure and is the leading cause of preventable mental retardation. Rodent studies have found that prenatal alcohol exposure impairs performance on the Morris water maze. This task requires the …
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Parietal dysfunction in children with prenatal alcohol exposure
… symbolic and nonsymbolic number processing, and place learning in a virtual environment. These functional domains were investigated using tasks of proximity judgment and exact addition to assess neural correlates of symbolic number processing in 65 children (mean age ± SD = 9.45 ± 0.42 years), …
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Contributions of Motility to Large-scale Search and Navigation
… a series of experiments that interrogate place learning and probabilistic cueing on both desktop PC and immersive virtual reality (VR) platforms. Chapter 2 reports the development of a novel place learning task based on the Blue Velvet Arena task (BVA; Kalová, 2005) for both immersive VR …
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Estradiol Has Distinct Effects on the Hippocampal and Striatal Memory Systems
… of estradiol in the hippocampus to enhance place learning and in the striatum to impair response learning. By altering the responsiveness of hippocampal and striatal cells to experience, estradiol biases the type of information obtained, resulting in enhanced or impaired learning depending …
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The role of attention in spatial (dis)orientation of older adults.
… changes are declines in landmark-based place and route learning, which are the focus of this project. The work presented in this thesis seeks to enhance our understanding of the cognitive mechanisms which contribute to declining navigation ability, with a particular emphasis on …
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The effects of cholinergic and dopaminergic neurons on hippocampal learning and memory processes
… to better understand how different aspects of learning and memory are modulated by these neuromodulatory systems. Using optogenetic stimulation or silencing, this thesis aims to investigate the effects of cholinergic and dopaminergic modulation on various hippocamal learning and memory …
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Future Earth Catalog : urban design in climate change
… both in process and product, in order to place learning and practice into an unfamiliar territory and form a new dynamic with climate change. This is a work in progress, to see the full project please visit www.futureearthcatalog.com.
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Acetylcholine Regulation of the Hippocampus and Striatum During Learning
… activity in the hippocampus regulates place learning, (b) cholinergic activity in the striatum regulates response learning and (c) cholinergic activity in one structure regulates competitive interactions with the other. To this end, rats were tested in tasks in which acquisition of …
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Region-specific Mechanisms of Estrogen and Age on Neuronal Ensemble Activity During Spatial Navigation
… The presence of circulating estradiol enhances learning on tasks that require the use of a hippocampus-dependent place strategy and impairs learning on tasks that require the use of a dorsal striatum-dependent response strategy. When either strategy may be used successfully, estradiol biases …
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The effects of caffeine on learning and locomotor behavior in the honey bee (Apis mellifera)
Caffeine affects learning and memory in several different species, including the honey bee, Apis mellifera. The purpose of this research was to (1) ask if caffeine could enhance the ability of honey bees to learn a task involving foraging in their natural environment and (2) test for effects of …
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Being in the right place at the right time : time of day discrimination by pigeons, Columba Livia
… In Experiment 1, food was available at one place (pecking key) in the mornings and at a different place in the afternoons. Although the length of time between sessions was much greater than in previous studies (e.g., Wilkie & Willson, 1992), all subjects appeared to demonstrate time-place …
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Social media adoption by microbusinesses
… needed to focus on concrete experience, work-place learning and personal knowledge for learning to use social media. Usefulness arising from improved communication, fitness and medium richness was the dominant indicator for acceptance and use. Continued use relied on satisfaction and habit of …
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Ovarian Hormone Modulation of Learning Strategy Preferences: A Role for Hippocampal Disinhibition
… are related to use of the hippocampus-sensitive place learning strategy whereas low hormone levels are related to use of the striatum-sensitive response strategy. Other studies demonstrate that estrogen suppresses hippocampal GABAergic function and that progesterone's agonistic actions at GABAA …
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Dose-Response Effects of Lithium on Spatial Memory in the Black Molly Fish.
… an appropriate testing environment to ascertain learning capacities of these fish. We established that black mollies could adequately perform a forced-choice spontaneous alternation (SA) task used extensively in rodents as an index of spatial STM. Employing this paradigm we designed a …
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Use it and boost it: cognitive and physical activities modulate cognition via BDNF-TrkB signaling
… enhance hippocampus- and striatum-sensitive learning via BDNF-TrkB signaling. In addition, we found that physical activity increases BDNF release in the striatum before and during task learning and in the hippocampus during task learning. To further identify the cell signaling mechanisms …
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Estrogenic modulation of place and response learning via specific receptor-mediated mechanisms
… has shown that estrogens indeed modulate learning and memory. Importantly, estrogens do not globally improve cognition but have bi-directional effects depending on the cognitive task and neural systems engaged. Estrogens generally enhance learning and memory for tasks that are sensitive to …
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The effects of acute stress on retrieval of visual and spatial material
… Emotional content of landmarks did not affect place learning, although the women demonstrated better recognition for arousing than neutral landmarks. Study B verified that a novel laboratory-based stressor was a suitable substitute for the foot-shock stressor. This novel stressor combines the …