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 12 of 12 for “"olfactory learning"”.
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Non-Canonical Axonal Insulin Receptor Signaling Drives Aversive Olfactory Learning
… memories. A simple model of associative learning is provided by nematode C. elegans, which can form memories of different types of odor stimuli through its simple yet sophisticated nervous system. C. elegans uses its sensory neurons to detect and navigate towards the odors of its food …
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Olfactory learning, its development and changing role in Honeybee (Apis Mellifera) behaviour
… using the proboscis extension reflex (PER) learning paradigm. This thesis aims to establish any differences in the behavioural parameters of this olfactory learning. A strong, repeatable methodology is developed, and this specificity of the learning, tested by training bees to different …
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Genetic dissection of variability in cognitive and locomotor phenotypes using Drosophila melanogaster
… the diversity of phenotypic presentation seen in learning, memory, and neurodegenerative mutations using the Drosophila Synthetic Population Resource (DSPR). I utilized quantitative trait loci (QTL) mapping and directional selection methods to identify genomic regions contributing to olfactory …
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New Methods for Characterizing the Complex Neural Circuitry of the Adult Drosophila Brain
… bodies (MB's), sites involved heavily in olfactory learning. In addition, EB neuron birth and axon development are widely separated in time making them ideal model neurons for further studies. Second, comparative genetic mosaic analysis of EB and dorsal cluster (DC) neurons suggests that …
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Compartmentalization and axon guidance in the Drosophila brain
… bodies (MB), brain structures required for olfactory learning and memory. In mutant animals, the MB lobes are disorganized and fail to elaborate their characteristic structure. I find
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Olfactory Processing in the Piriform Cortex of Awake, Freely Moving Mice
… established as the primary cortical recipient of olfactory information in the mammalian brain. In rodents, information extracted from recordings of PC neurons can accurately decode the identity of odors, leading to delineation of PC as the primary cortical region involved in the formation of odor …
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Localizing engrams of olfactory memories in Drosophila
… were able to localize an engram of aversive olfactory memory to the mushroom bodies of Drosophila (Zars et al., 2000). In this thesis, I followed up on this finding in two ways. Inspired by Zars et al. (2000), I first focused on the whether it would also be possible to localize memory …
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A Scent of Direction: Exploring Adaptive Olfactory Navigation in Drosophila
… complex and often dynamic landscapes. While olfactory navigation has traditionally been modeled as a reflexive behavior driven by immediate sensory cues, whether flies can leverage more sophisticated strategies, integrating sensory input with spatial memory and internal representations of …
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Mutants of Drosophila Melanogaster's ABC Transporter, White, Have Altered Cholesterol-Mediated Acquisition of Memory that is Moderated with 5-HT
… (5-HT) and dopamine that are critical for olfactory learning and memory in Drosophila. ABCG transporters are also known for their roles in lipid transport and homeostasis. In recent years, several behavioral differences in learning and memory have been found in white mutants that are …
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Life on the Edge: Insights into the Neural and Behavioral Algorithms of Plume Tracking
… the concise architecture of the Drosophila olfactory and navigational circuitry to elucidate the neural mechanisms underlying odor navigation. We developed a virtual reality environment compatible with two-photon functional imaging that allows a walking head-fixed fly to navigate …
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Dopaminergic Modulation Shapes Sensorimotor Processing in the Drosophila Mushroom Body
… is a prominent neural structure essential for olfactory learning. Dopaminergic neurons convey salient information about reward and punishment to the mushroom body in order to adjust synaptic connectivity between Kenyon cells, the neurons representing olfactory stimuli, and the mushroom body …
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Head and protocerebral patterning in the spider Parasteatoda tepidariorum
… and object recognition (central complex) and olfactory learning and memory (mushroom bodies/MB). However, it is not clear whether the chelicerate arcuate body and spider MB are homologous to insect central complex and MB, respectively. The overall aim of this thesis is the homology of …