- About
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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
Search results
Showing 41 to 50 of 91 (0.04 seconds)Spelling suggestions: "subject:"brain.research."" "subject:"mainresearch.""
| 41 |
The corticospinal control of the monkey handBaker, Stuart Nicolas January 1995 (has links)
No description available.
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| 42 |
The neuroprotective role of dehydroepiandrosterone (DHEA) on neurotoxicity in the hippocampusKimonides, Victoria G. January 1997 (has links)
No description available.
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| 43 |
Development of visual selective attentionMacFarlane Hood, Bruce January 1991 (has links)
No description available.
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| 44 |
Synaptology of major afferents to the neostriatal sub-compartments in the ratHanley, Jason James January 1997 (has links)
No description available.
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| 45 |
Peptide and monoamine modulation of a withdrawal reflex in the rabbitHoughton, Andrea Karen January 1995 (has links)
No description available.
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| 46 |
Learning temporal representations in cortical networks through reward dependent expression of synaptic plasticityGavornik, Jeffrey Peter 16 October 2012 (has links)
The neural basis of the brain's ability to represent time, which is an essential component of cognition, is unknown. Despite extensive behavioral and electrophysiological studies, a theoretical framework capable of describing the elementary neural mechanisms used by biological neural networks to learn temporal representations does not exist. It is commonly believed that the underlying cellular mechanisms reside in high order cortical regions and there is an ongoing debate about the neural structures required for temporal processing. Recent experimental studies report sustained neural activity that can represent the timing of expected reward in low-level primary sensory cortices, suggesting that temporal representation may form locally in sensory areas of the cortex. This thesis proposes a theoretical framework that explains how temporal representations of the type seen experimentally can be encoded in local cortical networks and how specific temporal instantiations can be learned through reward modulated synaptic plasticity. The proposed framework asserts that the mechanism responsible for encoding the observed temporal intervals is long-term synaptic potentiation between neurons in a recurrent network. Analytical and numerical techniques are used to demonstrate that the model is sufficient to allow näive networks of both linear and non-linear neurons to encode and reliably represent durations specified by external cues during a training period. Analysis of a non-linear spiking neuron model is accomplished using a mean-field approach. The form of temporal learning described has specific implications that can be confirmed experimentally and these predictions are highlighted. Experimental support for a central component of the model is presented and all of the the results are discussed in relation to current experimental and computational work. / text
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| 47 |
The cytoarchitecture of the cochlear nuclear complex of the guinea pigHarrison, Jacqueline January 1989 (has links)
No description available.
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| 48 |
The role of noradrenergic pathways in the morphine withdrawal excitation of oxytocin neuronesMurphy, Niall P. January 1995 (has links)
No description available.
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| 49 |
Neurochemical and electrophysiological studies of sulphur-containing analogues of glutamate and aspartate in the rat central nervous systemThompson, Gareth Andrew January 1995 (has links)
No description available.
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| 50 |
The role of glutamate receptors at the CA3/CA1 Schaffer collateral/commissural synapse of rat hippocampusWoodhall, Gavin Lawrence January 1994 (has links)
No description available.
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