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.
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Showing 1 to 7 of 7 for “"cortical column"”.
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Intrinsic Features of the Multisensory Cortical Area LRSS in the Ferret
… none have evaluated the influence of local or columnar circuitry. The goal of the present study is to examine of local features of the ferret lateral rostral suprasylvian sulcus (LRSS), a multisensory cortex. Immunostaining revealed the cytoarchitectonic features of the LRSS: thick …
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Embedding of synchronous spike activity in cortical networks
… of a chain within an anatomically inspired cortical network architecture requires that the chain pools are strongly localized, the pools themselves being close to each other. Taken together, the synfire chain is trapped in a cortical volume approximately corresponding to a cortical column. …
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Learning image segmentation and hierarchies by learning ultrametric distances
… 3d electron micrographs of brain tissue. The cortical column, a basic unit of cortical microcircuitry, will produce a single 3d electron micrograph measuring many 100s terabytes once imaged and contain neurites from well over 100,000 different neurons. It is estimated that tracing the neurites …
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The Impact of Synchrony On Neuronal Coding and Behavior
<p>Cortical columns represent the elementary functional and computational module of the neocortex. Although much is known about its laminar structure and synaptic connectivity, how patterns of spiking activity propagate within columnar circuits when the state of the brain changes remains poorly …
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Subcortical Inputs Governing Cortical Network Activity
… characterizes the nature and mechanisms of awake cortical network dynamics, as well as the sources of sensory inputs in different cortical layers of the rat somatosensory system. Mammalian brains generate internal activity independent of environmental stimuli. Internally generated states may bring …
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Investigation and Modelling of Fetal Sheep Maturation
… demonstrate that the sleep state change is a cortical phase transition—with SWS-to-REM transition being a first-order transition, and REM-to-SWS second-order. Further analyses by correlation time, SVD entropy, and spectral edge frequency display that the differentiation of the two distinct SWS …
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Songbird Brain Organization and its Molecular Convergence with Humans for Vocal Imitation Learning
… regions in songbirds and two layers of a cortical column in humans for vocal imitation. We molecularly profiled the song system of the budgerigar parakeet to test for further convergence in the parrot lineage, but were limited by sequence gaps and overall quality of the reference genome …