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 10 of 10 for “"Area 17"”.
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Anatomical analysis of the feedback projections from extrastriate cortex to area 18 in ferret visual cortex
… thesis is to characterize the cortical inputs to area 18 of ferret visual cerebral cortex. Contrary to feedforward connections, feedback connections are presumed to have a modulatory influence on the responses of lower order neurons providing information already processed. Input from feedback …
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Imaging plasticity and structure of cortical maps in cat and mouse visual cortex
… and reliability in the primary visual cortex (area 17). Functional imaging of the position, size and shape of area 17 corresponded exactly to the location of this area in stained histological sections. The imaged maps were also confirmed with electrophysiological recordings. The retinotopic …
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The role of EphrinA for the retinotopic map formation in mouse visual cortex
The mammalian cortex is arranged into a number of areas that represent our sensory, motor and cognitive functions. A characteristic feature of many sensory areas is their precise topographic organisation: in the same way as the “homunculus” in the somatosensory cortex represents the entire body …
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The ontogeny and functional distribution of novel, neurochemically-defined columns in mammalian visual cortex
… within different geniculate-recipient layers of area 17. These columns of 5-HT receptors measured about 400 [t,m wide with a centre-to-centre spacing of approximately 900 Inn. The ontogenic distribution of synaptic zinc (Zn), a vesicular component of a subset of glutamatergic-neuron terminals, …
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Auditory Cortex Projections Target the Peripheral Field Representation of Primary Visual Cortex
… cortical projections to primary visual cortex (areas 17&18) in adult cats. Two groups of animals were studied. In the first group, large deposits were centered on the lower visual field representation of the vertical meridian located along the area 17&18 border. Following tissue processing, …
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Cellular and Synaptic Morphology of Golgi -Impregnated Cortical Neurons in Patients With Schizophrenia
… tissue blocks from frontopolar cortex, Area 10, and primary visual cortex, Area 17, were acquired from a pool of 16 subjects with chronic schizophrenia and 22 normal comparison subjects. Golgi-impregnated pyramidal neurons from Layer 3 and Layer 5 were systematically randomly sampled and …
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Organization of the Clare-Bishop Area of Cat Visual Cortex (Extrastriate)
… (MIN). The visual cortex has more than 10 areas thought to process different aspects of vision. This thesis is about the functional organization of one of these cortical areas, the Clare-Bishop area, its geniculate afferent pathways, and its participation in associational cortical circuits. …
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Breeding bird populations in relation to the vegetation structure of abandoned contour mines in Southwest Virginia
Twelve study areas on abandoned contour mines in southwest Virginia were surveyed to investigate relationships between breeding bird population parameters and structural aspects of the disturbed area vegetation. The territorial mapping method was employed to census bird populations. The number of …
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Anpassung der lokalen zerebralen Glukosetransporterdichten an Veränderungen der lokalen Glukoseutilisation und ihre Auswirkungen auf die lokalen Glukosetransportraten im Rattenhirn
… Schichten I-III des Colliculus superior, in der Area 17 des visuellen Kortex und im okzipitalen Kortex ab. Die GLUT1-Dichte war im Corpus geniculatum laterale vermindert, während die GLUT3-Dichte im Corpus geniculatum laterale und den Schichten I-III des Colliculus superior verringert war. Die …
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Using Fundamental Properties of Light to Investigate Photonic Effects in Condensed Matter and Biological Tissues
… properties of a system. My thesis focuses on two areas: photocarriers in gallium arsenide and biomedical optics. Varying the excitation wavelength can be used to study both biological tissue and condensed matter. I altered the excitation wavelengths to be in the longer near-infrared (NIR) optical …