Sökning: "visual cortex"
Visar resultat 11 - 15 av 65 avhandlingar innehållade orden visual cortex.
11. Layout and function of the intracortical connections within the primary visual cortex
Sammanfattning : .... LÄS MER
12. On the evolutionary origin of the vertebrate cortex
Sammanfattning : The aim of this thesis is to dissect out the minimalistic ancestral neural hardware, which has been conserved in homologue structures of the cerebral cortex and in particular the neocortex, across vertebrates. For this purpose, we utilise the lamprey - a cyclostome (jawless vertebrate), and we compare its anatomical homologue of cortex, the lateral pallium (LPal), in terms of its connectivity, cytoarchitecture and sensory organisation with that of the mammalian neocortex. LÄS MER
13. Stimulus evoked transient dynamics in the primary visual cortex in vivo : voltage sensitive dye and extracellular recordings
Sammanfattning : In this study we investigated how the primary visual cortex responds to a change in the visual scene. In analogy to dynamical systems theory such temporal step input gives information about the rules governing the system. LÄS MER
14. Imaging vision : functional mapping of intermediate visual processes in man
Sammanfattning : The human visual system is highly adept at recognizing objects independent of changes in viewing conditions, such as viewpoint, illumination, and partial occlusions by other objects in the visual environment. This invariance to viewing conditions is believed to be achieved by generating invariant shape representations from the variable visual input. LÄS MER
15. Some computational aspects of attractor memory
Sammanfattning : In this thesis I present novel mechanisms for certain computational capabilities of the cerebral cortex, building on the established notion of attractor memory. A sparse binary coding network for generating efficient representation of sensory input is presented. LÄS MER
