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Laminar Fmri In Auditory Cortex At 7t, Jacob Jl Matthews
Laminar Fmri In Auditory Cortex At 7t, Jacob Jl Matthews
Electronic Thesis and Dissertation Repository
Auditory cortex is involved in the perception, attention, memory and imagery of sounds. Neuroimaging has been a rich source of information on which cortical areas are recruited for different tasks. However, a more detailed understanding has been confined to animal studies using invasive imaging modalities, and high-resolution functional descriptions of auditory cortex, including columnar/laminar specific activity, topographical organization within layers, and the way these representations transfer between processing structures remain poorly understood in humans. We present 7T fMRI as a non-invasive tool for high-resolution functional imaging of human auditory cortex on the laminar scale. We describe MATLAB tools for optimizing …
Hierarchical Organization In Auditory Cortex Of The Cat Using High-Field Functional Magnetic Resonance Imaging, Amee J. Hall
Hierarchical Organization In Auditory Cortex Of The Cat Using High-Field Functional Magnetic Resonance Imaging, Amee J. Hall
Electronic Thesis and Dissertation Repository
Sensory localization within cortex is a widely accepted and documented principle. Within cortices dedicated to specific sensory information there is further organization. For example, in visual cortices a more detailed functional division and hierarchical organization has been recorded in detail. This organization starts with areas dedicated to analysis of simple visual stimuli. Areas higher in the organization are specialized for processing of progressively more complex stimuli. A similar hierarchical organization has been proposed within auditory cortex and a wealth of evidence supports this hypothesis. In the cat, the initial processing of simple auditory stimuli, such as pure tones, has been …