VisSys-IIb - Cortical Functions and Their Measurement:...

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    Cortical Functions and Their Measurement: Vision as a Prototype Autoradiography 2-deoxyglucose (2-DG) fMRI
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    Six Layers of Cortex LGN input Parvo Magno
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    Classic Cytoarchitectonic Map of Brodmann (1909) Classic name for visual cortex : Areas 17, 18, 19
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    Some Human Cortical Visual Regions: V1, V2, V3, V4, V5 (MT)
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    Visual Field and the Human Visual System The visual field represented in its projection to the retina demonstrates how the lens of the eye inverts the image being viewed. Up is inverted down and right is represented on the left. Signals from the right retinas (left visual field) of both eyes travel through the optic nerve, optic tract, and optic radiations to the primary visual cortex in the right hemisphere. Signals from the left retinas (right visual field) travel to the left hemisphere. Primary visual cortex lies in the colored area along the calcarine sulcus. Colors show how the different sectors of the visual fields map on to primary visual cortex.
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    Receptive Fields in Retinal Bipolar and Ganglion Cells
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    Receptive Fields of Lateral Geniculate Nucleus
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    Primary Visual Cortex: V1, Area 17, Striate Cortex
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    Receptive Fields of Lateral Geniculate and Primary Visual Cortex
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  Mapping Human Striate Cortex (V1) with Positron Emission Tomography (PET) •Checkerboards were used to present stimuli to different parts of the visual fields. The leftmost checkerboard is a foveal stimulus, the middle one presents a stimulus close to the fovea ( parafoveal ), and the rightmost one is a peripheral stimulus that surrounds the parafovea from 5.5 to 15°. •Stimuli could also be presented to the upper quadrant (e.g., rightmost stimulus) or the lower quadrant (e.g., middle stimulus). (Courtesy of Posner and Raichle).
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This note was uploaded on 08/24/2011 for the course MED 605 taught by Professor Skeen during the Fall '09 term at University of Delaware.

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VisSys-IIb - Cortical Functions and Their Measurement:...

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