CAS PS 222 Chapter Notes - Chapter exam 2: Binocular Disparity, Visual Cortex, Lateral Geniculate Nucleus
2 Jul 2020
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The primary visual cortex v1 is the part of the occipital lobe where signals ow for the lateral geniculate nucleus. Cells in v1 are most effectively stimulated by bars or edges within a narrow range of orientations. The center-surround receptive elds of rgcs help tell the visual system where light is located, while the responses of v1 neurons to oriented edges begin to tell the visual system what objects are. We recognize objects by their shape which is de ned by the position and orientation of its edges. Area v1 contains two main classes of neurons: Simple cells respond most strongly to bars of light with particulate orientation at a particular location on the retina (the cell"s receptive eld). The preferred orientation of the cell, the orientation that tends to produce the strongest response, is determined by ashing bars with various orientations in the rf.
