NRSC 320 Chapter Notes - Chapter 4: Map, Visual Cortex, Receptive Field
13 Mar 2018
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Document Summary
Perception is affected by the eye"s focusing system and by properties of the rod and cone receptors. Neurons in different places in the visual system respond best to specific stimuli. Spatial organization: different locations in the environment and on the retina are represented by activity at specific locations in the visual cortex. The neural map on the striate cortex (area v1) Points in the retina are represented spatially in the striate cortex. Retinotropic map: electronic map of the retina on the cortex. Two points that are close together on an object and on the retina will activate neurons that are close together in the brain. Although a, b, c and d are the same distance apart on the retina, the spacing is not the same on the cortex. More space to locations near fovea than to location in peripheral retina. More space on the cortex translates into better detail vision rather than larger size.
