Vision.W09 - ELECTROMAGNETIC RADIATION ISION: hanging...

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Unformatted text preview: ELECTROMAGNETIC RADIATION ISION: hanging electromagnetic radiation Into neural firing Dark current receptors fire in the absence of light Receptors located in the retina (the retina is part of the brain) rods: achromatic greater sensitivity c o n e s : color vision greater acuity Fovea: central region of retina highest concentration of cones Your concentration of rods is greatest about 17 degrees peripheral to the fovea. HOW TO RUIN AN OTHERWISE ROMANTIC MOMENT The greatest concentration of rods is 17 degrees peripheral to the fovea... Rods and cones Project to Horizontal, Bipolar, and Amacrine cells, Which project to Ganglion cells The ganglion cells Are the front end Of the optic nerve. What happens From there? THEORY 1 The optic nerve projects to the lateral geniculate nucleus of the thalamus (LGN), which projects to the visual cortex. There is a point-for-point correspondence between points on the retina and points in visual cortex. . ....
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Vision.W09 - ELECTROMAGNETIC RADIATION ISION: hanging...

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