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March 17 - Understand cells in the V1 Remainder of Visual...

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Understand cells in the V1. Remainder of Visual system – parsing out images in the V1. Large areas of the brain being attributed to associative information. Vision III from the LGN to the Striate Cortex. Perception – 28 fps. video is stop motion (29 fps). Vision is an amalgamation of information coming in. Think of the retinal circuit that allows contrast. There are a set of cells for edges and a set of cells for color differences. Fovea – almost purely cones – sense of blobbiness is by cones Rods – largely tell what motion there is. LGN splits the image – 6 to 10 million – 12 times . 72 million cells reporting on a 2 degree arc. These cells report back to the striate cortex. Contrast information between layers – that everyother Parvo – color and form Magno – motion and ___ . Koniocellular layers – change sin depth of field. LGN has a lot of info coming back to it, fraction leaving it. Mapping to the Visual cortex retinotopically mapped. the V1 – Projections from LGN to visual cortex Coming out of LGN – information comes back to the cortex V1/V2 and is six layers thick. One of
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