CAS PS 222 Lecture Notes - Lecture 8: Ocular Dominance Column, Visual Cortex, Retinotopy
12 Nov 2018
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V1= primary visual cortex, rst stop in cortex when it comes to visual information. Photoreceptors make up the receptive elds of v1. What is the preferred stimulus of any v1 cell? it is a bar of a speci c orientation. they are orientation detectors as they start to build boundaries of the world. Cells before told us where there is a boundary, but not the orientation. They also respond to motion, length and width. We talked about how there are cells in v1 which get input from either right, either left or both eyes: these last cells prefer stimuli that land on both the visual elds. These are good for depth and motion perception. V1 starts the major organizational work so that higher brain areas can put info together to create a better image. Orientation selective column: column of cells that are all detecting the same orientation.
