March 19 - Vision IV From Striate Cortex to Association...

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Vision IV From Striate Cortex to Association Cortices Primary sensory cortex – then there is secondary sensory cortex (line, edges, orientation, motion, directional motion and in addition to this, color) Vision – the circuit defined was the one with the unidirectional motion and we will have to do hypercomplex cells. Light detection in Summary Light on center – in light there is a reduction in glutamate – more reasoning to idea of lateral inhibition. When graded potentials, there will always be some glu release. Ganglial cells detect contrast. M type cells feed into a circuit that tells if object is moving or not. P type cells tells color or Color Sensor – Koniocellular vision – detects differences in what the two eyes are showing. One sense of motion comes from here and some sense of color. At the thalamic centers. Striate Cortex – understand the layers and know that it is retinotopically mapped and understand there is more processing possible in 4B 4A and in the 2/3 layer. Ocular Dominance Columns in the V1
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March 19 - Vision IV From Striate Cortex to Association...

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