Lecture24 - BioNB222 Cornell University Spring 2008 Carl D....

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BioNB222 Spring 2008 Cornell University Carl D. Hopkins 1 Magnocellular from rods parvo cones Lecture 24. Vision in the CNS Reading Assignment Purves et al., (2007) Chapter 12 Learning Objectives 1) To trace retinal connections to the brain 2) Understand the difference between mango-cellular ganglion cells and parvocellular ganglion cells – trace their connections to cortex. 3) Follow changes in receptive fields of cells in retina, LGN (lateral geniculate nucleus) and Cortex. 4) Understand the mechanisms of orientation selectivity (simple cells). 5) Explain the difference between the dorsal and ventral pathways in visual cortex. Lecture Outline 1. Retina projects to: a. LGN-Cortex , Pretectum, Superior Colliculus, and Hypothalamus. The largest projection is to LGN (thalamus) and visual cortex Ganglion cells from rods and cones have circular receptive fields. Vision. b.
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This note was uploaded on 04/30/2008 for the course BIO 2220 taught by Professor Hopkins,c.d. during the Spring '08 term at Cornell University (Engineering School).

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Lecture24 - BioNB222 Cornell University Spring 2008 Carl D....

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