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vision - 0 0 1 0 0 0 0 0 0 1 0 soccer ball 1 0 1 1 1 1 0 0...

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Development of the Visual System
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Lettvin, J.Y., Maturana, H.R., McCulloch, W.S. & Pitts, W.H. (1959) What the frog's eye tells the frog's brain. Proceedings of the Institute of Radio Engineers, 47, 1940-1951.
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Pomeranz, B. & Chung, S.H. (1970) Dendritic-tree anatomy codes form-vision physiology in tadpole retina . Science, 170, 983-984
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Receptive Fields Retina + - - - + + - - + + LGN + - - + - - V1 + - -
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a b c d e f g a b c d e f g baseball 1 0 0 0 0 0 1 1 0 0 0 0 0 0 hot dog 1 0 0 1 0 0 0 0 1 0 0 0 0 0 grandma 0 1 1 0 1 1 0 0 0 1 0 0 0 0 apple pie 0 0 0 1 0 0 0 0 0 0 1 0 0 0 football 0 0 0 0 1 0 0 0 0 0 0 1 0 0 soccer ball 1 0 1 1 1 1 1 0 0 0 0 0 1 0 tennis ball 1 1 0 0 0 0 1 0 0 0 0 0 0 1 Aggregate Pattern Feature Detection
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Unformatted text preview: 0 0 1 0 0 0 0 0 0 1 0 soccer ball 1 0 1 1 1 1 0 0 0 0 0 1 Aggregate Pattern Feature Detection How does this system come to be? I.e., what role does stimulation play in its maturation? 1. induction 2. facilitation of rate 3. enhancement of ultimate level 4. maintenance Sur, Garraghty &Roe (1988) Science, 242, 1437-1441. Sharma, J. Angelucci, A. & Sur, M. (2000) Induction of visual orientation modules in auditory cortex. Nature, 404, 841-847. NO synthase NO Guanylyl cyclase cGMP Held, R. & Hein, A. (1963) Movement-produced stimulation in the development of visually –guided behavior. J. Comp. Physiol. Psych. 56, 872-876. Tees, R.C., (1974) Effect of visual deprivation on development of depth perception in the rat. Journal of Comparative and Physiological Psychology, 86, 300-308....
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