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Development of the Visual System

Development of the Visual System. 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. Pomeranz, B. & Chung, S.H. (1970) Dendritic-tree anatomy codes

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Development of the Visual System

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  1. Development of the Visual System

  2. 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.

  3. Pomeranz, B. & Chung, S.H. (1970) Dendritic-tree anatomy codes form-vision physiology in tadpole retina . Science, 170, 983-984

  4. Retina LGN V1 - - - + + + - - - + + - - + - + + - Receptive Fields

  5. Aggregate Pattern Feature Detection 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 00 1

  6. Aggregate Pattern Feature Detection 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 0 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 0 0 0 0 0 1 0 tennis ball 1 1 0 0 0 0 1 0 0 0 0 00 1

  7. How does this system come to be? I.e., what role does stimulation play in its maturation? Environment Dependent 1. induction 2. facilitation of rate Environment Expectant 3. enhancement of ultimate level 4. maintenance

  8. Sur, Garraghty &Roe (1988) Science, 242, 1437-1441.

  9. Sharma, J. Angelucci, A. & Sur, M. (2000) Induction of visual orientation modules in auditory cortex. Nature, 404, 841-847.

  10. cGMP Guanylyl cyclase NO NO synthase

  11. Held, R. & Hein, A. (1963) Movement-produced stimulation in the development of visually –guided behavior. J. Comp. Physiol. Psych. 56, 872-876.

  12. 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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