Titlebook: Visual Development; Nigel W. Daw Book 19951st edition Springer Science+Business Media New York 1995 cortex.nervous system.ophthalmology.op

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Introductionral questions in these areas have been framed over the years in terms of the visual system. This is not surprising, because we are visual animals. If dogs ruled the world, the title of this book would be .. As it is, vision is the most important sense to us, and the first that we think of in discuss

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Anatomical Development of the Visual Systems its own individual job to do. Cells in the various parts of the nervous system are generated over the same period, and their projections grow out simultaneously but in different directions. Somehow these billions of projections have to cross a plethora of other fibers along the way, in many cases

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Development of Receptive Field Propertiestely formed when the eyes open, and the visual performance of all higher mammals is initially uncertain and groping. Only with use can one analyze the visual image fully and respond to it. There is clearly a learning process occurring. The key questions are: which properties develop, where in the vi

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Modifications to the Visual Input That Lead to Nervous System Changese the individual to cope with problems from the degradation. Unfortunately, such deficits are all too common. The worst are deficits where the image on the left retina is not coordinated with the image on the right retina. In such cases the visual cortex will receive mismatched signals, and either s

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Physiological and Anatomical Changes That Result from Optical and Motor Deficitsith animals. The seminal experiments were done by David Hubel and Torsten Wiesel in the early 1960s. They were awarded the Nobel prize in 1981 for this work (Wiesel, 1982), and for their work on the organization of the visual system in normal animals.

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Critical Periods cataract before the age of 7. They can also compensate for any surgery or optical corrections that change the image on the retina back to normal. There is a period of time during development, known as the critical period, during which the anatomy and physiology of the visual system are mutable, or

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