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Fiber Optic Mapping of the Xenopus Visual System: Shift in the Retinotectal Projection during Development

Fraser, Scott E. (1983) Fiber Optic Mapping of the Xenopus Visual System: Shift in the Retinotectal Projection during Development. Developmental Biology, 95 (2). pp. 505-511. ISSN 0012-1606. doi:10.1016/0012-1606(83)90053-2.

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Two new techniques for assaying the retina to tectum connections in the lower vertebrate visual system are presented. These techniques allow defined regions of the retina to be stimulated, thus circumventing some of the difficulties of the more conventional retinotectal mapping techniques. Applying these techniques to the Xenopus visual system demonstrates that the retina-to-tectum projection shifts during development. The central part of the retinotectal projection moves medially and caudally about 150 μm (10% of the size of the tectum) in two weeks. The presence of such plasticity in a normal developing animal indicates that the plasticity previously observed in experimentally altered animals probably reflects a normal developmental process.

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Fraser, Scott E.0000-0002-5377-0223
Additional Information:© 1983 Academic Press. Inc. Received 25 June 1982, Accepted 22 September 1982. I thank Drs. M. Bronner-Fraser, D. Petersen, and M-m. Poo, N. O'Rourke, and V. Bayer for critical reading of the manuscript, M. Duda for assistance with the histology. Supported by NIH (NS-14807 awarded to Dr. R. K. Hunt) and NSF (BNS80-23638 to S. E. Fraser). A preliminary report of some of this work was presented to the Physiological Society (Fraser, 1980).
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Official Citation:Scott E. Fraser, Fiber optic mapping of the Xenopus visual system: Shift in the retinotectal projection during development, Developmental Biology, Volume 95, Issue 2, 1983, Pages 505-511, ISSN 0012-1606, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:66139
Deposited On:14 Apr 2016 17:55
Last Modified:10 Nov 2021 23:53

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