Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Color vision in the tree shrew after removal of posterior neocortex

Color vision in the tree shrew after removal of posterior neocortex Shrew After Remova n/r. SNYDER Department Neo 1. T. DIAMOND Durham, North Carola 27706 of Psychology, University, ATTEMPTG TO TRACE the phylogeny of color vision vertebrates it is necessary to distguish two factors: retal mechanisms the central nervous system structures responsible for translatg the differences the afferent signal to behavior. Retal mechanisms for color are homologous all vertebrates the sense that the potentiality for identical photosensitive pigments is common to all species must therefore be attributed to their common ancestor (14). Apparently only a few genes control the last few chemical steps which make the difference between actualizg the potential fallg short of it sce the complete set of pigments seems to be a trait easy to lose easy to reacquire phyletic history. It is even possible for one eye a sgle dividual to possess the full equipment while its mate is color-bld (3). No wonder closely related species differ their ability to perceive hue. One might expect that a nocturnal way of life, for example, must change the balance between selective pressure mutation rate on those alleles which control the production of photosensitive pigments, as a result any population occupyg such a niche might lose the necessary http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Neurophysiology The American Physiological Society

Color vision in the tree shrew after removal of posterior neocortex

Loading next page...
 
/lp/the-american-physiological-society/color-vision-in-the-tree-shrew-after-removal-of-posterior-neocortex-DfeCgPzg1D

References

References for this paper are not available at this time. We will be adding them shortly, thank you for your patience.

Publisher
The American Physiological Society
Copyright
Copyright © 1969 the American Physiological Society
ISSN
0022-3077
eISSN
1522-1598
Publisher site
See Article on Publisher Site

Abstract

Shrew After Remova n/r. SNYDER Department Neo 1. T. DIAMOND Durham, North Carola 27706 of Psychology, University, ATTEMPTG TO TRACE the phylogeny of color vision vertebrates it is necessary to distguish two factors: retal mechanisms the central nervous system structures responsible for translatg the differences the afferent signal to behavior. Retal mechanisms for color are homologous all vertebrates the sense that the potentiality for identical photosensitive pigments is common to all species must therefore be attributed to their common ancestor (14). Apparently only a few genes control the last few chemical steps which make the difference between actualizg the potential fallg short of it sce the complete set of pigments seems to be a trait easy to lose easy to reacquire phyletic history. It is even possible for one eye a sgle dividual to possess the full equipment while its mate is color-bld (3). No wonder closely related species differ their ability to perceive hue. One might expect that a nocturnal way of life, for example, must change the balance between selective pressure mutation rate on those alleles which control the production of photosensitive pigments, as a result any population occupyg such a niche might lose the necessary

Journal

Journal of NeurophysiologyThe American Physiological Society

Published: Jul 1, 1969

There are no references for this article.