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Published October 14, 1977 | public
Journal Article

Early development of X-cells in kitten lateral geniculate nucleus

Abstract

Lateral geniculate nucleus cells of the kitten were classified as X-cells or Y-cells with a contrast reversal test and their latencies to optic chiasm shock were measured. X-cells with mature latencies were found as early as 21 days. Y-cells did not have adult latencies at 40 days. The early development of some X-cells may be due to differential rates of fiber myelination and synaptic maturation within the lateral geniculate nucleus.

Additional Information

© 1977 American Association for the Advancement of Science. Received 10 June 1977; revised 23 July 1977. This research was supported in part by grants from the Spencer Foundation and by NIH grants 1F32NS05038-01 and 1F32EY05069-01 to J.L.N. and J.D.D., and by PHS grant MH25852 to J.D.P. We thank L. Crowder and G. Blasdel for technical assistance and the Lederle Laboratories for providing Flaxedil.

Additional details

Created:
August 19, 2023
Modified:
October 23, 2023