Class I and class II ganglion cells of rabbit retina: quantitative analysis of dendritic branching patterns

The Journal of Comparative Neurology
E V Famiglietti

Abstract

Class I and class II ganglion cells, distinguished from one another in a companion paper, were analyzed in regard to their dendritic branching patterns by determination of: 1) mean "branching density" (BD), 2) "radial branching frequency" (RBF), and 3) "branch length distributions" (BLDs; Famiglietti [ 1992a] J Comp Neurol 324:295-321). Branching density of class II cells exceeded that of class I cells by a factor of two, when compared at the same retinal location, but declined with increasing distance from the visual streak (dvs). A one-bin difference in RBF between class I and class II cells was not statistically significant. BLDs are scatter-plots of individual preterminal and terminal branch lengths versus the distances of their origins from the soma. The parameters mp and mt, the slopes of regression lines fitted to the preterminal and terminal BLDs, respectively, were determined; mp, but not mt, was relatively independent of dvs, and was used empirically to determine a boundary value, mp = +5.0, separating "radiate" from "tufted" dendritic branching. Similarity of class I (mp = +8.6 +/- 4.6) and class II (mp = +1.4 +/- 5.2) cells did not allow a statistically significant separation of the two classes, based upon branching...Continue Reading

References

Jun 1, 1979·The Journal of Physiology·L Peichl, H Wässle
Mar 1, 1978·The Journal of Physiology·J H Caldwell, N W Daw
Mar 1, 1989·Journal of Neuroscience Methods·T G SmithE A Neale
Jul 1, 1973·IEEE Transactions on Bio-medical Engineering·D F WannW M Cowan
Apr 16, 1984·Brain Research·L R Stanford, S M Sherman
Oct 1, 1962·The Journal of Comparative Neurology·E RAMON-MOLINER
Sep 24, 2004·The Journal of Comparative Neurology·Edward V Famiglietti
Dec 1, 1966·The Journal of Physiology·C Enroth-Cugell, J G Robson

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