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Rod and cone inputs to bipolar cells in goldfish retina
Author(s) -
Ishida A. T.,
Stell W. K.,
Lightfoot D. O.
Publication year - 1980
Publication title -
journal of comparative neurology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.855
H-Index - 209
eISSN - 1096-9861
pISSN - 0021-9967
DOI - 10.1002/cne.901910302
Subject(s) - retina , inner plexiform layer , biology , cell type , retinal , anatomy , receptive field , chromatic scale , biophysics , microbiology and biotechnology , neuroscience , optics , cell , physics , genetics , biochemistry
Five morphological types of bipolar cells which make synaptic contact with rods and cones are distinguished in the retina of adult goldfish ( Carassius auratus ) by characteristics readily observable in the light microscope. Cells were designated type a or type b according to whether their axons terminate in the distal part (sublamina a) or proximal part (sublamina b) of the inner plexiform layer, respectively. Analysis of serial semi‐thin sections of Golgiimpregnated cells demonstrates that each subtype of bipolar contacts rods and a characteristic set of chromatic subtypes of cones: types al and bl cells contact rods and red‐sensitive cones, while types a2, b2, and b3 contact rods and red and green‐sensitive cones. Comparison with published descriptions of cells stained with Procion Yellow after intracellular recordings had been made suggests that type a cells should be off‐center types and type b on‐center. Furthermore, it is suggested that the receptive fields of cell types al and bl should be non‐color‐coded, and those of a2, b2, and b3 color‐coded.