Dendritic morphology of ON-OFF RGCs in the visual streak of the rabbit retina. The dendritic trees were reconstructed by tracing confocal projections of Neurobiotin-filled RGCs; the ON arbor is shown in red, and the OFF arbor is shown in black. The local edge detector, shown in black, stratifies at the border of the ON and OFF sublaminae. D, dorsal; V, ventral. Scale bar = 100 µm.