Figure 4.

The morphology and stratification of the three types of S/M opponent ganglion cells. The S-ON (a) and inverted S-OFF ganglion cells (b) each ramify at ∼75% depth in the inner plexiform layer (IPL) and have similar morphologies. c, The bistratified S-OFF ganglion cell with direct OFF blue cone bipolar cell input ramifies at ∼14% and 77% depth in the IPL, where 0–40% represents sublamina a (OFF bipolar cells) and the remainder is sublamina b (ON bipolar cells). Red, Neurobiotin-staining; cyan, ChAT immunostaining. Scale bar, 100 μm; z-projections = 10 μm.