Fig. 7
From: Neural mechanisms of contextual modulation in the retinal direction selective circuit
On SAC–On WAC–On BC–On SAC synaptic motif is detected by connectomic tracing. a Connectomic reconstruction of an On SAC dendritic sector (grey) and 3 of its postsynaptic On WACs (black). Spheres indicate the soma locations of the SAC (grey) and On WACs (black). b An electron microscopy (EM) example of On SAC–On WAC synapse. c Identity of the output synapses from the On WACs reconstructed in a. Color code indicates the n = 59 sampled synapses in which the postsynaptic partner was classified as either bipolar cell (BC), amacrine cell (AC), or ganglion cell (GC). d Type 7 bipolar cells previously reconstructed in the volume (orange) and the On WACs reconstructed in a (black). Small purple spheres indicated On WAC – BC7 synapses. e An electron microscopy (EM) example of On WAC–BC7 synapse. f Schematic summarizes the On SAC–On WAC–On BC7–On SAC synaptic connections reconstructed by connectomic tracing
