Schematic of end inhibition in a VS cell network. Two VS cells are shown in green (VS1) and blue (VS2). Direct excitatory (triangles) and inhibitory (circles) EMD inputs are depicted in the same colors. In the absence of end inhibition, the expected response in the dendrites is independent of the width of moving patterns (left inset, black line). End inhibitory input to VS1 is shown as red collaterals, originating from direct inhibitory EMD input in the receptive field of VS2, as supported by the current injection experiments. This input decreases the response to wider patterns (left inset, red line). In the axon, the expected response is independent of pattern width (right inset, black line). The inclusion of a gap junction between the axons of VS1 and VS2 (orange connection) results in increased responses to increasing pattern width (right inset, orange line). For simplicity, end inhibition in VS2 is not shown.