An Old Neuron Learns New Tricks: Redefining Motion Processing in the Primate Retina

Motion sensitivity requires the comparison of neural responses activated by nearby points in visual space. In this issue of Neuron, Manookin et al. (2018) find that in the primate retina, such comparisons are already manifest in second-order retinal bipolar cells, relying on lateral excitation mediated by gap junctions.