The mammalian retina consists of neurons of >60 distinct types, each playing a specific role in processing visual images. They are arranged in three main stages. The first decomposes the outputs of the rod and cone photoreceptors into ∼12 parallel information streams. The second connects these streams to specific types of retinal ganglion cells. The third… (More)
In the retina, the beautifully symmetrical 'starburst' amacrine cells interact with each other in a way that creates asymmetrical responses to moving images at their dendritic tips. This computation, occurring in a retinal interneuron, is a foundation of the directional signals transmitted by the retina to the brain.