ABSTRACT
This chapter examines the neuroanatomy and feature extraction properties of various vertebrate retinas. It begins by reviewing the function(s) of each of the interneurons that make up the retina. The retinal photoreceptors, the rods and cones, are different from arthropod retinula cells in that they
hyperpolarize
in response to absorbed light energy. Rods and cones do not spike; they are essentially analog transducers, like retinula cells.
