Reptiles and mammals use similar sensory organizations in the midbrain.
Striking similarities were observed between the overlapping visual and tactile maps of the mammalian superior colliculus and of its homolog in reptiles, the optic tectum. This topographic pattern probably represents a plan of sensory representation that existed in ancient reptiles and that was retained during the evolution to mammalian forms more than 180 million years ago.
D000818:Animals; D005075:Biological Evolution; D004558:Electric Stimulation; D004566:Electrodes; D007076:Iguanas; D008322:Mammals; D012104:Reptiles; D013477:Superior Colliculi / Q000502:physiology*; D014110:Touch; D014785:Vision, Ocular