Science Daily  May 23, 2022 Mice use a specific neural pathway to detect shadows, and it can detect just about the dimmest shadows possible. The human eye has the same neural circuit, which researchers in Finland think could be used to probe visual diseases at unprecedented resolution. To test shadow detection, the researchers put mice in a maze with nearly no light. The exit was marked by a black spot, just barely distinct from the surrounding darkness. By tracking how the mice moved through the maze and measuring the activity of neurons at the back of the eye the team […]