(Medical Xpress)—People have a distance at which they are best able to judge depth. That distance, it turns out, is dictated by how long people understand their arms to be. Researchers showed this in ...

Our perception of how large or small things are in the world is systematically influenced for how we perceive distance or depth. This is most famously shown by the Ponzo Illusion (discovered by Mario ...

During a lunch with my friend Kurt at the Chicago Club—one of those quietly elegant institutions where history sits comfortably in the room—I arrived with a question. It was one that could only be ...

A study examines distance perception in bats. Many bat species use echolocation--emitting sound signals and analyzing the returning echoes--to assess their distance from an object. However, it is ...