Using a laser range-finder, neurobiologists have scanned real-life scenes to gather millions of distance measurements to surfaces in each scene -- analyzing the mass of data to explain a series of ...

(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 ...

Any walker or hiker can tell you that an uphill path is more challenging than a flat one. But does it literally look longer, too? A study in the May issue of Attention, Perception, & Psychophysics ...

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 ...