Here's a visual illusion that catches the brain in the act of making up color. Arrange a set of black spokes radiating from a center, then recolor short pieces of each spoke to red or blue, ...

Morgan Bauman will make you reconsider what it means to "see." The young writer is partially color blind, but sees colors never seen in the "real" world synesthetically. This is because our brains, ...

Optical illusions aren’t just fun internet puzzles—they’re windows into how our brains construct reality. New research shows ...