
When you look at clouds, tree bark, or the front of a car, do you sometimes see a face staring back at you? That’s “face pareidolia” and it is a perfectly normal illusion where our brains spot faces in patterns that aren’t actually faces.
For most of us, these illusions are harmless. But my new research, published in Perception, suggests people with visual snow syndrome – a rare neurological condition that causes constant “visual static” – experience this phenomenon more strongly and more often.