According to current theories of expertise, this shouldn’t happen. Becoming an expert in chess, for example, makes you better ...

In this Ebbinghaus illusion of relative size perception, the orange circle on the left looks bigger than the one on the right - but it is actually 10 per cent smaller. In a new study, medical imaging ...

The research focused on the neon-color-spreading illusion, which incorporates patterns ... of a solid shape with a distinct border — a circle, in this case. The closed shape also appears ...