Pupil size in people with synesthesia changed depending on how bright or dark the perceived colors were.

So far, so standard. But here’s where things get interesting: if you present a visual synesthete with some input that ...

Ever since I can remember, numbers have appeared to me in specific colors. The number 2 is baby pink, 3 is sunshine yellow, 4 is royal blue-the list goes on. Its not just that they look a certain way, ...

Pupil size in people with synesthesia changed depending on how bright or dark the perceived colors were. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...