TikTokers with synesthesia have stirred up a trend linking colors to names. And now, even people who don't have the condition can get in on the action. According to Psychology Today, synesthesia is a ...

Ever caught a whiff of the color blue? Or tasted a symphony? If that sounds completely bonkers to you, you’re in the majority. But for a small slice of humanity, these cross-sensory experiences are ...

I recently heard a fascinating Radiolab report about tetrachromacy—or the presence of a fourth cone for color perception in people, usually women. Most people can see a million colors; tetrachromats ...