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

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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 ...

People who see colors while perceiving smells are better at distinguishing between different smells and different colors, and are better at naming odors, compared to a group without synesthesia.

To people whose sensory perceptions stay quietly inside their own sandboxes instead of coming out to play with each other, it will come as no surprise that synesthetes--people who experience letters ...

Have you ever wondered what it’s like to see sound or smell color? It sounds absurd, but believe it or not, it’s totally possible for people with synesthesia — a term used to describe the simultaneous ...

If I told you the letter “G” is red, you might be confused. But if you had what’s called grapheme-color synesthesia (GC), there’s a good chance you’d argue I’m wrong. That’s because many people who ...

It’s time to stop scoffing at the synesthetes: linking music to colors is totally normal. It’s not really about the notes, though. Researchers say the colors we find in music are actually the colors ...