After decades of exhaustive study, scientists have concluded that human tetrachromacy is real. Some people have a truly superhuman range of color vision. In fact, there are two distinct types of ...

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 ...

I put myself out there recently and suggested I might have tetrachromacy or the presence of a fourth cone class for color perception. I also suggested that there could be a link between synesthesia ...