Synesthesia is a condition in which sensory input from one cognitive stream gives rise to experience in another unstimulated cognitive stream. The most common forms of synesthesia include ...

Synesthesia is a perceptual experience in which one sensory input (like a letter or number) is automatically associated with another sensory experience (like a color or feeling). The prevalence of ...

To most people a "red-letter day" is merely a metaphor. But it's everyday reality to a synesthete who sees the alphabet in colors. Synesthesia, a condition characterized by one sensory experience ...

To most readers, this text looks black and white. But to a few, each letter possesses a different color, and reading becomes more than what’s in black and white. Those who read in color live with ...

Emily looked strangely at her good friend Mackenzie when Mackenzie one day remarked, “You have a really pretty phone number.” Emily, of course, had no idea what her friend meant — until Mackenzie ...

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 ...

Daniel Tammet has memorized Pi to the 22,514th digit. He speaks ten different languages, including one of his own invention, and he can multiply enormous sums in his head within a matter of seconds.

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, ...