What color is seven? How about the letter M? How would you describe the color of Wednesday?
For the majority of people, these are unanswerable and even nonsensical questions. But a person with synesthesia might well answer “steel blue,” “canary yellow” and “dark red almost magenta.” I know I would.
Several years ago I came upon the word “synesthesia” in a magazine. The writer went on to explain the term psychologists and neuroscientists use to describe the condition where some people “see” colors in numbers, letters or music.
The most current scientific hypothesis suggests this rare condition occurs when adjacent areas of the brain that perceive shapes and colors are cross-activated due to neural connections that aren’t “pruned.” (I picture it something like two plants whose roots are tangled.)