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Interesting. I have number-color synesthesia but that test does nothing for me; I couldn't make out the image at all. For that test to work I would think that o

Interesting. I have number-color synesthesia but that test does nothing for me; I couldn't make out the image at all. For that test to work I would think that one would literally have to "see" the color of a number almost as though it were a hallucination. I can only speak for myself obviously, but for me a number just invokes a certain color in my mind, almost as though the number has an aura. Two, for example, is blue-green, whereas five is just sort of black on white. But looking at a grey 2 on a background, I just see a grey 2 on a background... nothing more, unfortunately. It was interesting nonetheless, just thought I'd share my own experience.

joeyo 17y ago
I suspect that there are varying degrees of synesthesia that range from the aura you describe to full-on hallucination. I have a friend that has an aural-color synesthesia who tells me that listening to music in the car (or for that matter having a conversation) is very difficult because the colors get in the way of her driving. In any event, perhaps even in your case you could perform that test (or another like it) statistically significantly faster than persons without synesthesia.