How do I know if I have grapheme-color synthesia too?
There are certain online tests, but if you have it, and you read this page up until this point, you’d probably know if you have it or not. The grapheme-color synesthesia test is quite simple. You are shown numbers and letters one at a time. You choose the color you see in your head when you think of that number or letter. After you are done, wait a few minutes and take the test a second time. If you consistently pick the same color for all the numbers and letters and you genuinely took the test with colors you see in your head then you have grapheme-color synethesia. Further Reading Check out Wikipedia’s article about it.
