Very interesting. My husband I watched a documentary on neurological "abnormalities" where they interviewed people who have synesthesia.
I believe one of the men or women had tastes associated with sound. So during an orchestra performance they would experience different tastes in their mouths.
No one in my family experiences synesthesia, although both girls were able to do mental math very early by closing their eyes and picturing the number of "items" we were working with. Mainly m&m's for C-dog!. I always thought it cool that if I asked them addition or subtraction when they were three(?) and they didn't know the answer, I would tell them to close their eyes and tell them to see the numbers of m$m's in their mind's eye. Then they instantly knew the answer.
