Some people experience a crossover in senses. Known as synesthesia, it can manifest as "seeing" music in colors, or "tasting" words. Typically thought to be fairly rare in the general population, ...
In spatial-sequence, or number form synesthesia, numbers, months of the year, and/or days of the week elicit precise locations in space (for example, 1980 may be "farther away" than 1990), or may ...