> I don't know the underlying mechanics that trigger this association, but it's quite consistent. I'm guessing that it's a side effect of how my memory of langu

> I don't know the underlying mechanics that trigger this association, but it's quite consistent. I'm guessing that it's a side effect of how my memory of language is organized, some processing trick my mind is using to make the storage more efficient. Your description seems closer to what I read about synesthesia than the Google Art experiment. From my reading, it seems to be directly linked to the way the brain process stimulus rather than to memory. Brain scans show that for people experiencing synesthesia some stimulus activate parts of the brain unrelated to their processing. Some drugs (LSD notably) seem to be able to trigger this effect temporarily for people not usually experiencing it.