Mnemonism and Synesthesia

Are your a mnemonist or a synaesthete? Russian psychologist Aleksandr Luria has been credited with documenting the famous case of a Russian, Solomon Shereshevskii, who was both. He could deliberately memorize virtually unlimited amounts of information and also exemplified an interesting case of five-fold synaesthesia. If Solomon heard a musical tone played he would immediately see a color, touch would trigger a taste sensation, and so on. Some have suggested that superior autobiographical memory may be tied to time-space synaesthesia.