Noriko Nagata Daisuke Iwai Sanae H. Wake Seiji Inokuchi Non-verbal Mapping Between Sound and Color-Mapping Derived from Colored Hearing Synesthetes and Its Applications. 401-412 2005 conf/iwec/2005 ICEC http://dx.doi.org/10.1007/11558651_39 db/conf/iwec/icec2005.html#NagataIWI05