The word synesthesia is derived from the Greek words of syn (together) and aesthesis (perception), defining synesthesia as a joined perception. Synesthesia is an experience in which two or more senses are entwined with each other. For example, some synesthetes feel the colors that they see while other synesthetes see colors while hearing a specific musical note. A common type of synesthesia is grapheme-color synesthesia in which a synesthete sees a certain color in response to a specific grapheme such as a luminous green for the letter ‘D’. Grapheme-color synesthetes are often differentiated between projector and associator synesthetes. Projectors are grapheme-color synesthetes who see their synesthetic color within external space while, associators
