For most of us, the boundaries between our bodily senses are clear-cut and rigid. But for a few rare individuals, the demarcation between vision and hearing, or between taste and touch, are less solid, with one bleeding into the other.
These people have a condition called "synesthesia," in which two or more of the senses are crossed. Some see colors when listening to music, while others associate tastes with shapes or words with colors.
A very small number of synesthetes can "taste" words.
A study finds that individuals with this last form of synesthesia—called "lexical-gustatory" synesthesia—can taste a word before they ever speak i, and that the word's meaning, not its sound or spelling, is what triggers this taste sensation.
What would it be like to taste words, to not only feel or see but to actually taste words like love, sorrow, passion, anger and hope. would the senses consume us?