Different tastes can be detected on all parts of the tongue by taste buds,[99] with slightly increased sensitivities in different locations depending on the person, contrary to the popular belief that specific tastes only correspond to specific mapped sites on the tongue.[100] The original tongue map was based on a mistranslation of a 1901 German thesis by Edwin Boring. In addition, there are not 4 but 5 primary tastes. In addition to bitter, sour, salty, and sweet, humans have taste receptors for umami, which is a savory or meaty taste.
