The tongue does not have zones specializing in specific tastes. It turns out this myth started when Harvard Psychologist Edwin G. Boring mistranslated a German paper written in 1901 titled “Zur Psychophysik des Geschmackssinnes.” The tongue paper, written by German Scientist D.P. Hanig, outlined Hanig’s research on the four known basic tastes. He put together a group of subjects and tested the main tastes on each of them on various parts of their tongues until he figured he had a good map put together on where they tasted various tastes the most.
This myth endured until the 1970′s when scientists tested tongue
maps and debunked Hanig’s paper.