High school textbooks call it the tongue map — that colorful illustration that neatly divides the human tongue into sections according to taste receptors. There is the tip of the tongue for sweet, the sides for sour and salty, and the back of the tongue for bitter. But recent studies show that while scientists still have much to learn about receptors, the map, at least, is wrong
I had a hard time believing their neat little map in the first place. And I thought it had been disproved some time ago. But the New York Times is making it sound like it is something that they just found out.