The tongue has separate zones for each taste
| The tongue has separate zones for each taste | |
|---|---|
| FALSE | |
| "The tongue is divided into zones: sweet at the tip, salty and sour at the sides and bitter at the back." | |
| Domain | Food, Nutrition & Wellness |
| Tactic | False Context |
| Era | Historical |
| First seen | 1942 |
| Origin | A misreading of a 1901 German study in Edwin Boring's 1942 textbook, later printed in school textbooks worldwide |
| Last reviewed | 2026-10-29 |
| Further reading: books on Food, Nutrition & Wellness | |
The tongue map was taught in schools for decades. It came from a misreading of a 1901 paper by German scientist David Hänig, who found small differences in sensitivity around the tongue. In 1942, Harvard psychologist Edwin Boring presented the data in a way later interpreted as exclusive zones. Taste receptors for all basic tastes are found across the tongue.
The claim
Students were taught to locate tastes by placing solutions on different parts of the tongue.
What the evidence shows
- Small differences. Hänig found slight variations in sensitivity, not separate zones.
- Receptors everywhere. Taste buds containing receptors for sweet, salty, sour, bitter and umami are distributed across the tongue.
- Easy test. Placing salt on the tip of the tongue shows it can be tasted there.
Sources
- David P. Hänig, "Zur Psychophysik des Geschmackssinnes," Philosophische Studien 17 (1901).
- Jayaram Chandrashekar et al., "The receptors and cells for mammalian taste," Nature 444 (2006).