Tongue map

Tongue Map

The Tongue Map is a common misconception that different sections of the tongue are exclusively responsible for different basic tastes. This concept was introduced by D.P. Hanig in 1901 and has been widely accepted and taught in schools. However, it has been debunked by later research.

File:Tongue map-en.svg

A depiction of the tongue map.

History

The Tongue Map was first proposed by D.P. Hanig, a German scientist, in 1901. He conducted a study on taste sensitivity across different areas of the tongue and found slight variations. However, his results were misinterpreted and exaggerated, leading to the creation of the tongue map.

Misconception

The tongue map suggests that the tip of the tongue tastes sweet, the back tastes bitter, and the sides taste salty and sour. However, this is not accurate. All taste sensations come from all areas of the tongue, although some areas may be slightly more sensitive to certain tastes.

Taste Buds

Taste buds are the true mediators of taste. They are located all over the tongue, and each one can detect a variety of tastes. Taste buds contain taste receptor cells which send signals to the brain when activated by taste substances.

Taste Sensations

There are five basic taste sensations: sweet, salty, sour, bitter, and umami. Umami, which is the taste of glutamate, was added to the list of basic tastes relatively recently, in the early 20th century.

See Also

• Taste
• Taste bud
• Gustatory system

References

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