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Basic taste

Human taste sensory organs, called taste buds, appear to be receptive to relatively few chemical species as tastes. This contrasts markedly with the sense of olfaction, where very large numbers of different species can be differentiated.

There are currently thought to be five basic tastes:

Until recently, most Western sources listed only the first four of these flavors; in recent years, umame/savoury has become widely although not universally accepted.

For many years, books on the physiology of human taste contained diagrams of the tongue showing levels of sensitivity to different tastes in different regions. There is no scientific foundation for these "maps", which were based on a misinterpretation of old research.

In general, the sense of taste is often confused by smells that occur at the same time, and much of the everyday sensation of taste is at least partially derived from smell stimuli. Loss of the sense of smell (anosmia), for example when one has a cold, severely reduces one's sense of taste.

External Link

Monell chemical senses center: http://www.monell.org/

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