diagnostic procedure gustatory testing 2023-04-11T12:00:00Z gustatory function testing A medical test that evaluates the ability to taste. The tests are either chemical or electrical in nature. Chemical testing uses the natural stimuli and chemical tastants (sweet, sour, salty, bitter, and umami) to assess taste, whereas electrical testing adopts electrical currents applied directly to the surface of the tongue. Other investigations are employed in the assessment of gustatory dysfunction, such as certain imaging techniques, though these are not as useful in quantifying taste disorders. PMID:33620811 taste function test