TIME-QUALITY TRACKING OF MONOSODIUM GLUTAMATE, SODIUM SACCHARIN, AND A CITRIC ACID-SACCHARIN MIXTURE

[摘要] The temporal patterns of taste-quality descriptors evoked by 1000-ms duration stimulus liquids flowed through a closed delivery system over the anterodorsal tongue tip region were indicated using touch-typing on a computer keyboard. Single keys corresponded to the taste words of a 23 item code. A computer monitor displayed for subjects the keys pressed and when they were pressed, starting at stimulus delivery. For 2 mM sodium saccharin (NaSac), 75% of the responses were sweet, 6.5% sugar; for NaSac in 10 mM citric acid (ArtLem), 43% sour, 20% citrus, and 11% sugar; for 214 mM monosodium glutamate (MSG), 28% salty, 14% sour, and 10% 1st soapy, then no taste, and finally bitter. Distilled water received no taste on all trials. Response durations were 657 ms for ArtLem, 594 ms for NaSac, 577 ms for MSG. MSG yielded multiple quality responses on 25.5% of the trials; ArtLem, 9%; and NaSac, 1%. These results are compared with temporal patterns for taste intensity and with unrestricted verbal descriptions of the solutions.

[发布日期] 1991-05-01

[关键词] TASTE;TIME;TRACKING;REACTION TIME;QUALITY;UMAMI;SACCHARIN;CITRIC ACID;TASTE MIXTURES;MSG;TEMPORAL PATTERNS