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Lingual tactile sensitivity: effect of age group, sex, and fungiform papillae density
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Lingual tactile sensitivity: effect of age group, sex, and fungiform papillae density
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Lingual tactile sensitivity: effect of age group, sex, and fungiform papillae density
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Journal Article
Lingual tactile sensitivity: effect of age group, sex, and fungiform papillae density
2017
Overview
Despite its contribution to food perception, lingual tactile sensitivity has been understudied. We hypothesized that sensitivity to threshold and suprathreshold tactile stimuli varies in the population and sought to determine proximate sources of variability. Forty-eight adults were tested for lingual threshold sensitivity via a modified letter identification task and suprathreshold sensitivity via estimation of stimulus size using magnitude estimation. In addition, taste bud density on the anterior tip of each panelist’s tongue was estimated by counting the number of fungiform papillae in a 0.317 cm
2
circumscribed area. Lingual tactile thresholds were significantly impacted by age group as subjects 40 years or older had higher thresholds than those in their 20s. Moreover, threshold sensitivity increased with increasing fungiform papillae count. Suprathreshold estimates of size were not affected by age group, sex, or fungiform papillae count.
