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首页> 外文期刊>The journals of gerontology.Series A. Biological sciences and medical sciences >Influences of aging on taste perception and oral somatic sensation.
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Influences of aging on taste perception and oral somatic sensation.

机译：衰老对味觉和口腔躯体感觉的影响。

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BACKGROUND: Many elderly persons report reduced taste perception of the foods they eat. Any disturbance of taste and oral somatic sensations can induce this phenomenon. To determine the cause of decreased taste perception in older persons, the authors investigated age-related changes in taste perception and somatic sensations in the anterior tongue. METHODS: Thirty healthy young and elderly persons participated in this study. Recognition thresholds of four basic tastes (sweet, salty, sour, and bitter) and the threshold of irritating sensation induced by capsaicin were measured by local stimulation using filter-paper disks. Two-point discrimination thresholds were measured to evaluate the spatial acuity of touch sensation. All measurements were carried out at the tip of the dorsal tongue. RESULTS: The recognition thresholds of all four basic tastes of elderly participants were significantly higher than those of young participants. On the contrary, age-associated changes were not observed in 2-point discrimination and capsaicin sensation. CONCLUSIONS: Significant age-associated deterioration was observed in taste but not somatic sensations such as touch and burning pain in the tongue, showing that aging affects taste perception and oral somatic sensations differently. This suggests that decreased taste perception of foods in elderly people may be caused primarily by perceptual loss of taste among oral sensations.
机译：背景：许多老年人报告说他们吃的食物的味觉降低。口味和口腔躯体感觉的任何干扰都可能导致这种现象。为了确定老年人口感下降的原因，作者调查了与年龄相关的前舌味觉和躯体感觉变化。方法：30名健康的年轻人和老年人参加了这项研究。使用滤纸片通过局部刺激来测量四种基本口味（甜，咸，酸和苦）的识别阈值和辣椒素引起的刺激感的阈值。测量两点鉴别阈值以评估触摸感觉的空间敏锐度。所有测量均在背侧舌尖进行。结果：老年参与者的所有四种基本品味的识别阈值均显着高于青年参与者。相反，在两点歧视和辣椒素感觉中未观察到与年龄相关的变化。结论：观察到味觉与年龄相关的显着恶化，但未觉察到诸如舌头的触摸和灼痛等躯体感觉，表明衰老对味觉和口腔躯体感觉的影响不同。这表明，老年人对食物的味觉下降可能主要是由于口腔感觉中的味觉丧失引起的。

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