Plattig K H, Innitzer J
Pflugers Arch. 1976 Jan 30;361(2):115-20. doi: 10.1007/BF00583454.
Single human taste papillae in 5 young test subjects were electrically stimulated 84 times each with a silver wire (0.4 mm tip diameter) versus a 5 x 3.5 cm2 reference electrode on the left wrist of the subject. The electrical pulses were positive (54 papillae) or negative (45 papillae) of 0.5 msec duration and had a frequency of 50, 100, 200, 400, 600 or 800 Hertz. For control 45 papillae were merely touched by the electrode without current stimulation. Significant gustatory and tactile results (x2-test, P less than or equal to 0.05) signaled by the subjects were: a) on anodic stimulation 50 +/- 5% of the touched papillae gave overall taste responses, namely 22.2% sour, 3.8% bitter and 1.8% salty; the rest were mixed sensations. Sweet was not reported in these final experiments; b) on cathodic stimulation 42.2 +/- 5% of the papillae responded with taste, which again were reported as 22.2% sour, 2.2% salty, the rest mixed; c) on mere touching there were hardly any gustatory sensations reported. - These results indicate only a relative specifity for each single human taste papilla and its taste fibres.
在5名年轻受试对象中，用一根银线（尖端直径0.4毫米）对单个舌乳头进行84次电刺激，对照电极是置于受试对象左手腕的一个5×3.5平方厘米的参考电极。电脉冲持续时间为0.5毫秒，呈正向（54个舌乳头）或负向（45个舌乳头），频率为50、100、200、400、600或800赫兹。作为对照，45个舌乳头仅被电极触碰而无电流刺激。受试对象报告的显著味觉和触觉结果（χ²检验，P≤0.05）为：a）在阳极刺激下，50±5%被触碰的舌乳头产生总体味觉反应，即22.2%为酸味、3.8%为苦味、1.8%为咸味；其余为混合感觉。在这些最终实验中未报告甜味；b）在阴极刺激下，42.2±5%的舌乳头产生味觉反应，同样报告为22.2%为酸味、2.2%为咸味，其余为混合感觉；c）仅触碰时，几乎未报告有味觉感觉。——这些结果仅表明每个单个人类舌乳头及其味觉纤维具有相对特异性。
