A comparison of two electric taste stimulation devices.
A comparison of two electric taste stimulation devices.
复制标题
两种电味觉刺激装置的比较。
DOI：
10.1016/j.physbeh.2007.05.010
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发表时间：
2007
影响因子：
2.9
通讯作者：
Lawless,HarryT
中科院分区：
文献类型：
--
作者：
McClure,ScottT;Lawless,HarryT
舌头的电刺激通常用于味觉功能障碍的临床评估，可以产生多种感觉，包括金属味的报告。两项研究比较了对自制电刺激器（1.6 V 电池，阳极侧暴露）和临床电味计 (Rion TR-06) 的反应。放置在舌前背侧表面的电池产生的感觉在强度和质量上与临床电味计产生的感觉相似，1.6 V 电池在舌尖上产生的感觉强度相同，在电味计的 33–56 μA 范围内。第二项研究检查了舌头两侧三个区域的反应。两种设备的菌状乳头较低区域的反应均有所下降，但下降速度不同。需要较高的电流水平来匹配较低密度区域的电池，这表明较大电池表面积的空间总和。仅在一名受试者中发现了一致的横向差异模式。无论是否提供单词列表，质量描述的频率相似，金属、酸、疼痛和苦味是两种电刺激最常提到的单词。对电池装置和味觉计的响应在强度、引起的质量、缺乏偏侧性效应以及在菌状乳头密度较低的区域中的响应减弱方面表现出明显的相似性。该电池装置可以提供一种廉价的便携式替代味觉计以用于味觉的临床测试。
Electrical stimulation of the tongue, commonly used in clinical evaluations of taste dysfunction, can produce a variety of sensations including reports of metallic taste. Two studies compared responses to a fabricated electrical stimulator (a 1.6 V battery, anode side exposed) and a clinical electrogustometer (Rion TR-06). Batteries placed on the anterior dorsal tongue surface produced sensations similar in intensity and quality to those produced by the clinical electrogustometer, with equal intensity on the tongue tip for the 1.6 V battery in the range of 33–56 μA from the electrogustometer. A second study examined responses on three areas of the tongue on each side. Responses declined for areas lower in fungiform papillae for both devices, but at different rates. Higher current levels were required to match the battery in lower density areas, indicating spatial summation for the larger battery surface area. A consistent pattern of lateral differences was seen in only one subject. Quality descriptions were similar in frequency whether or not a word list was provided, with metallic, sour, pain and bitter being the most frequently mentioned words for both electric stimuli. Similarities in response to the battery device and electrogustometer were evident in intensity, qualities evoked, lack of a laterality effect and decreasing response in areas with lower fungiform papillae density. The battery device may provide an inexpensive portable alternative to an electrogustometer for use in clinical testing of taste.