PERCEIVED LOCUS AND INTENSITY OF ELECTROCUTANEOUS STIMULATION
PERCEIVED LOCUS AND INTENSITY OF ELECTROCUTANEOUS STIMULATION
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DOI：
10.1109/10.83569
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发表时间：
1991-07-01
影响因子：
4.6
通讯作者：
ROLLMAN, GB
中科院分区：
文献类型：
--
作者：
HIGASHIYAMA, A;ROLLMAN, GB
两个实验研究了皮肤电刺激的感知轨迹和强度。 在实验1中，21名受试者报告了四个电极部位、两个电流方向、两个脉冲特征（单脉冲与多脉冲）和两个感觉水平（检测与疼痛）的各种组合的感知轨迹。 在实验2中，16名受试者报告了广泛的电流水平和两种极性条件下的感知轨迹和强度。 主要结果是：1）在检测水平下，感觉可能在阴极下被感知，而在两个电极下则可能在强烈水平下被感知; 2）“阴极”定位逐渐被“两个”定位所取代（3）主观强度阴极下大于阳极下; 4）阴极位置对感知轨迹的影响仅在部分电极对上存在。 这些结果挑战了通过成对电极对皮肤的电刺激在阴极下被感知的简单假设。
Two experiments investigated perceived locus and intensity for electrocutaneous stimulation. In Experiment 1, 21 subjects reported the perceived locus for various combinations of four electrode sites, two current directions, two pulse characteristics (single versus multiple), and two sensation levels (detection versus pain). In Experiment 2, 16 subjects reported the perceived locus and intensity for a wide range of current levels and two polarity conditions. The main results were 1) sensations were likely to be perceived under the cathode at detection levels, but under both electrodes at intense levels; 2) the "cathode" localization was gradually supplanted by "both" ("anode" and "cathode") localization with increasing current; 3) subjective intensity under the cathode was greater than that under the anode; 4) the effects of cathode position on perceived locus were found for only some pairs of electrodes. These results challenge the simple hypothesis that electrical stimulation of the skin through paired electrodes is perceived under the cathode.