Katims J J, Long D M, Ng L K
Appl Neurophysiol. 1986;49(1-2):86-91.
The effects of transcutaneous electrical nerve stimulation (TNS) of a constant alternating current administered at various frequencies and waveforms to volunteer human subjects were investigated. The TNS was found to evoke noncutaneous subjective sensations in all the subjects. Only with a sinusoid waveform of TNS were distinct frequency ranges of the stimulation associated with specific noncutaneous subjective sensations. Our findings suggest that nervous tissue is capable of discriminating the waveform parameters of an electrical stimulus.
研究了以各种频率和波形给予志愿受试者恒定交流电的经皮电神经刺激（TNS）的效果。发现TNS在所有受试者中均引起非皮肤主观感觉。仅在TNS的正弦波形下，刺激的不同频率范围与特定的非皮肤主观感觉相关。我们的研究结果表明神经组织能够区分电刺激的波形参数。
