The role of skin coupling in the determination of vibrotactile spatial summation
The role of skin coupling in the determination of vibrotactile spatial summation
复制标题
皮肤耦合在确定振动触觉空间总和中的作用
DOI：
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发表时间：
1969
期刊：
影响因子：
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通讯作者：
C. Sherrick
中科院分区：
文献类型：
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作者：
J. Craig;C. Sherrick
进行了一系列的三个实验，以确定在20，80，和250 Hz的频率的绝对阈值和振动触觉刺激的幅度上的静态力和接触器面积的变化的影响。调查结果如下：（a）如果接触器穿透皮肤是恒定的，则振动阈值振幅福尔斯在250 Hz下以每加倍3 dB的速率下降，与先前的研究一致。（B）在恒定振幅下，振动触觉幅度不随面积的增加而增加。（c）接触器上的静态力的增加导致振动触觉幅度的增加。此外，改变接触器力可以移动振动触觉幅度函数的指数。一些讨论给出了本研究所提出的问题，特别是静态条件是否修改不仅波传播的力学，但也在组织中的神经系统的兴奋性的问题。
A series of three experiments was carried out to determine the effects of variation of static force and contactor area on both absolute thresholds and the magnitude of vibrotactile stimuli at frequencies of 20, 80, and 250 Hz. The findings were: (a) If contactor penetration into the skin is constant, vibratory threshold amplitude falls off at the rate of 3 dB per doubling at 250 Hz, in agreement with previous studies, (b) There is no increase in vibrotactile magnitude with increase in area at constant amplitude, (c) Increasing static force on the contactor produces an increase in the vibrotactile magnitude. Also, changing contactor force can shift the exponent of the vibrotactile magnitude function. Some discussion is given of the questions raised by the present research, in particular the question of whether static conditions modify not only the mechanics of wave propagation, but also the excitability of neural systems in the tissues.