Davies T W
Neurosci Lett. 1985 Oct 10;60(3):375-80. doi: 10.1016/0304-3940(85)90606-8.
Variations in soleus H-reflex threshold following single conditioning stimuli to tibialis anterior afferents were studied in man by probit analysis of quantal electromyographic responses. The H-reflex threshold was elevated in 6 out of 7 subjects (conditioning-test interval, 2 ms) when conditioning strengths were greater than about 0.70 X tibialis anterior motor threshold: the degree of elevation was exponentially related to conditioning strength. Analysis of response variability indicated that in some cases weaker conditioning was also effective. These findings are consistent with the view that reciprocal inhibition effectively modulates the threshold, rather than the amplitude, of proprioceptive reflex discharge.
通过对肌电图量子反应进行概率分析，研究了人类在对胫前肌传入神经进行单次条件刺激后比目鱼肌H反射阈值的变化。当条件刺激强度大于约0.70×胫前肌运动阈值时，7名受试者中有6名的H反射阈值升高（条件刺激 - 测试间隔为2毫秒）：升高程度与条件刺激强度呈指数关系。对反应变异性的分析表明，在某些情况下较弱的条件刺激也有效。这些发现与以下观点一致，即交互抑制有效地调节本体感受反射放电的阈值而非幅度。
