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实验用猫，在氯醛糖麻醉、三碘季铵酚制动下，用方波电脉冲刺激隐神经，配合极化电流阻断技术分别引起隐神经Ａ和Ｃ类纤维兴奋，在对侧大脑皮层ＳⅠ区和ＳⅡ区记录平均诱发电位（分别同称为Ａ－ＳⅠＥＰ、Ａ－ＳⅡＥＰ、Ｃ－ＳⅠＥＰ、Ｃ－ＳⅡＥＰ）。用双极同心圆电极刺激尾核头部不同部位。实验结果表明，只有刺激同侧尾核头部内侧浅表部位，才对Ｃ－ＳⅠＥＰ，Ｃ－ＳⅡＥＰ，Ａ－ＳⅡＥＰ有抑制作用，提示尾核头部对大脑皮层不同躯体感觉代表区有不同的调制作用，对ＳⅠ区Ｃ类纤维传入信息有独特的抑制作用。
Experimental cats, under the action of chloralose anesthesia and triiodide quaternary ammonium phenol, stimulated the saphenous nerve with square wave electric pulses and excited the saphenous nerve fibers A and C fibers respectively in coordination with the polarized current blocking technique. In the contralateral brain The mean evoked potentials (S-EP, A-SIIEP, C-SIEP, C-SIIEP) were recorded in the cortical S I and S II regions. Using bipolar concentric electrodes to stimulate the different parts of the caudate nucleus. The experimental results show that only stimulating the medial superficial part of the ipsilateral caudate nucleus can inhibit the expression of C-SⅠEP, C-SⅡEP and A-SⅡEP, suggesting that the caudate nucleus has different effects on the different regions of somatosensory representation in the cerebral cortex Modulation, the S Ⅰ area C fiber information has a unique inhibitory effect.