摘要
Objective： To investigate the distribution features of somatosensory cortical evoked potential map with augmented blocking of the sensation transmission along meridians. Method： The EEG-4400 electro-encephalogram （EEG） and ND-1 brain electrical activity mapping were adopted on 11 volunteers with remarkable sensation transmission along meridians, showing that the sensation can transmit to head and face after stimulating the points below the knee joints. Also, special observation was made on accurate location of somatosensory cortical evoked potential map in l0 people without sensation transmission. Result： Observation on 11 vohmteers with remarkable transmission along the Three Foot-yang Meridians showed that they presented with concurrent high potential reactions in somatosensory cortical lower limbs and face without blocking the augmented sensation transmission along the meridians; however, when mechanical pressure was exerted to block the sensation transmission, only one reaction in the lower limbs occurred in the somatosensory cortical evoked map and the other one in the face disappeared. Conclusion： Peripheral tissue evoking is the decisive factor for transmission along the meridians.
目的:探讨加压阻滞循经感传时皮层体觉诱发电位地形图的分布特点。方法:应用EEG 4400型脑电图仪和ND-1型脑地形图仪对11名循经感传显著的志愿者,刺激足三阳经膝关节以下穴位所引起的感传均可上行到头面部。另外,还对10名无感传者的皮层体觉诱发电位地形图的定位精确性进行了专门的观察。结果:对11名足三阳经循经感传显著的志愿者观察的结果表明,未加压阻滞循经感传时,在皮层体觉区的下肢和面部代表区同时出现了高电位反应。当以机械压迫阻滞感传,皮层体觉诱发电位地形图上只在下肢代表区出现一个反应,面部代表区的反应消失。结论:外周动因激发是产生循经感传现象的决定性因素。
