The topographical technique of brain evoked potential was used to investigate the changes of the functional activities in primary cortical somatosensorv area(SI) during blocking of the propagated sensation along meridian (PSM) by the mechanical pressure.

• 应用脑诱发电位地形图技术观察加压阻滞循经感传时皮层第一体觉区(SI)机能活动的变化。