Non invasive analysis for the representation of body image by PET and TMS

人可以想象身体的运动(运动想象)，而不需要实际执行运动。这表明我们用特定的身体意象来处理我们的身体图式。我们证明，肌腱机械振动可以通过运动错觉来调节身体图式。我们还展示了这种运动错觉激活了与运动相关的皮质区域，如M1，这可能是产生运动感觉的原因。这种运动错觉可以通过肌腱振动时执行的运动想象来调节。当运动表象与运动错觉方向呈激动性时，错觉增强，而对抗性表象降低错觉角度。这种运动-错觉-表象干扰激活了许多皮层区域，如扣带运动区、辅助运动区、背侧运动前区。

Man can image body movement (motor imagery) without actual execution of movement. This indicates we handle our body schema with a certain body image. We demonstrated that the body schema could be modulated by motor illusion, which was applied by mechanical tendon vibration. We also showed this motor illusion activated motor related cortical areas, such as M1, that might be responsible for generation of the motor sensation.This motor illusion could be modulated by motor imagery that was performed during tendon vibration. If the motor imagery was agonistic to the direction of motor illusion, the illusion was enhanced, while antagonistic imagery reduced illusory angles. This motor-illusion-imagery interferences activated many cortical areas, such as cingulated motor area, supplementary motor area, dorsal premotor area.