Zalkind M S, Koz'mian E I, Naĭdel' A V
Fiziol Zh SSSR Im I M Sechenova. 1975 Apr;61(4):518-29.
Various moments of preparation and performance of a simple voluntary movement were tested in man with the aid of somatosensory, auditory, and visual evoked responses. An obvious attenuation of somatosensory responses closely related to the movement but independent of the spontaneous EEG changes and unaffected by the ischaemic deafferentation of the active limb, was observed. The time course of the amplitude changes was different for separate components of the same evoked response. The evoked response to stimulation of the inactive limb and the auditory evoked response changed also, while the visual evoked response remained unchanged. The described changes cannot be explained by changes in the transmission via the specific pathways. The changes in the response early components are supposed to manifest facilitation or activation of the sensory-motor cortical neurons, and those of the late, generalized complex--a decrease in the ascending message from unspecific structures.
借助体感、听觉和视觉诱发电位，对人类进行简单随意运动的各个准备和执行阶段进行了测试。观察到与运动密切相关但独立于自发脑电图变化且不受活动肢体缺血性传入阻滞影响的体感反应明显减弱。同一诱发电位的不同成分，其振幅变化的时间进程有所不同。对非活动肢体刺激的诱发电位以及听觉诱发电位也发生了变化，而视觉诱发电位保持不变。所描述的这些变化无法用通过特定通路的传导变化来解释。反应早期成分的变化被认为体现了感觉运动皮层神经元的易化或激活，而晚期的、广泛的复合成分的变化则表明非特异性结构的上行信息减少。
