METHODOLOGY FOR NON-INVASIVE MAPPING OF HUMAN MOTOR CORTEX WITH ELECTRICAL-STIMULATION
METHODOLOGY FOR NON-INVASIVE MAPPING OF HUMAN MOTOR CORTEX WITH ELECTRICAL-STIMULATION
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DOI：
10.1016/0013-4694(88)90062-4
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发表时间：
1988-05-01
期刊：
影响因子：
--
通讯作者：
HALLETT, M
中科院分区：
文献类型：
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作者：
COHEN, LG;HALLETT, M
分析了从手、上臂、腿和嘴记录的运动诱发电位的不同技术。在以下情况下获得最佳结果：通过双极表面刺激器递送恒定电压刺激，将阳极定位在期望的头皮位置上并将阴极定位在阳极之前2.5cm处，保持低阻抗，并增加理论运动代表区域上的刺激强度直到实现500-1000μV的肌肉反应，然后在不同的头皮位置上递送相同的刺激。该技术允许在 1-2 小时内对不同身体部位表示进行双边映射。如此识别的区域很小，彼此之间以及与相应的体感区域明显分开。
Different techniques for mapping motor evoked potentials recorded from hand, upper arm, leg and mouth were analyzed. The best results were obtained when: delivering constant voltage stimuli through a bipolar surface stimulator, positioning the anode over the desired scalp location and the cathode 2.5 cm anterior to the anode, maintaining low impedances, and increasing the stimulus intensity over the theoretical motor representation area until a 500-1000 .mu.V muscle response is achieved and then delivering the same stimulus over different scalp locations. This technique allows bilateral mapping of the different body part representations in 1-2 h. Areas so identified are small, clearly separate from each other and from the corresponding somatosensory areas.