SIMULTANEOUS EEG 10-HZ DESYNCHRONIZATION AND 40-HZ SYNCHRONIZATION DURING FINGER MOVEMENTS
SIMULTANEOUS EEG 10-HZ DESYNCHRONIZATION AND 40-HZ SYNCHRONIZATION DURING FINGER MOVEMENTS
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DOI：
10.1097/00001756-199212000-00006
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发表时间：
1992-12-01
期刊：
影响因子：
1.7
通讯作者：
NEUPER, C
中科院分区：
文献类型：
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作者：
PFURTSCHELLER, G;NEUPER, C
在自主起搏、自愿的右手手指运动期间，使用覆盖左侧感觉运动皮层的紧密间隔电极记录EEG。三个右撇子作为臣民。通过计算ERD时程和ERD图，在10 Hz频带（10-12 Hz）和4个40 Hz频带（34-36、36-38、38-40、40-42）中分析EEG，其中ERD的特征在于运动相关频带功率降低。在所有三个科目接近C，局部10 Hz的ERD被发现，开始约2秒前的运动开始，并继续在运动过程中。沿着该10 Hz ERD，在运动开始周围嵌入40 Hz振荡的局部和短暂（约0.5 s）爆发。这可以被解释为表明，运动的规划是伴随着中央mu节奏和40 Hz振荡的产生的去极化。
NINETEEN-CHANNEL, EEG was recorded with closely spaced electrodes overlaying the left sensorimotor cortex during self-paced, voluntary right finger movements. Three right-handed people served as subjects. The EEG was analysed in the 10 Hz band (10-12 Hz) and in four 40 Hz bands (34-36, 36-38, 38-40, 40-42) by calculation of ERD time courses and ERD maps, whereby a ERD is characterized by a movement-related band power decrease. In all three subjects a close to C, localized 10 Hz ERD was found, starting about 2 s prior to movement onset and continuing during movement. Along with this 10 Hz ERD a localized and short-lasting (about 0.5 s) burst of 40 Hz oscillations was embedded around movement onset. This can be interpreted as indicating that planning of movement is accompanied by a desynchronization of central mu rhythm and a generation of 40 Hz oscillations.