Halliday D M, Conway B A, Farmer S F, Rosenberg J R
Division of Neuroscience and Biomedical Systems, University of Glasgow, UK.
Neurosci Lett. 1998 Jan 23;241(1):5-8. doi: 10.1016/s0304-3940(97)00964-6.
Previous studies of neuronal oscillations in sensorimotor cortex in humans and primates have observed rhythmic 15-30 Hz activity, which is correlated with motor output. In humans, this work has been limited to magnetic recordings. In the present study we investigate if similar results can be obtained using electroencephalography (EEG). EEG recordings were made from over the sensorimotor cortex of five adult subjects who performed repeated periods of maintained wrist extension and flexion. Coherence analysis between EEG and electromyogram (EMG) recordings from these muscles revealed correlation in the 15-30 Hz range, with a synchronous correlation structure which matches that previously observed in humans and in paired cortical recordings from primates. We conclude that EEG is equally efficient at investigating functional aspects of these cortical rhythms during voluntary movement in humans.
先前对人类和灵长类动物感觉运动皮层神经元振荡的研究观察到有节奏的15 - 30赫兹活动，这与运动输出相关。在人类中，这项工作仅限于磁记录。在本研究中，我们调查使用脑电图（EEG）是否能获得类似结果。对五名成年受试者的感觉运动皮层进行EEG记录，这些受试者进行了重复的持续手腕伸展和屈曲动作。对这些肌肉的EEG和肌电图（EMG）记录进行相干分析，发现在15 - 30赫兹范围内存在相关性，其同步相关结构与先前在人类以及灵长类动物的配对皮层记录中观察到的结构相匹配。我们得出结论，在研究人类自愿运动期间这些皮层节律的功能方面，EEG同样有效。
