Prediction of arm trajectory from a small number of neuron activities in the primary motor cortex
Prediction of arm trajectory from a small number of neuron activities in the primary motor cortex
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DOI：
10.1016/j.neures.2006.02.012
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发表时间：
2006-06-01
影响因子：
2.9
通讯作者：
Iijima, Toshio
中科院分区：
文献类型：
--
作者：
Koike, Yasuharu;Hirose, Hideaki;Iijima, Toshio
根据初级运动皮层（MI）中记录的神经元活动重建猴手臂运动。我们记录了单神经元活动从猴子的MI，而动物进行手臂达到任务。首先，我们从神经元的活动中重建肌电信号。肌电信号的可靠重建与神经元活动的线性总和。接着，我们用人工神经网络模型从重建的肌电信号重建关节角度。重建的手位和肘位轨迹与实际手臂运动具有良好的相关性。该模型适当地反映了解剖学特征。(c)2006年Elsevier爱尔兰有限公司和日本神经科学学会。所有的紧身衣保留。
Monkey arm movement was reconstructed from neuron activities recorded in the primary motor cortex (MI). We recorded single neuron activities from a monkey's MI, while the animal performed an arm reaching task. We also recorded electromyographic (EMG) activity and movement trajectories during the task.First, we reconstructed the EMG signals from the neuron activities. The EMG signals were reliably reconstructed with a linear summation of the neuron activities. Next, we reconstructed joint angles from the reconstructed EMG signals with an artificial neural network model. The reconstructed trajectories of the hand position and elbow position showed good correlation with the actual arm movement. This model appropriately reflected the anatomical characteristics. (c) 2006 Elsevier Ireland Ltd and the Japan Neuroscience Society. All tights reserved.