Development of bidirectional brain-machine interface using electrocorticogram to restore motor functions of arms for paralyzed patients

在这项研究中，我们已经开发了一个双向脑机接口，操作假肢与触觉传感器使用皮层电图（ECoG）记录的电极植入人体感觉运动皮层。一些由于中风或创伤而严重瘫痪的患者被证明能够仅使用他们的ECoG信号通过成像他们瘫痪肢体的一些运动来操作假肢。患者操作假肢通过抓取和释放来操纵一些物体。此外，我们还研制了一种由脑磁图（MEG）信号控制的假肢。

In this study, we have developed a bidirectional brain-machine interface to operate a prosthetic arm with tactile sensor using the electrocorticogram(ECoG) recorded by the electrodes implanted on human sensorimotor cortices. Some severely paralyzed patients due to stroke or trauma were shown to be able to operate the prosthetic arm only using their ECoG signals by imaging some movements of their paralyzed limbs. The patients operated the prosthetic arm to manipulate some objects by grasping and releasing. Furthermore, we have developed a prosthetic arm to be controlled by signals of magnetoencephalogram(MEG).