Reconstruction of Motor Function by Combining Electroencephalogram (EEG) with Functional Electrical Stimulation (FES)

摘要

The increase of stroke patients have become a great deal in these days. Most of the patients are hemiplegia, but they can recover their motor abilities by doing rehabilitation. In the aspect of rehabilitation, we focus on the patient's voluntary movement. It was shown that the repeated voluntary movement had highly rehabilitation effect. But, after the deficit, the motor command from the brain is interrupted especially for the heavily injured patients. So, in this research, we aim to construct a rehabilitation system for stroke patients by combining electroencephalogram (EEG, intention) with Functional Electrical Stimulation (FES, sensory feedback), which can reconstruct a closed-loop between the motor command and sensory feedback loop. In the present paper, we discuss how to extract clear Event Related Desynchronization (ERD, specific brain waves) under healthy non-trained subjects. It is shown that FES voltage changes has a possibility to extract clear ERD. And the combination of motor imagery with FES causes some good effect for the following imagery task.