![]() ![]() This task was performed under three conditions: repeating the motion by memory, repeating the motion while watching it on a screen, and repeating the motion while seeing it in virtual reality (VR). Subjects were asked to follow the avatar’s motion, while the subject’s EEG and electromyography (EMG) signals were recorded and paired with avatar’s hand trajectory values. A virtual avatar for presenting different upper limb motions was developed. There are also only a few studies about how different training techniques may affect the accuracy of a motion reconstruction system. For amputees, this approach is not possible. Most related studies rely on a motion tracking system to record a sequence of hand coordinate values paired with biosignals, in order to train a mapping function between them. Reconstruction of a hand’s motion with electroencephalography (EEG) signals is a challenging problem that has not been solved yet.
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