Decoding Movements of the Upper Limb from EEG

A neuroprosthesis can restore movement functions of persons with spinal cord injury. It benefits from a brain-computer interface (BCI) with a high number of control classes. However, classical sensorimotor rhythm-based BCIs can often only provide less than 3 classes, and new types of BCIs need to be developed. We investigated whether low-frequency time-domain signals (i.e. movement-related cortical potentials) can be used to classify hand/arm movements of the same limb. A BCI based on attempted movements may be used to control a neuroprosthesis more naturally and provide a higher number of control classes.