DATA PROCESSING FOR SIMULTANEOUS NEUROMODULATION AND NEUROIMAGING

摘要

A method of processing EEG signals, comprising: receiving a set of EEG signals representing brain activity and artifacts from a plurality of electrodes, subject to an external stimulation which generates electrical artifacts and stimulates brain activity reflected in EEG signals; filtering a direct effect of the external stimulation on the EEG signals; performing a dimensionality reduction on the EEG signals; performing a separation operation on the reduced dimensionality EEG signals; and outputting a modified set of EEG signals from which the artifacts generated by the external stimulation, but not the response of the brain to the external stimulation, are suppressed. The separation operation may be a blind source separation operation.