Active BCI system that enables real time communication

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In this study, a new technique of brain computer interface(BCI) was proposed. This technique is combined an EEG measurement and transcranial stimulation to a brain which can change excitability of the neuron temporally as to extract EEG future. Repetitive transcranial magnetic stimulation(rTMS) or transcranial direct current stimulation(tDCS) was used. We investigated effects of these stimulation on the neuronal activity. Low frequency rTMS or the cathodal stimulation of tDCS has inhibited the neuronal activity and the anodal stimulation of tDCS has excited the neuronal activity.