Disclosed herein is an adaptive brain-computer interface device. The brain-computer interface device includes a stimulus generation unit, a signal collection unit, a preprocessing unit, an analysis unit, and a stimuli sequence determination unit. The stimulus generation unit generates stimuli and applies the stimuli to a user. The signal collection unit records the user's Electroencephalogram (EEG) signals generated by the stimuli. The preprocessing unit extracts the feature of P300 on the basis of one of the stimulus from the EEG signals. The analysis unit determines whether P300 is present in the signal extracted by the preprocessing unit. The stimuli sequence determination unit determines the sequence of the stimuli of the stimulus generation unit by inferring a current state from the observations of the analysis unit and selecting an optimum stimulus for the current state.
ADAPTIVE BRAIN-COMPUTER INTERFACE DEVICE