Fig. 2From: Can vibrotactile stimulation and tDCS help inefficient BCI users?Vibrotactile stimulation, tDCS, and sham stimulation. This represents stimulation sessions for the vibrotactile stimulation, tDCS, and sham stimulation groups. (A) represents vibrotactile stimulation, (B) represents tDCS, and (C) represents sham stimulationBack to article page