High-Frequency Vibrating Stimuli Using the Low-Cost Coin-Type Motors for SSSEP-Based BCI

Figure 2

Experiment procedure for left and right-hand SA tasks. (a) illustrates a screen flow that was displayed to the subjects. Each subject randomly engaged in left or right attention of 3 s for 90 trial repetitions (45 trials for each side). (b) shows stimulation of the coin motor which induced vibration frequency to the subjects every 2 to 8 s of the task procedure.

(a)

(b)