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

Figure 1

Experiment environment for (a) steady-state somatosensory-evoked potential (SSSEP) data acquisition and (b) flow diagram illustration. An Arduino board controlled left and right coin motors which were attached to the subjects’ index fingers. The accelerometer measured the vibration frequency of the motor. The EEG amplifier transmitted the brain signal and vibration stimuli to the control laptop which managed the experiment procedure.

(a)

(b)