Visual-Electrotactile Stimulation Feedback to Improve Immersive Brain-Computer Interface Based on Hand Motor Imagery

<div>Immersive VR-BCI system. (a) The experimental setup comprised an EEG amplifier, an HMD, two electrotactile stimulation (ES) devices, and a PC. (b) UnlimitedHand (UH) device to supply electrotactile stimulation feedback. (c) Visual feedback displayed by an HMD. (d) Virtual arm animations of both limbs for the MI tasks (G: grasping, F: flexion, and E: extension).</div>

Computational Intelligence and Neuroscience

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Figure 1

Figure 1: Visual-Electrotactile Stimulation Feedback to Improve Immersive Brain-Computer Interface Based on Hand Motor Imagery 