Comparison of Modern Highly Interactive Flicker-Free Steady State Motion Visual Evoked Potentials for Practical Brain–Computer Interfaces
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Paper
Link: https://www.mdpi.com/2076-3425/10/10/686
Year: 2020
Summary
- to reduce uncomfortable user experience, visual fatigue and high mental load, use motion-based stimulation
- test visual stimuli: pendulum-like movement, a flipping illusion, a checkerboard pulsation, checkerboard inverse arc pulsations, and reverse arc rotations
- pendulum-like movement 100% accuracy and ITR 33.92 bits/min
Methods
- 9 subjects, 18 trials, 4 targets, foveal BCI spelling test
Results
- all of the tested SSMVEP stimuli can easily induce a strong steady-state response, >97% accuracy
- less exhausting and more comfortable
- movement based stimulations, harmonic component is fairly visible
- rotational based stimuli, only the fundamental component is visible