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Development of a flickering action video based steady state visual evoked potential triggered brain computer
Ji Eun Son1,1, Hyoseon Choi2,1, Hyunmi Lim3
1Department of Bioscience, College of Natural Science, Keimyung University, Daegu, Korea.
Background:
This study focused on developing an upper limb rehabilitation program. In this regard, a steady state visual evoked potential (SSVEP) triggered brain computer interface (BCI)-functional electrical stimulation (FES) based action observation game featuring a flickering action video was designed.
Objective:
In particular, the synergetic effect of the game was investigated by combining the action observation paradigm with BCI based FES.
Methods:
The BCI-FES system was contrasted under two conditions: with flickering action video and flickering noise video. In this regard, 11 right-handed subjects aged between 22-27 years were recruited. The differences in brain activation in response to the two conditions were examined.
Results:
The results indicate that T3 and P3 channels exhibited greater Mu suppression in 8-13 Hz for the action video than the noise video. Furthermore, T4, C4, and P4 channels indicated augmented high beta (21-30 Hz) for the action in contrast to the noise video. Finally, T4 indicated suppressed low beta (14-20 Hz) for the action video in contrast to the noise video.
Conclusion:
The flickering action video based BCI-FES system induced a more synergetic effect on cortical activation than the flickering noise based system.
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