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Fig. 3 | eLight

Fig. 3

From: Remotely mind-controlled metasurface via brainwaves

Fig. 3

Brainwave signal processing: a the process of signal extraction and transmission; b coding sequences corresponding to the four attention intervals; c brainwaves for attention interval 0–25; d brainwaves for attention interval 25–50; e brainwaves for attention interval 50–75; f brainwaves for attention interval 75–100

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