Fig. 6

Comparison of brain network connection strength differences. (A) 0.1–4 Hz, MI-BCI > REST; (B) 0.1–4 Hz, MI > REST; (C) 4–8 Hz, MI-BCI > MI; (D) 4–8 Hz, MI-BCI > REST; (E) 4–8 Hz, REST > MI-BCI; (F) 8–10 Hz, MI-BCI > REST; (G) 12–30 Hz, MI-BCI > MI; (H) 30–40 Hz, MI-BCI > REST; (I) 30–40 Hz, MI > REST.