Additional file 1: of Precise estimation of human corticospinal excitability associated with the levels of motor imagery-related EEG desynchronization extracted by a locked-in amplifier algorithm

Figure S1. Peak-to-peak MEP amplitudes during the resting state and motor imagery of right wrist extension at ERD 35% and ERD 70%, calculated by the online FFT or LIA algorithm. The averaged MEP amplitudes were significantly greater in Condition 2 “FFT, ERD35%” (p补充图S1：通过在线快速傅里叶变换（Fast Fourier Transform, FFT）或LIA算法计算得到的、右手腕伸展动作在静息状态与运动想象状态下，事件相关去同步化（Event-Related Desynchronization, ERD）分别为35%与70%时的峰峰值运动诱发电位（Motor Evoked Potential, MEP）幅值。其中条件2"FFT，ERD35%"的平均MEP幅值显著更高（p