Figure 6. Effect of visuo-motor skill training and a control session on EMG–EMG coherence.
A and C, traces showing the size of EMG–EMG coherence around 13–35 Hz before (continuous line) and after (dashed line) the visuo-motor skill (A) and control session (C) in a single subject. B and D, the cumulant density function from the same subject before (continuous line) and after (dashed line) the visuo-motor skill training (B) and control session (D). The ordinate shows the size of the cumulant density function. The abscissa shows the time domain (milliseconds). The 95% confidence limit is given by the dashed horizontal line in A and C and by the continuous lines on either side of zero in band D.