PMC5074550_01
Multichannel surface EMG showed EMG bursts with variable durations in the triphasic pattern of the agonist and antagonist muscle activity resembling voluntary ballistic movement. FCR is flexor carpi radialis and ECR is extensor carpi radialis.
gr1.jpg
PMC5074550_01_gr1.jpg
f0005
The jerking movements demonstrated a triphasic pattern of the agonist and antagonist muscle activity resembling voluntary ballistic movements (Fig. 1).
The EEG-EMG jerk-locked back-average showed the late Bereitschaftspotential (late BP) in the central leads (Cz and C3) at 140 ms prior to the movement onset with amplitude of 8.5 and 5.9 muV in the spontaneous jerks.
gr2.jpg
PMC5074550_01_gr2.jpg
f0010
A steep rising negative potential was seen in the central leads (Cz and C3) beginning at 140 ms prior to the movement onset with amplitude of 8.5 and 5.9 muV consistent with the late Bereitschaftspotential (late BP) (Fig. 2).
The EEG-EMG jerk-locked back-average showed Bereitschaftspotential in all leads at 1100 ms prior to the movement onset with amplitude of 9.6-14.5 muV in the voluntary condition.
gr3.jpg
PMC5074550_01_gr3.jpg
f0015
In this circumstance, a slow rising negative potential was seen in all leads beginning at 1100 ms prior to the movement onset with amplitude of 9.6-14.5 muV (Fig. 3).