Figure 5

Schematic of the cardiac-synchronized stimulation. (a) Electrocardiogram (ECG) trace along with a stimulation burst with respect to the R-peak highlighted by the dashed lines in the ECG. (b) Detailed view of biphasic pulses applied per stimulation burst. C current amplitude, PW pulse width, NP number of pulses, F frequency, D delay between R-peak and stimulation onset.