Figure 4.
Effect of rostral (0–5–11–/4+10+15+) and caudal (4–10–15–/0+5+11+) scES at 2 Hz on supine blood pressure and heart rate. Illustrated from group 1 (A; n = 3) and group 2 (B; n = 4) are mean percent-change in systolic blood pressure (SBP), diastolic blood pressure (DBP), and heart rate (HR) from baseline (open triangles: rostral; black triangles: caudal stimulations) concurrent with increases in stimulator voltage. Supine voltage increased from 0 V to 10 V by 0.1 V and 0.5 V intervals. Electrode configuration and color map are presented on the right side of the figure; black boxes are cathode, red boxes are anode, and white boxes are inactive electrodes.