Fig. 15.

Bilateral recordings of muscle sympathetic nerve activity, together with ECG, blood pressure and respiration, during sinusoidal galvanic vestibular stimulation (GVS) at 0.08 Hz in one subject. Overall, sympathetic outflow was similar between the two sides, but close inspection revealed subtle differences. In the expanded sections, the sympathetic bursts have been shifted back 1.25 s in time to account for peripheral conduction delays, allowing those bursts aligned with the cardiac cycle (‘c’) or vestibular stimulus (‘v’) to be identified. Reproduced from (93), with permission.