Figure 5. Summary data of beat-by-beat percentage changes in forearm vascular conductance following all spontaneous muscle sympathetic nerve activity bursts, non-bursts and white noise during saline infusion (A), and during phentolamine+angiotensin II co-infusion (α-adrenergic blockade; B).

Brackets denote significant differences from percentage changes in white noise. Values are means ±s.e.