Fig. 1From: Autonomous control of cardiovascular reactivity in patients with episodic and chronic forms of migraineParameters of neurogenic vascular reactivity. The numbers show mean values while the error bars represent the standard error of the mean. Legend: HG – handgrip test, CSV – cold-stress vasoconstriction, IBPVM – increment of mean blood pressure during Valsalva Maneuver, BPV – blood pressure variabilityBack to article page