... face test, and efferent sympathetic function using heart rate and blood pressure responses to four stress tests: (i) low-level cognitive stress, (ii) high-level cognitive stress, (iii) hand immersion in ice water (cold pressor test) and (iv) isometric sustained hand-grip. Haemodynamic responses...

... plethysmography. Simultaneous electrodermal responses to the same stimuli were recorded from a hand and a foot. Vasodilator responses to body warming were also recorded. 2. Significant impairment of these vasomotor reflexes in diabetic patients with neuropathy indicates that the sympathetic vasomotor system can...