Figure 6. AIH enhances the gain and range of the sympathetic baroreceptor reflex.

Averaged sigmoidal function curves derived from baroreflex tests of baseline (before AIH, dashed line) and 60 min after the last hypoxic episode (after AIH, straight line). The gain of the curves was determined by first derivative across the full range of MAP. For each curve upper plateau, lower plateau and maximum gain represent averages for 8 experiments. Error bars represent s.e.m. for upper plateau, lower plateau and maximum gain for averaged baroreflex function curves.