Figure 4From: Sensitivity of temporal heart rate variability in Poincaré plot to changes in parasympathetic nervous system activity Sensitivity of SD 1, SD 2 and CCM with changes in temporal dynamics. Sensitivity of SD 1, SD 2 and CCM with number of shuffled points N s . At each step the number of shuffled points increased by 50. Each time the signal has been shuffled for 30 times and its mean has been taken to calculated the sensitivity.Back to article page