Fig. 2
From: B fibers are the best predictors of cardiac activity during Vagus nerve stimulation
Sample CNAP with corresponding heart rate measurement. Left) Averaged CNAP from the same waveform at increasing intensities (charge per phase from top to bottom: 0, 6nC, 12nC, 24nC). Right) The instantaneous heart rate data during the 10-s trial. The heart rate values during the last 5 s were averaged to produce a representative value for the trial (annotated, in bpm). Note the different Y-axis scales in certain plots