Fig. 5. Pevkinin-2 increases the speed of the pyloric rhythm. (Left) Scatter plot of the pyloric cycle frequency during superfusion of PevK-2 (10^-6 mol l^-1) as a function of the pyloric cycle frequency during saline superfusion. Each data point represents the mean (±s.d.) cycle frequency from a single experiment during PevK-2 superfusion and its pre-application control (N=39). Data points located along the diagonal, unity line indicate experiments in which PevK-2 application did not change the ongoing cycle frequency. (Right) PevK-2 (10^-6 mol l^-1) application increased the mean pyloric cycle frequency across preparations (N=39; ^*P<0.0001).