Blocking Ih with ZD-7288 increased the pyloric burst period and decreased the gastric mill burst period. A: the pyloric burst period increased after 50 and 100 μM ZD-7288 applications. One-way ANOVA followed by Tukey's HSD post hoc test, F(2,17) = 6.933, P = 0.006. B: the gastric mill burst period decreased after 50 and 100 μM ZD-7288 applications. One-way ANOVA followed by Tukey's HSD post hoc test, F(2,15) = 49.546, P < 0.0001. Error bars are represented as SD. The no. of trials (n) is indicated. *P < 0.05 and ****P < 0.00001.