Fig. 4: Median frequency of EJPs during propulsion elicited by fluid distension and rod distension.

a In response to fluid distension, boxplots show the distribution of the median frequency (during activity) as measured by the CWT, for the range of distances considered. b In response to rod distension, boxplots show the distribution of the median frequency (during activity) as measured by the CWT. In atropine, the coordinated IJPs occur at lower frequencies to the EJPs in nicardipine or normal Krebs solution.