Fig. 6: Summary plots showing the difference in frequency of junction potentials between two recording sites recorded over increasing separation distances along the colon.

Using a conventional boxplot, Plot a displays the distribution of the difference in frequency of junction potentials recorded prior to CMC electrical activity (measured between the proximal and distal colon). In TTX, there is a greater difference in frequency of junction potentials overall electrode separation distances. Plot b shows the frequency of junction potentials recorded from the proximal colon (i.e. frequency coordination) with junction potentials recorded more aborally, during periods of CMC electrical activity. In TTX, there is again a large difference in frequency of electrical activities overall electrode separation distances. The boxplots in a and b are conventional, where the horizontal dark line designates the median, the box edges the first and third quartiles, and the whiskers extending up to 1.5 times the interquartile range. See Methodology for Wavelet Coherence and Frequency Coordination Analysis for precise analytical details and Supplementary Table 2 for t-tests comparing medians.