Figure 1—figure supplement 1.

Figure 1—figure supplement 1. Short–long-diameter ratio probability plots.

(A) Cartoon illustrates labeled club ending (CE) contact areas in the lateral dendrite of the M-cell and the measurement of their short and long diameters. (B) Short–long-diameter ratios obtained from expanded (red circles) and non-expanded (black circles) CE contact areas are shown plotted against their standardized normal Z-scores calculated from sampled cumulative probabilities. Straight lines (Theoretical) show data expected from normally distributed short–long ratios derived from sample means and standard deviations. In both expanded and non-expanded cases, experimental distributions fit theoretical normal distributions well. It may also be observed that the variability of ratios is nearly identical for expanded and non-expanded data, indicating that the expansion process had no selective effects across the CE population.