Figure 6. Spike filtering correlates with axonal branchpoint geometrical ratio (GR).

A: GR values of ‘similar’ and ‘different’ response branchpoints; t-test two-sided. B: Percentage of propagating spikes as a function of GR for each spike train frequency. Lines represent linear fit to the data. C: Slope of the regression line as a function of action potential frequency. D: Pearson correlation coefficient (R) between the percentage of passing spikes and GR, as a function of action potential frequency. E: p-value of the linear regression fitting as a function of the action potential frequency. Dashed lines indicate p-values of 0.05 and 0.01.