Linear mixed effect models were fit to μ and λ estimates using backward stepwise variable selection, with random intercept and slope terms due to the variance between individual axons.

The table shows the coefficient, the standard error and the p-value, with degrees of freedom estimated by Satterthwaite approximations. does change between control and TTX axons, while does not. Both and have a strong interaction between time and whether the axon has reached the TZ or not. Models were only fit to time points when there were at least two TTX and two control axons (-13 hours to +13 hours). Marginal R2 for is 0.11 (considering fixed effects only), conditional R2 is 0.48 (including random effects). Marginal R2 for is 0.27, conditional R2 is 0.66.