Fig. 5.

Dwell time distributions for different temperatures. Dwell times longer than 1 s correspond mostly to pauses. The single-parameter backtracking fit of the form A*t^(−3/2) is shown by the (dotted) red line. The diffusive backtracking model can describe long pauses better than a double exponential fit (dashed purple line in 45°C plot) with time constants 1.2 and 6 seconds ⁶.