Fig. 9
From: A neuromechanical model for Drosophila larval crawling based on physical measurements

Interaction between wES and wEn in controlling crawling speed. A Plots of segment displacement in varied combinations of proprioceptive sensory feedback wES (along the vertical axis) and intersegmental coupling wEn (along the horizontal axis). The plot enclosed in a black rectangle corresponds to the optimized condition. B A plot of speed as both proprioceptive sensory feedback wES and intersegmental coupling wEn were perturbed. A grey line and a shaded region show the average and the range of speed observed in the experiment with third-instar larvae, respectively