Fig. 8. Mean wing kinematics during object orientation behaviour plotted as a function of the simulated damping coefficient. (A) Stroke frequency, (B) sum of left and right stroke amplitude, (C) absolute difference between left and right wing stroke amplitude. Linear regressions fit to measured data is shown in red while the shaded area indicates the upper limits of the visual system that allows visual control of the stripe (Eqn 5; 50 and 100% threshold). Dotted line in C indicates where the regression line crosses with the x-axis. Values are means ± s.e.m., N=24 flies.