Percentage of trials in the three behavioural contexts with a reflex composition of retraction (re), levation (lev) and flexion (fl). Numbers in parentheses are the expected percentage in case of completely independent(i.e. uncoupled) action of each joint. The combined reflex action occurs with approx. 60% frequency in all behavioural contexts of the perturbed front leg and very closely matches the expected frequencies in independent joints.