Fig. 2. Bilateral steering movements of the left front leg. (A) A third of animals exhibited strong steering movements of the front leg towards both ipsilateral and contralateral acoustic stimulation. In less than 10% of cases the step rhythm was disrupted during a turn (asterisk). (B) Two-dimensional projections of up–down and left–right movement components of the left front leg. The AEP (asterisk) was shifted towards the respective active speaker during both contralateral (right) and ipsilateral (left) sound presentation. This allowed the animal to pull towards the active speaker during the following stance phase for both ipsilateral and contralateral steering.