Fig. 6. Bilateral pulse numbers and steering. (A) Patterns with different numbers of sound pulses were presented from the left and right side. The numbers of pulses presented from the first and second speaker varied from 6:0 to 3:3 to 0:6. Lateral deviation depended on the number of sound pulses presented from each side. When the same number of pulses was presented from both sides, the animals almost walked straight ahead. (B) Lateral deviation in dependence of ratio of sound pulses presented from the left and right speaker. The lateral deviation depended on the pulse numbers perceived at each side. (C) Overall path length walked during the trials. Translation velocity increased with the amount of steering.