Fig. 3. (A) Representation of leader and follower signals in the pair of omega-neurons of one preparation (playback levels 67 dB SPL; time delay 140 ms). (B,C) Results of similar experiments at four different playback levels of 57, 62, 67 and 72 dB SPL, when there is no time delay of both signals (B), and with a time delay of 140 ms (C); N=13. The value of v=0 is a standardized measure for equal representation of both signals, positive values refer to a dominance of the leader, negative values of the follower signal. Note that with a time delay of 140 ms for the follower, v is shifted to positive values, when the SPL of leader and follower signal is the same. With an increasing intensity advantage of the follower, v becomes more negative. The trading function is less steep at higher playback levels.