Fig. 6. Color rasters of two moths (A and B) showing dynamics of spike trains as a function of intensity and post-stimulus time. Stimulus intensities were changed in 1 dB steps. In (A) the moth was stimulated 10 times at each intensity level, whereas in (B) only two presentations were possible. Spike amplitudes are represented in color, and the color bar scale is in mV. The moth in B was chosen to illustrate the maximum response duration at high stimulus intensities. In this moth there was a clear difference in spike amplitude between A₁ and A₂ (inset) and both cells contributed to the long response train.