Figure 6.

The maximum amplitudes of compound PSPs in FETi were always similar regardless of phase or l/|v|. A, Regressions fitted to the maximum FETi PSP amplitudes in solitarious (black) and gregarious locusts over a range of different values of l/|v|. B, Recordings of DCMD and FETi from a solitarious (left column) and gregarious (right column) locust together with model waveforms produced by convolving the DCMD spike train with a single PSP template. C, Comparison of the ratios of the measured maximum compound FETi PSP amplitude to the measured single PSP amplitude with the equivalent ratio produced by dividing the maximum compound PSP amplitude predicated by the model with the unitary PSP template used to generate it. D, Median and 50% data ranges for the data in C by phase and for each value of l/|v|. E, Means and SDs of maximum compound PSP amplitudes compared with expected amplitudes obtained from the model.