Signal frequency of fast phase and slow phase after injection of truncated dromyosuppressin (DMS) analogs. Fast and slow phases were recorded immediately after injection (time 0) and continuously for 10 minutes (x-axis, minutes after injection). Frequency (y-axis) is reported as mean values ± SE (percentage variation following injection; squares, fast phase; triangles, slow phase). DMS and each analog (1 μM) were tested individually, using an animal only once, in 10 flies. Filled symbols indicate significance (P < 0.05; Wilcoxon Test).