Fig. 12. In the presence of Cancer borealis tachykinin-related peptide I (CabTRP I), there were no changes in the ongoing pyloric activity in preparations with the anterior inputs intact (A–E), nor was there any activation of the pattern in preparations with the stn blocked (not shown). (A,B) Phase plots, showing two cycles of the pyloric pattern in control saline (A) and when CabTRP I (10^–6 mol l^–1) was bath-applied to the STG (B). No differences are apparent. (C–E) There were no changes in cycle period (C), spike frequency within bursts (D) or burst duration (E) in any of the pyloric neurons when CabTRP I was bath applied to the STG. N=3. Error bars indicate standard deviations.