Fig. 4. Inhibitory effect of allatostatin III type A (AST-3) on the isolated cardiac ganglion (CG). (A) Intra-axonal recording from a motor neuron during control (top trace), in the presence of 10^–6 mol l^–1 AST-3 (middle trace) and during wash (bottom trace). (B) Pooled data bar graphs showing statistically significant changes on the CG bursting activity with AST-3 (Student's t-test; N=6; ^*P<0.05; ^**P<0.01).