Fig. 12. Mutual inhibition between the antagonistic sint1 and sint2. Simultaneous recordings from Lsint2 (upper traces) and Rsint1 (lower traces) in a quiescent whole animal preparation. (A) Single action potentials were driven in Lsint2 at a rate of one per second while recording from Rsint1 at higher gain (7 superimposed traces). (B) The reciprocal ipsp in Lsint2 during stimulation of single action potentials in Rsint1 at 1 Hz (6 superimposed traces). Similar results were obtained in each of 12 separate whole animal experiments.