Fig. 14. Inhibitory output from sint2 to an antagonistic motoneuron. (A) Single action potentials were driven in sint2 at a rate of one per second while recording from an antagonistic motoneuron in the opposite pedal ganglion in a quiescent whole animal preparation. Two traces are superimposed. The ipsp occurs with a delay of about 35 ms. (B) A driven burst in sint2 causes sustained hyperpolarization in the motoneuron due to summation of ipsps. These results are characteristic of 7 separate experiments.