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Fig. 8. In preparations with relatively weak baseline firing, dopamine was capable
of activating a typical pyloric pattern, as was the case in the preparation
shown here. Recordings of the pyloric pattern in (A) control, (B) when
dopamine (10–4 mol l–1) was superfused over
the STG, and (C) in wash. Nerves: mvn, medial ventricular nerve
(recording action potentials of the VD and IC neurons); pdn, pyloric
dilator nerve (recording action potentials of the PD neurons); lvn,
lateral ventricular nerve (recording action potentials of the PD, LP and PY
neurons).