Fig. 10.
A, The biphasic effect of dopamine bath application (10−4m) on the pyloric pacemaker subnetwork isolated from all pyloric synaptic inputs and with intact descending inputs. All the data were collected from a single preparation. Dopamine was bath-applied and washed before and after photoinactivation to sequentially remove the first and then the second PD neuron (AB–2xPD, AB–PD, and isolated AB). The three panels in B show simultaneous recording from the AB (top traces) and PD (bottom traces) neurons in the AB–PD subnetwork, at the time data points marked in Aby corresponding letters.