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. 2004 Jun 2;24(22):5140–5150. doi: 10.1523/JNEUROSCI.0482-04.2004

Figure 1.

Figure 1.

The pacemaker (AB and two PD) neurons and the LP neuron are connected by reciprocally inhibitory synapses. A, Circuit diagram shows the connectivity among the AB, PD, and LP neurons. The AB and PD neurons are connected with strong electrical connections. The AB–PD neurons and the LP neuron are connected by reciprocally inhibitory synapses. The LP to PD synapse is the sole chemical feedback synapse from the rest of the pyloric network to the pacemaker neurons. B, Intracellular voltage traces from the AB, PD, and LP neurons. The AB and PD neurons are coactive because of their strong electrical coupling. These two neurons oscillate in antiphase with the LP neuron.