The pyloric network (Figure 1) is part of the stomatogastric
ganglion (STG) of crustaceans . The network is a central pattern
generator (CPG) that drives the muscles of the pylorus, which is
a food filtering organ within the gastric system of these
animals. The pyloric network is one of the most researched
neural circuits and many details of it are known, including
types and numbers of participating cells, connections between
these cells, transmitters, receptors and neuron-modulators used
by cells within the network . Consequently, this network is an
ideal candidate to develop detailed network simulations of
neural systems. Figure 1. A diagram of the pyloric network. The
diagram shows the participating neurons, their numbers and the
connections between these neurons. Simulations of the pyloric
network have been developed since the 1970s . However, these
simulations do not include many of the known details about the
pyloric network, and produce a behaviour that resembles at high
level the behaviour of the biol