OrthopteraGanglia, InvertebrateNeuroanatomical Tract-Tracing TechniquesPalinuridaeAplysiaPyloric AntrumGangliaBiological ClocksCrustaceaAxonsInterneuronsPeriodicityNeural PathwaysFeeding BehaviorAnimals, Genetically ModifiedMotor NeuronsSynapsesCaenorhabditis elegans ProteinsNeuronsNerve NetSerotoninAction PotentialsCaenorhabditis elegansSynaptic TransmissionMembrane PotentialsElectrophysiologyCell MovementModels, BiologicalTime Factors