PersonsMMPIAnxietyOrthopteraGanglia, InvertebrateNeuroanatomical Tract-Tracing TechniquesPalinuridaeAplysiaPyloric AntrumGangliaBiological ClocksCrustaceaAxonsInterneuronsPeriodicityGene Expression ProfilingNeural PathwaysFeeding BehaviorAnimals, Genetically ModifiedMotor NeuronsSynapsesNeuronsCaenorhabditis elegans ProteinsTime FactorsNerve NetOligonucleotide Array Sequence AnalysisAction PotentialsSerotoninModels, BiologicalCaenorhabditis elegansSynaptic Transmission