GABA AgonistsMicroinjectionsGABA AntagonistsMuscimolSolitary NucleusMedulla OblongataBicucullinegamma-Aminobutyric AcidBaclofenGABA-A Receptor AgonistsReceptors, GABA-APicrotoxinRats, Sprague-DawleyGABA-B Receptor AgonistsIsoxazolesGABA AgentsBethanechol CompoundsGABA-A Receptor AntagonistsGABA ModulatorsAminobutyratesStrychnineNeuronsPyridazinesGABA Plasma Membrane Transport ProteinsNeural InhibitionReceptors, GABA-BGABA Uptake InhibitorsDopamine AgonistsDose-Response Relationship, DrugAction PotentialsNipecotic AcidsExcitatory Amino Acid AntagonistsGABA-B Receptor AntagonistsRats, WistarPhosphinic AcidsPatch-Clamp TechniquesSynaptic TransmissionPurinergic P1 Receptor AgonistsDopamine AntagonistsNarcotic AntagonistsNicotinic AgonistsMuscarinic AgonistsGlutamic AcidExcitatory Amino Acid Agonists4-Aminobutyrate TransaminaseCells, CulturedPiperidinesHormone AntagonistsInhibitory Postsynaptic PotentialsGlutamate DecarboxylaseDiazepamHistamine AgonistsAdrenergic alpha-2 Receptor AgonistsAdrenergic AgonistsHippocampusOocytesSerotonin 5-HT2 Receptor AgonistsSerotonin 5-HT1 Receptor AgonistsCalciumElectric StimulationReceptors, Opioid, muRadioligand AssayElectrophysiologyCholinergic AgonistsMembrane PotentialsPurinergic P2 Receptor AgonistsAdrenergic alpha-AgonistsMuscarinic AntagonistsAdrenergic beta-AgonistsDrug InteractionsNeurokinin-1 Receptor AntagonistsGlycineXenopus laevisAdenosine A1 Receptor AgonistsSignal TransductionCell LineSynapsesBehavior, AnimalBenzodiazepinesQuinoxalinesIsonicotinic AcidsBinding, CompetitiveLigandsReceptors, Opioid, kappaGuinea PigsTime FactorsPurinergic P1 Receptor AntagonistsNeurotransmitter AgentsMice, Inbred C57BLBenzazepinesReceptors, Dopamine D2Periaqueductal GrayReceptors, Opioid, deltaSerotoninReceptors, N-Methyl-D-AspartateReceptors, OpioidVigabatrinNicotinic AntagonistsEnkephalin, Ala(2)-MePhe(4)-Gly(5)-Histamine H2 Antagonists