Receptors, GABAGABA AgonistsBaclofengamma-Aminobutyric AcidReceptors, GABA-BGABAergic NeuronsGABA AgentsGABA AntagonistsGABA-B Receptor AgonistsReceptors, GABA-AGABA ModulatorsGlutamate DecarboxylaseGABA Plasma Membrane Transport ProteinsInterneuronsNeural InhibitionInhibitory Postsynaptic PotentialsBicucullineGABA-A Receptor AntagonistsSynaptic TransmissionNeuronsMuscimolGABA-A Receptor AgonistsGABA Uptake InhibitorsVesicular Inhibitory Amino Acid Transport ProteinsPatch-Clamp TechniquesSynapsesPhosphinic AcidsNipecotic AcidsParvalbuminsPicrotoxinGABA-B Receptor AntagonistsHippocampusRats, Sprague-DawleyPyridazinesGlutamic AcidPresynaptic TerminalsExcitatory Postsynaptic PotentialsExcitatory Amino Acid Antagonists4-Aminobutyrate TransaminaseAction Potentials