Pyramidal CellsHippocampusInterneuronsDendritesExcitatory Postsynaptic PotentialsSynapsesAction PotentialsNeocortexSynaptic TransmissionCA1 Region, HippocampalCA3 Region, HippocampalNeural InhibitionElectric Stimulationgamma-Aminobutyric AcidPatch-Clamp TechniquesRats, Sprague-DawleyNeuronsElectrophysiologyMossy Fibers, HippocampalRats, WistarPyramidal TractsGABA AntagonistsExcitatory Amino Acid AntagonistsEvoked PotentialsTheta RhythmReceptors, N-Methyl-D-AspartateMembrane PotentialsReceptors, GABA-AOrgan Culture Techniques2-Amino-5-phosphonovalerateParvalbuminsNeuronal PlasticityNerve NetCerebral CortexModels, Neurological6-Cyano-7-nitroquinoxaline-2,3-dioneLong-Term PotentiationBicucullineNeural PathwaysAxonsGlutamic AcidInhibitory Postsynaptic PotentialsExcitatory Amino Acid AgonistsDentate GyrusPrefrontal CortexReceptors, AMPAAnimals, NewbornDendritic SpinesGABA-A Receptor AntagonistsKainic AcidElectric FishSomatosensory CortexPresynaptic TerminalsPicrotoxinRats, Long-EvansQuinoxalinesEpilepsyTetrodotoxinN-MethylaspartateReceptors, Metabotropic GlutamateAfferent PathwaysOscillometryReceptors, GABA-BCalciumPerforant Pathwayalpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic AcidBaclofenPeriodicityS100 Calcium Binding Protein GReceptors, Kainic AcidTime FactorsGABA AgonistsEntorhinal CortexPapio ursinus4-AminopyridineReceptors, PresynapticBiological ClocksVisual CortexGerbillinaePhosphinic AcidsSeizuresCalbindinsElectric ConductivityDifferential ThresholdStatus EpilepticusCholinergic AgonistsOlfactory PathwaysPilocarpineGuinea PigsLong-Term Synaptic DepressionReceptors, GlutamateSynaptic PotentialsCalbindin 2ImmunohistochemistryBiophysical ProcessesPotassiumGABA-B Receptor AntagonistsGABA AgentsGlutamate DecarboxylaseRats, Inbred Strains