Pyramidal CellsSynapsesHippocampusNeuronsDendritesCA1 Region, HippocampalAction PotentialsSynaptic TransmissionPatch-Clamp TechniquesExcitatory Postsynaptic PotentialsDendritic SpinesRats, Sprague-DawleyElectrophysiologygamma-Aminobutyric AcidElectric StimulationReceptors, N-Methyl-D-AspartateRats, WistarNeuronal PlasticityPyramidal TractsLong-Term PotentiationOrgan Culture TechniquesNeurons, AfferentNeural InhibitionMembrane PotentialsHyperpolarization-Activated Cyclic Nucleotide-Gated ChannelsCells, CulturedCyclic Nucleotide-Gated Cation ChannelsAnimals, NewbornGlutamic AcidReceptors, AMPANeocortexExcitatory Amino Acid AntagonistsPotassium ChannelsCalciumMotor NeuronsReceptors, GABA-AAxonsGABA AntagonistsNerve Tissue ProteinsModels, Neurological6-Cyano-7-nitroquinoxaline-2,3-dioneEvoked PotentialsSmall-Conductance Calcium-Activated Potassium ChannelsN-MethylaspartateImmunological SynapsesTetrodotoxinInterneurons2-Amino-5-phosphonovalerateKainic AcidCalcium ChannelsMice, Inbred C57BLCerebral CortexCalcium Channel BlockersTime FactorsReceptors, Glutamateomega-Conotoxin GVIAPresynaptic TerminalsPotassium Channel BlockersImmunohistochemistryReceptors, sigmaMice, KnockoutIon Channel GatingPotassiumCalcium SignalingFluorescent DyesProtein SubunitsCA3 Region, HippocampalMice, TransgenicBrainInhibitory Postsynaptic PotentialsPrefrontal CortexEgtazic AcidSomatosensory CortexGABAergic NeuronsNerve NetAnalysis of VarianceSignal TransductionDose-Response Relationship, DrugSynaptic PotentialsNeurotransmitter AgentsElectrical SynapsesExcitatory Amino Acid AgonistsEnzyme InhibitorsMossy Fibers, HippocampalSynaptic VesiclesLong-Term Synaptic DepressionDopaminergic NeuronsBiophysical ProcessesReceptors, Metabotropic GlutamateBicucullinealpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic AcidNeural PathwaysQuinoxalinesParvalbuminsGreen Fluorescent ProteinsAfferent PathwaysSpinal CordSynaptic MembranesVisual CortexSodium Channel Blockers