HippocampusLong-Term PotentiationExcitatory Postsynaptic PotentialsCA1 Region, HippocampalPyramidal CellsSynapsesPerforant PathwaySynaptic TransmissionElectric StimulationNeuronal PlasticityReceptors, N-Methyl-D-AspartatePortraits as TopicBiological Psychiatry2-Amino-5-phosphonovalerateExcitatory Amino Acid AntagonistsCA3 Region, HippocampalLong-Term Synaptic DepressionRats, Sprague-Dawley6-Cyano-7-nitroquinoxaline-2,3-dionePresynaptic TerminalsPatch-Clamp TechniquesReceptors, Metabotropic GlutamateEvoked PotentialsTheta RhythmNeural PathwaysCA2 Region, HippocampalReceptors, AMPAAction PotentialsPyramidal Tractsalpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic AcidGABA AntagonistsNeural InhibitionGlutamic AcidN-MethylaspartateElectrophysiologyDendritesEntorhinal CortexOrgan Culture TechniquesRats, WistarNeuronsMossy Fibers, HippocampalPicrotoxinExcitatory Amino Acid AgonistsMemoryMethoxyhydroxyphenylglycolInterneuronsQuinoxalinesDendritic SpinesRats, Long-EvansCalciumAnimals, NewbornReceptors, NeurotransmitterMaze LearningCalcium-Calmodulin-Dependent Protein Kinase Type 2Receptors, Kainic AcidMice, KnockoutMice, Inbred C57BL4-AminopyridineKainic AcidAfferent PathwaysBaclofenReceptors, GlutamateDose-Response Relationship, RadiationDizocilpine MaleateBicucullineModels, NeurologicalMembrane PotentialsValinegamma-Aminobutyric AcidGlutamatesConditioning, ClassicalSynaptic VesiclesLearningConditioning (Psychology)AxonsNerve FibersNeurotransmitter AgentsBiophysicsNerve NetMice, TransgenicAdenosineTime FactorsFearVero CellsMagnesiumEpilepsyReceptors, GABA-AGlycineBehavior, AnimalCalcium Channel BlockersRats, Inbred StrainsAnalysis of VarianceAgingDose-Response Relationship, DrugEnzyme InhibitorsSignal Transduction