Neuronal PlasticityGlutamic AcidSynapsesReceptors, GlutamateSynaptic TransmissionExcitatory Postsynaptic PotentialsHippocampusGlutamatesAmino Acid Transport System X-AGReceptors, AMPALong-Term PotentiationGlutamate Plasma Membrane Transport ProteinsReceptors, N-Methyl-D-AspartateExcitatory Amino Acid AntagonistsExcitatory Amino Acid Transporter 2NeuronsPatch-Clamp TechniquesRats, Sprague-DawleyReceptors, Metabotropic GlutamateLong-Term Synaptic DepressionGlutamate DehydrogenaseDendritic SpinesElectric StimulationMemoryLearningDendritesReceptor, Metabotropic Glutamate 5CA1 Region, HippocampalSodium GlutamatePyramidal CellsPresynaptic TerminalsExcitatory Amino Acid AgonistsBrain-Derived Neurotrophic FactorGlutamate SynthaseModels, NeurologicalNerve Tissue ProteinsMaze LearningN-MethylaspartateCalcium-Calmodulin-Dependent Protein Kinase Type 2Mice, Inbred C57BL2-Amino-5-phosphonovalerateVesicular Glutamate Transport Protein 1Neural InhibitionElectrophysiologyBrainFearMice, KnockoutDentate GyrusAction PotentialsBehavior, AnimalOrgan Culture TechniquesAnimals, NewbornRats, WistarCells, CulturedCerebral CortexVesicular Glutamate Transport Protein 2Synaptic PotentialsCalciumTime FactorsVesicular Glutamate Transport ProteinsMolecular Sequence DataSignal TransductionAmygdalaalpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic AcidProtein BindingNeural PathwaysConditioning (Psychology)gamma-Aminobutyric AcidNeurotransmitter AgentsReceptors, Ionotropic GlutamateGlutamate DecarboxylaseConditioning, ClassicalNerve NetPurkinje Cells6-Cyano-7-nitroquinoxaline-2,3-dionePerforant PathwayAnalysis of VarianceExcitatory Amino Acid AgentsQuinoxalinesKainic AcidAmino Acid SequenceRats, Long-EvansReceptors, Kainic AcidReceptor, trkBBinding SitesAspartic AcidGABA AntagonistsSynaptophysinPost-Synaptic DensityMethoxyhydroxyphenylglycolAplysiaCritical Period (Psychology)Mice, TransgenicDominance, OcularInterneuronsCorpus StriatumExcitatory Amino Acid Transporter 1Excitatory Amino Acid Transporter 3Gene Expression RegulationAstrocytes