Neuronal PlasticityLong-Term PotentiationHippocampusSynapsesLong-Term Synaptic DepressionSynaptic TransmissionMaze LearningExcitatory Postsynaptic PotentialsMemoryReceptors, N-Methyl-D-AspartateCA1 Region, HippocampalLearningElectric StimulationFearReceptors, AMPADentate GyrusBrain-Derived Neurotrophic FactorSpatial Behavior2-Amino-5-phosphonovalerateNeuronsBehavior, AnimalMice, Inbred C57BLConditioning, ClassicalMice, KnockoutRats, Sprague-DawleyExcitatory Amino Acid AntagonistsPatch-Clamp TechniquesReceptors, Metabotropic GlutamateElectrophysiologyMice, TransgenicAmyloid beta-PeptidesDendritic SpinesRats, WistarAnalysis of VarianceDendritesModels, NeurologicalPyramidal CellsCalcium-Calmodulin-Dependent Protein Kinase Type 2Nerve Tissue ProteinsPresynaptic TerminalsNeural InhibitionAction PotentialsOrgan Culture TechniquesSynaptic PotentialsAmygdalaConditioning (Psychology)Neural PathwaysNerve NetBrainAnimals, NewbornPerforant PathwayReceptor, trkBGlutamic AcidTime FactorsDominance, OcularCritical Period (Psychology)N-MethylaspartateAplysiaSignal TransductionMemory, Long-TermSynaptophysinCerebral CortexReceptors, GlutamatePurkinje CellsRats, Long-EvansPost-Synaptic DensityCalciumCerebellumCells, CulturedGuanylate KinaseVisual CortexBiophysicsExcitatory Amino Acid AgonistsTheta RhythmMemory DisordersCannabinoid Receptor ModulatorsInterneuronsSynapsinsGABA AntagonistsGAP-43 ProteinNeurotransmitter AgentsCalcium SignalingExcitatory Amino Acid AgentsCorpus StriatumMossy Fibers, HippocampalInhibitory Postsynaptic PotentialsEndocannabinoidsGene Expression RegulationNeocortexFragile X Mental Retardation ProteinGreen Fluorescent ProteinsCA3 Region, HippocampalMethoxyhydroxyphenylglycolDisease Models, AnimalSomatosensory CortexVibrissae3',5'-Cyclic-GMP PhosphodiesterasesProtein TransportThalamusgamma-Aminobutyric Acid