SynapsesNeuropilSynaptophysinDendritesHippocampusNeuronal PlasticityNeuronsNerve Tissue ProteinsImmunological SynapsesSynaptic TransmissionBone DensityExcitatory Postsynaptic PotentialsPost and Core TechniquePresynaptic TerminalsElectrical SynapsesDendritic SpinesSynaptic VesiclesReceptors, AMPALong-Term PotentiationPatch-Clamp TechniquesElectric StimulationPopulation DensityReceptors, N-Methyl-D-AspartateNeural InhibitionPost-Synaptic DensityNeuromuscular JunctionSynaptic MembranesNeurotransmitter AgentsCentrifugation, Density GradientGlutamic AcidRats, Sprague-DawleyAxonsgamma-Aminobutyric AcidAnimals, NewbornCells, CulturedTime FactorsInterneuronsLong-Term Synaptic DepressionPyramidal CellsExcitatory Amino Acid AntagonistsPurkinje CellsAction PotentialsMossy Fibers, HippocampalMicroscopy, ElectronModels, NeurologicalReceptors, GlutamateElectrophysiologyGuanylate KinaseCerebellumVesicular Glutamate Transport Protein 1Motor NeuronsSynaptic PotentialsInhibitory Postsynaptic PotentialsMice, Inbred C57BLNerve FibersCalciumImmunohistochemistryRats, WistarMembrane ProteinsSynapsinsNeural PathwaysMicroscopy, Electron, TransmissionCell CountMice, KnockoutCell Adhesion Molecules, NeuronalReceptors, Metabotropic GlutamateOrgan Culture TechniquesAplysiaCA1 Region, HippocampalMicroscopy, ConfocalGreen Fluorescent ProteinsPyridinium CompoundsLipoproteins, LDLBrainGABA AntagonistsEvoked PotentialsNerve NetMice, TransgenicCerebral CortexMicroscopy, ImmunoelectronReceptors, PresynapticAnalysis of VarianceSignal TransductionMembrane PotentialsNeurons, AfferentReceptors, GABA-AExcitatory Amino Acid AgentsRetinaExocytosisRetinal Bipolar CellsCerebellar CortexVesicular Glutamate Transport Protein 2NeocortexVesicular Inhibitory Amino Acid Transport ProteinsReceptors, CholinergicCell Communication6-Cyano-7-nitroquinoxaline-2,3-dioneExcitatory Amino Acid Agonists2-Amino-5-phosphonovalerateBrain Stem