Excitatory Postsynaptic PotentialsHippocampusSynaptic TransmissionLong-Term PotentiationSynapsesNeuronal PlasticityElectric StimulationCA1 Region, HippocampalPerforant PathwayReceptors, N-Methyl-D-AspartateDendritesEvoked PotentialsExcitatory Amino Acid AntagonistsNeuronsRats, Sprague-DawleyElectrophysiologyRats, WistarPyramidal CellsNeural InhibitionAction Potentials2-Amino-5-phosphonovaleratePatch-Clamp TechniquesInterneuronsReceptors, AMPAGABA AntagonistsDentate GyrusAfferent Pathways6-Cyano-7-nitroquinoxaline-2,3-dionePresynaptic TerminalsInhibitory Postsynaptic PotentialsMembrane PotentialsGlutamic AcidMotor NeuronsCatsBicucullinegamma-Aminobutyric AcidRetinal Ganglion CellsSynaptic PotentialsQuinoxalinesLong-Term Synaptic DepressionExcitatory Amino Acid AgonistsModels, NeurologicalPicrotoxinAxonsN-MethylaspartateNeural PathwaysNeurons, AfferentAnimals, Inbred StrainsReceptors, PresynapticReceptors, Glutamatealpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic AcidTetrodotoxinIsoquinolinesNeurotransmitter AgentsReceptors, Metabotropic GlutamateSynaptic MembranesDendritic SpinesAnimals, NewbornGanglia, InvertebrateReceptors, GABA-BRetinaReceptors, NeurotransmitterBaclofenMiniature Postsynaptic PotentialsReceptors, GABA-ASpinal CordGABA-B Receptor AntagonistsThalamusOrgan Culture TechniquesAmacrine CellsNeocortexAstacoideaVestibulocochlear NerveMyenteric PlexusAplysiaTime FactorsGABA-A Receptor AntagonistsNerve NetCalciumVisual PathwaysMossy Fibers, HippocampalCerebral CortexStrychnineVisual CortexGanglia, AutonomicBrain StemNerve FibersGuinea PigsKynurenic AcidPurkinje CellsReaction TimePyramidal TractsMicroelectrodesReceptors, Kainic AcidGlycineGlutamatesSomatosensory CortexAxonal TransportReceptors, GABASerotonin