Excitatory Postsynaptic PotentialsHippocampusSynaptic TransmissionLong-Term PotentiationSynapsesElectric StimulationCA1 Region, HippocampalPerforant PathwayReceptors, N-Methyl-D-AspartateEvoked PotentialsDendritesExcitatory Amino Acid AntagonistsNeuronal PlasticityRats, Sprague-DawleyNeuronsReceptors, AMPAElectrophysiologyRats, WistarPyramidal CellsNeural InhibitionAction Potentials2-Amino-5-phosphonovaleratePatch-Clamp Techniques6-Cyano-7-nitroquinoxaline-2,3-dioneInterneuronsGlutamic AcidMembrane PotentialsGABA AntagonistsAfferent PathwaysInhibitory Postsynaptic PotentialsMotor NeuronsN-MethylaspartateCatsDentate GyrusQuinoxalinesPresynaptic TerminalsRetinal Ganglion CellsBicucullinealpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic Acidgamma-Aminobutyric AcidExcitatory Amino Acid AgonistsSynaptic PotentialsAnimals, Inbred StrainsPicrotoxinAxonsReceptors, PresynapticNeurons, AfferentIsoquinolinesTetrodotoxinReceptors, NeurotransmitterNeural PathwaysReceptors, GlutamateSynaptic MembranesModels, NeurologicalRetinaReceptors, GABA-BBaclofenAmacrine CellsSpinal CordGABA-B Receptor AntagonistsVestibulocochlear NerveNeurotransmitter AgentsGanglia, InvertebrateAstacoideaReceptors, GABA-AMiniature Postsynaptic PotentialsMyenteric PlexusAnimals, NewbornReceptors, Metabotropic GlutamateGABA-A Receptor AntagonistsThalamusNeocortexReceptors, Kainic AcidKynurenic AcidStrychnineVisual PathwaysGanglia, AutonomicOrgan Culture TechniquesCalciumBrain StemGuinea PigsTime FactorsGlycineKainic AcidCerebral CortexGlutamatesNerve FibersMossy Fibers, HippocampalAplysiaMicroelectrodesPyramidal TractsNerve NetCycloleucineReaction TimeLong-Term Synaptic DepressionSubmucous PlexusVisual CortexAxonal TransportGanglia, ParasympatheticIontophoresis