Excitatory Postsynaptic PotentialsHippocampusSynaptic TransmissionLong-Term PotentiationSynapsesElectric StimulationCA1 Region, HippocampalPerforant PathwayEvoked PotentialsReceptors, N-Methyl-D-AspartateNeuronal PlasticityExcitatory Amino Acid AntagonistsRats, Sprague-DawleyNeuronsElectrophysiologyDendritesRats, WistarNeural InhibitionPyramidal CellsAction Potentials2-Amino-5-phosphonovaleratePatch-Clamp TechniquesInterneuronsInhibitory Postsynaptic PotentialsGABA Antagonists6-Cyano-7-nitroquinoxaline-2,3-dioneMembrane PotentialsPresynaptic TerminalsMotor NeuronsGlutamic AcidDentate Gyrusgamma-Aminobutyric AcidBicucullineReceptors, AMPAAfferent PathwaysSynaptic PotentialsQuinoxalinesCatsReceptors, PresynapticExcitatory Amino Acid AgonistsPicrotoxinNeurons, AfferentSynaptic MembranesN-MethylaspartateTetrodotoxinNeural Pathwaysalpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic AcidReceptors, GABA-BReceptors, GlutamateModels, NeurologicalReceptors, NeurotransmitterBaclofenNeurotransmitter AgentsGABA-B Receptor AntagonistsMiniature Postsynaptic PotentialsGanglia, InvertebrateReceptors, GABA-AAstacoideaVestibulocochlear NerveSpinal CordAxonsMyenteric PlexusGABA-A Receptor AntagonistsThalamusReceptors, Metabotropic GlutamateAnimals, NewbornNeocortexStrychnineGanglia, AutonomicRetinal Ganglion CellsKynurenic AcidBrain StemGuinea PigsOrgan Culture TechniquesAplysiaTime FactorsMossy Fibers, HippocampalCalciumNerve FibersMicroelectrodesPyramidal TractsReceptors, Kainic AcidGlutamatesNerve NetGlycineCerebral CortexGanglia, ParasympatheticReaction TimeSubmucous PlexusGABA AgonistsReceptors, GABACycloleucinePurkinje CellsNeuromuscular JunctionLong-Term Synaptic DepressionIontophoresisSerotoninAnimals, Inbred StrainsHermissendaDecerebrate State