Excitatory Postsynaptic PotentialsHippocampusSynaptic TransmissionLong-Term PotentiationSynapsesElectric StimulationCA1 Region, HippocampalPerforant PathwayEvoked PotentialsDendritesReceptors, N-Methyl-D-AspartateNeuronal PlasticityExcitatory Amino Acid AntagonistsRats, Sprague-DawleyNeuronsElectrophysiologyRats, WistarPyramidal CellsAction PotentialsNeural InhibitionMembrane Potentials2-Amino-5-phosphonovaleratePatch-Clamp TechniquesInterneuronsGABA AntagonistsAfferent Pathways6-Cyano-7-nitroquinoxaline-2,3-dioneCatsMotor NeuronsInhibitory Postsynaptic PotentialsGlutamic AcidDentate GyrusPresynaptic TerminalsBicucullineRetinal Ganglion Cellsgamma-Aminobutyric AcidReceptors, AMPAQuinoxalinesTetrodotoxinSynaptic PotentialsAxonsNeurons, AfferentAnimals, Inbred StrainsPicrotoxinExcitatory Amino Acid AgonistsReceptors, PresynapticN-MethylaspartateIsoquinolinesNeural Pathwaysalpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic AcidModels, NeurologicalCalciumRetinaNeurotransmitter AgentsGanglia, InvertebrateReceptors, NeurotransmitterReceptors, GlutamateBaclofenAstacoideaSynaptic MembranesReceptors, GABA-BAmacrine CellsGABA-B Receptor AntagonistsSpinal CordMyenteric PlexusVestibulocochlear NerveReceptors, GABA-AGuinea PigsMiniature Postsynaptic PotentialsAnimals, NewbornThalamusGABA-A Receptor AntagonistsReceptors, Metabotropic GlutamateStrychnineNeocortexGanglia, AutonomicTime FactorsMicroelectrodesKynurenic AcidVisual PathwaysBrain StemAplysiaOrgan Culture TechniquesNerve FibersGlutamatesCerebral CortexGanglia, ParasympatheticMossy Fibers, HippocampalPyramidal TractsNerve NetGlycineReceptors, Kainic AcidFluorescent DyesReaction TimeSubmucous PlexusElectric ConductivityIontophoresisGanglia, SympatheticCycloleucineVisual Cortex