Excitatory Postsynaptic PotentialsSynaptic TransmissionHippocampusLong-Term PotentiationSynapsesElectric StimulationCA1 Region, HippocampalPerforant PathwayDendritesEvoked PotentialsReceptors, N-Methyl-D-AspartateExcitatory Amino Acid AntagonistsNeuronal PlasticityNeuronsRats, Sprague-DawleyElectrophysiologyNeural InhibitionRats, WistarPyramidal CellsAction PotentialsInterneurons2-Amino-5-phosphonovaleratePatch-Clamp TechniquesGABA AntagonistsInhibitory Postsynaptic PotentialsAfferent Pathways6-Cyano-7-nitroquinoxaline-2,3-dioneMembrane PotentialsGlutamic AcidCatsMotor Neuronsgamma-Aminobutyric AcidBicucullinePresynaptic TerminalsDentate GyrusReceptors, AMPARetinal Ganglion CellsNeural PathwaysQuinoxalinesExcitatory Amino Acid AgonistsSynaptic PotentialsModels, NeurologicalNeurons, AfferentAxonsPicrotoxinSpineTetrodotoxinN-Methylaspartatealpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic AcidReceptors, PresynapticReceptors, GlutamateAnimals, Inbred StrainsThalamusBaclofenReceptors, GABA-BNeurotransmitter AgentsGanglia, InvertebrateReceptors, GABA-ARetinaAnimals, NewbornIsoquinolinesNeocortexGABA-A Receptor AntagonistsSpinal CordReceptors, NeurotransmitterNerve NetStrychnineReceptors, Metabotropic GlutamateSynaptic MembranesExcitatory Amino AcidsVisual PathwaysAstacoideaGABA-B Receptor AntagonistsVestibulocochlear NerveAmacrine CellsBrain StemMiniature Postsynaptic PotentialsMyenteric PlexusTime FactorsOrgan Culture TechniquesIontophoresisGlutamatesVisual CortexKynurenic AcidCerebral CortexGlycineNerve FibersReaction TimeGuinea PigsPurkinje CellsSomatosensory CortexGanglia, AutonomicGABA AgonistsCalciumReceptors, GABAMicroelectrodesCycloleucineMossy Fibers, HippocampalPyramidal TractsAplysia