Perforant PathwayDentate GyrusLong-Term PotentiationEntorhinal CortexHippocampusExcitatory Postsynaptic PotentialsSynapsesElectric StimulationMossy Fibers, HippocampalNeuronal PlasticitySynaptic TransmissionReceptors, N-Methyl-D-AspartateEvoked PotentialsCA3 Region, HippocampalRats, Sprague-DawleyNeural Inhibition2-Amino-5-phosphonovalerateStatus EpilepticusExcitatory Amino Acid AgonistsNeuronsPilocarpineExcitatory Amino Acid AntagonistsNeural Pathways6-Cyano-7-nitroquinoxaline-2,3-dioneKainic AcidKindling, NeurologicElectrophysiologyRats, WistarGABA AntagonistsDendritesAminobutyratesNaltrexoneAction PotentialsInterneuronsRats, Long-EvansDynorphinsMaze LearningReceptors, Metabotropic GlutamateSeizuresReceptors, AMPAPyramidal CellsS100 Calcium Binding Protein GMemoryNarcotic AntagonistsCalbindinsPatch-Clamp TechniquesReceptors, Opioid, delta