Receptors, Metabotropic GlutamateReceptor, Metabotropic Glutamate 5Bicyclo CompoundsExcitatory Amino Acid AgonistsReceptors, GlutamateExcitatory Amino Acid AntagonistsAllosteric RegulationGlutamic AcidQuisqualic AcidCycloleucinePyridinesGlycineResorcinolsGlutamatesOximesRats, Sprague-DawleyBenzoatesMethoxyhydroxyphenylglycolNeuronsHippocampusReceptors, AMPAReceptors, N-Methyl-D-AspartateThiazolesAminobutyratesSynaptic TransmissionExcitatory Postsynaptic PotentialsReceptors, Kainic Acidalpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic AcidDose-Response Relationship, DrugCHO CellsSynapsesCricetinaeN-MethylaspartateXanthenesBrainBehavior, AnimalPatch-Clamp TechniquesMotor ActivityExcitatory Amino Acid AgentsCyclopropanesRats, WistarQuinoxalinesGlutamate DehydrogenaseAmino Acids, DicarboxylicReceptors, Ionotropic GlutamateLong-Term Synaptic DepressionStructure-Activity Relationship6-Cyano-7-nitroquinoxaline-2,3-dioneAmino Acid Transport System X-AGKainic AcidElectrophysiologyCells, CulturedBicyclo Compounds, HeterocyclicCalciumElectric StimulationPresynaptic TerminalsNeuronal Plasticity2-Amino-5-phosphonovalerateNeurotoxins