DendritesSynapsesNeuronsPyramidal CellsPurkinje CellsAxonsShab Potassium ChannelsAutonomic Fibers, PreganglionicHippocampusInterneuronsHorseradish PeroxidasePresynaptic TerminalsAction PotentialsParvalbuminsRats, Sprague-Dawleygamma-Aminobutyric AcidAfferent PathwaysExcitatory Postsynaptic PotentialsCerebellumPatch-Clamp TechniquesImmunohistochemistryCatsCerebral CortexSynaptic TransmissionElectric StimulationNeural PathwaysNeurons, AfferentSpinal CordNeural InhibitionElectrophysiologyMotor NeuronsMicroscopy, ElectronRats, WistarCalciumDendritic SpinesNeocortexNeuronal PlasticityGuanine DeaminaseNerve Tissue ProteinsOlfactory BulbCerebellar CortexGreen Fluorescent ProteinsCells, CulturedAmacrine CellsSensory Receptor CellsMicroscopy, ConfocalAnimals, NewbornNeuropilTetrodotoxin