Superior ColliculiEntorhinal CortexNeuronsVisual CortexVisual PathwaysNeocortexNeural PathwaysCartilage, ArticularCerebral CortexHorseradish PeroxidaseParvalbuminsNeural InhibitionPyramidal CellsAction Potentialsgamma-Aminobutyric AcidBicucullineCatsGABA AntagonistsSomatosensory CortexImmunohistochemistrySensory DeprivationAnimals, NewbornSynaptic TransmissionMicroscopy, Electron, ScanningElectric Stimulation6-Cyano-7-nitroquinoxaline-2,3-dioneMicroelectrodesSpinal CordExcitatory Amino Acid AntagonistsRats, Sprague-DawleyAfferent PathwaysExcitatory Postsynaptic PotentialsConjunctivaInterneuronsNerve NetAxonsAxonal TransportAutoradiographySynapsesElectrophysiologyMouth MucosaEpithelium, CornealPhotic StimulationGyrus CinguliHistocytochemistryAuditory CortexEpitheliumMacaca fascicularisMicroscopy, ElectronMacacaIn Situ HybridizationMicroscopy, ConfocalEpidermisDendritesRetinaBrain MappingNeuronal PlasticityMice, Inbred C57BLRats, WistarCell CountChondrocytesModels, NeurologicalEvoked PotentialsReceptors, N-Methyl-D-AspartateCell MovementImmunoenzyme TechniquesMacaca mulattaTime FactorsPrefrontal CortexBrainKnee JointAgingGene Expression Regulation, DevelopmentalCell DifferentiationPatch-Clamp TechniquesMembrane PotentialsNerve Tissue ProteinsCells, CulturedMicroscopy, FluorescenceRNA, MessengerRabbitsHippocampusMice, KnockoutGerm LayersSmear LayerRetinal Ganglion CellsChromatography, Thin LayerTomography, Optical CoherenceSurface PropertiesVibrissaeGeniculate BodiesOptic DiskPhotoreceptor Cells, VertebrateFreeze EtchingStaining and LabelingCell WallThalamusOptic NerveMicroscopy, Electron, TransmissionSkin