MuscimolGABA AgonistsGABA-A Receptor AgonistsAdministration, OralReceptors, GABA-ABicucullinegamma-Aminobutyric AcidGABA AntagonistsBaclofenMicroinjectionsRats, Sprague-DawleyReceptors, GABADose-Response Relationship, DrugFlunitrazepamCerebellar NucleiPicrotoxinDrug Administration ScheduleRats, WistarGABA-A Receptor AntagonistsTime FactorsInjections, IntravenousUnited States Food and Drug AdministrationInjections, IntraventricularDrug Administration RoutesBehavior, AnimalReceptors, GABA-BRats, Long-EvansNipecotic AcidsOxazolesMedulla OblongataRats, Inbred StrainsDiazepamAdministration, IntranasalPentobarbitalGABA AgentsDisease Models, AnimalDrug InteractionsGABA-B Receptor AgonistsPonsIsoxazolesInjectionsInjections, IntraperitonealSecobarbitalAutoradiographyNeuronsBrainMice, Inbred C57BLGABA ModulatorsInjections, SubcutaneousChlormethiazoleBlood PressureAmygdalaPregnanoloneAdministration, RectalRaphe NucleiLiverBiological AvailabilityInjections, SpinalConditioning (Psychology)PregnanedionesAnalysis of VarianceNucleus Accumbens