MuscimolGABA AgonistsGABA-A Receptor AgonistsReceptors, GABA-ABicucullinegamma-Aminobutyric AcidGABA AntagonistsBaclofenMicroinjectionsReceptors, GABACerebellar NucleiFlunitrazepamPicrotoxinGABA-A Receptor AntagonistsRats, Sprague-DawleyOxazolesMolecular StructureReceptors, GABA-BNipecotic AcidsSulfur CompoundsDose-Response Relationship, DrugMedulla OblongataVolatile Organic CompoundsGABA AgentsIsoxazolesGABA-B Receptor AgonistsRats, Long-EvansPonsSecobarbitalPentobarbitalStructure-Activity RelationshipDiazepamBehavior, AnimalGABA ModulatorsChlormethiazoleAutoradiographyPlant ExtractsNeuronsRats, WistarBicyclo CompoundsPregnanediones