FearConditioning, ClassicalConditioning (Psychology)Freezing Reaction, CatalepticExtinction, PsychologicalEmotionsFacial ExpressionElectroshockMemoryAvoidance LearningMagnetic Resonance ImagingBehavior, AnimalAmygdalaStartle ReactionNeural PathwaysRats, Long-EvansAnxietyAssociation LearningBrain MappingLimbic SystemPrefrontal CortexGalvanic Skin ResponseRats, Sprague-DawleyAnalysis of VarianceHippocampusCuesAcoustic StimulationBrainSeptal NucleiNeuronsImage Processing, Computer-AssistedFunctional LateralityPhotic StimulationMuscimolIbotenic AcidProto-Oncogene Proteins c-fosMicroinjectionsArousalKindling, NeurologicCorticotropin-Releasing HormoneExploratory BehaviorNeuronal PlasticityPhobic DisordersLearningMaze LearningLong-Term PotentiationLipoid Proteinosis of Urbach and WietheRewardStress, PsychologicalNerve NetGyrus CinguliFunctional NeuroimagingReaction TimePattern Recognition, VisualFaceRetention (Psychology)Conditioning, OperantSocial PerceptionSocial BehaviorAnti-Anxiety AgentsReceptors, Corticotropin-Releasing HormoneSynaptic TransmissionExpressed EmotionHappinessReceptors, N-Methyl-D-AspartateAffectRecognition (Psychology)Cerebral CortexCycloserineThalamusAnxiety DisordersHabituation, PsychophysiologicRestraint, PhysicalRats, WistarCorticosteroneInhibition (Psychology)Electric StimulationNeuropsychological TestsNeuronal Tract-TracersMental RecallExcitatory Amino Acid AntagonistsDominance, CerebralAngerSubliminal StimulationTime Factorsgamma-Aminobutyric AcidGABA AgonistsMice, Inbred C57BLOncogene Proteins v-fosMemory, Long-TermOlfactory PathwaysSubstance Withdrawal SyndromeEscape ReactionReinforcement (Psychology)Temporal LobeTasteEvoked PotentialsNucleus AccumbensSerotonin Plasma Membrane Transport ProteinsStress Disorders, Post-Traumatic