RewardChoice BehaviorMotivationConditioning, OperantAnticipation, PsychologicalNucleus AccumbensCuesBehavior, AnimalReinforcement (Psychology)Self StimulationPunishmentDopamineImpulsive BehaviorDecision MakingLearningReaction TimeProbability LearningBrain MappingMagnetic Resonance ImagingBasal GangliaPrefrontal CortexRats, Long-EvansConditioning (Psychology)Ventral Tegmental AreaFeedback, PsychologicalPsychomotor PerformanceBrainConditioning, ClassicalCocaineGamblingAssociation LearningReinforcement ScheduleDriveFood PreferencesBehavior, AddictiveCorpus StriatumAnalysis of VarianceGames, ExperimentalNeuronsAnhedoniaAppetitive BehaviorEconomics, BehavioralLimbic SystemPhotic StimulationFeeding BehaviorDopamine Uptake InhibitorsSelf AdministrationNeural PathwaysMacaca mulattaGyrus CinguliPleasureSucroseCaudate NucleusSubstance Withdrawal SyndromeAmygdalaTime FactorsDiscrimination LearningMesencephalonGoalsFrontal LobeModels, PsychologicalImage Processing, Computer-AssistedFoodFlupenthixolPlant NectarTask Performance and AnalysisFunctional NeuroimagingDopamine AntagonistsNicotineCocaine-Related DisordersDiscrimination (Psychology)NeostriatumReceptors, Dopamine D2Rats, Sprague-DawleyMotor ActivityBehaviorDopaminergic NeuronsExtinction, PsychologicalCompulsive BehaviorSweetening AgentsAmphetamineReversal LearningMedial Forebrain BundleSaccharinUncertaintyNerve NetBeesTaste