Featured Publications
Reward-Mediated, Model-Free Reinforcement-Learning Mechanisms in Pavlovian and Instrumental Tasks Are Related
Afshar N, Cinotti F, Martin D, Khamassi M, Calu DJ, Taylor JR, Groman SM. Reward-Mediated, Model-Free Reinforcement-Learning Mechanisms in Pavlovian and Instrumental Tasks Are Related. Journal Of Neuroscience 2022, 43: 458-471. PMID: 36216504, PMCID: PMC9864557, DOI: 10.1523/jneurosci.1113-22.2022.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsConditioning, OperantCuesLearningMaleMotivationRatsReinforcement, PsychologyRewardConceptsGoal-tracking behaviorReinforcement learning mechanismInstrumental learning processesSign-tracking behaviorModel-free reinforcementApproach taskInstrumental taskInstrumental behaviorBehavioral proceduresSubjects designLearning mechanismDecision Making TaskModel-based computationLearning processModel-free reinforcement learningPredictive cuesIncentive salienceAssociative learningIndividual differencesComputational mechanismsDecision-making processPavlovianModel-based algorithmValue representationAction valuesTargeted effects of ketamine on perceptual expectation during mediated learning in rats
Fleming LM, Jaynes FB, Thompson SL, Corlett PR, Taylor JR. Targeted effects of ketamine on perceptual expectation during mediated learning in rats. Psychopharmacology 2022, 239: 2395-2405. PMID: 35389087, PMCID: PMC9296571, DOI: 10.1007/s00213-022-06128-2.Peer-Reviewed Original ResearchConceptsPerceptual expectationsHallucination-like experiencesMemory representationsExpected cueDevaluation phasePerceptual experienceNeural correlatesAssociative learningLearning taskTask phasesExternal outcomesDirect learningLearningEffects of ketamineExpectationsRetrievalConclusionsThese resultsModerate dosePerceptCausal relationshipCuesExperienceRepresentationTaskRecent work
2008
Acute Hippocampal Brain-Derived Neurotrophic Factor Restores Motivational and Forced Swim Performance After Corticosterone
Gourley SL, Kiraly DD, Howell JL, Olausson P, Taylor JR. Acute Hippocampal Brain-Derived Neurotrophic Factor Restores Motivational and Forced Swim Performance After Corticosterone. Biological Psychiatry 2008, 64: 884-890. PMID: 18675955, PMCID: PMC2633780, DOI: 10.1016/j.biopsych.2008.06.016.Peer-Reviewed Original ResearchConceptsBrain-derived neurotrophic factorHippocampal brain-derived neurotrophic factorAntidepressant treatmentCORT exposureCORT secretionAppetitive instrumental behaviorChronic antidepressant treatmentDepressive-like stateNeurobiology of depressionHippocampal BDNF expressionAdult male miceAnhedonic-like behaviorResponse Element-Binding Protein PhosphorylationCAMP response element-binding protein (CREB) phosphorylationProgressive ratio taskElement-Binding Protein PhosphorylationADT efficacyCORT modelAntidepressant efficacyBDNF expressionHippocampal brainNeurotrophic factorSwim testCorticosterone exposureMale mice
2007
Regionally Specific Regulation of ERK MAP Kinase in a Model of Antidepressant-Sensitive Chronic Depression
Gourley SL, Wu FJ, Kiraly DD, Ploski JE, Kedves AT, Duman RS, Taylor JR. Regionally Specific Regulation of ERK MAP Kinase in a Model of Antidepressant-Sensitive Chronic Depression. Biological Psychiatry 2007, 63: 353-359. PMID: 17889834, PMCID: PMC2277331, DOI: 10.1016/j.biopsych.2007.07.016.Peer-Reviewed Original ResearchMeSH KeywordsAmitriptylineAnimalsAnti-Inflammatory AgentsAntidepressive Agents, TricyclicChronic DiseaseConditioning, OperantCorticosteroneCREB-Binding ProteinDentate GyrusDepressive Disorder, MajorDisease Models, AnimalEndoplasmic Reticulum Chaperone BiPExtracellular Signal-Regulated MAP KinasesFluoxetineHeat-Shock ProteinsHippocampusLocomotionMiceMice, Inbred C57BLMolecular ChaperonesMotivationSelective Serotonin Reuptake InhibitorsConceptsAntidepressant efficacyChronic corticosteroneDentate gyrusChronic depressionCA1/CA3Depression-like behaviorExtracellular signal-regulated kinase 1/2Response element-binding proteinSignal-regulated kinase 1/2Amitriptyline treatmentGlucocorticoid exposureADT treatmentNaive rodentsBehavioral despairLong-term consequencesTail suspensionElement-binding proteinCyclic adenosine monophosphateBiochemical measuresERK MAP kinasePrefrontal cortexHeat shock proteinsOperant conditioning taskCommon mediatorPERK1/2
2005
Persistent changes in motivation to self‐administer cocaine following modulation of cyclic AMP‐dependent protein kinase A (PKA) activity in the nucleus accumbens
Lynch W, Taylor J. Persistent changes in motivation to self‐administer cocaine following modulation of cyclic AMP‐dependent protein kinase A (PKA) activity in the nucleus accumbens. European Journal Of Neuroscience 2005, 22: 1214-1220. PMID: 16176364, DOI: 10.1111/j.1460-9568.2005.04305.x.Peer-Reviewed Original Research
1989
Limbic-striatal interactions in reward-related processes
Robbins T, Cador M, Taylor J, Everitt B. Limbic-striatal interactions in reward-related processes. Neuroscience & Biobehavioral Reviews 1989, 13: 155-162. PMID: 2682402, DOI: 10.1016/s0149-7634(89)80025-9.Peer-Reviewed Original ResearchConceptsVentral striatumDA depletionIndirect dopamine agonist d-amphetamineStriatal DA depletionReward-related stimuliAgonist d-amphetamineSelective stimulatory effectDA-dependent processesBasolateral nucleusD-amphetamineExcitotoxic lesionsReward-related processesSecond-order scheduleDorsal striatumStriatumAmygdala lesionsStimulatory effectLesionsSimilar discriminative propertiesDiscriminative propertiesOrder schedulePredictive associationsSexual reinforcementDorsalParallel findings