Featured Publications
Unlocking the Reinforcement-Learning Circuits of the Orbitofrontal Cortex
Groman SM, Lee D, Taylor JR. Unlocking the Reinforcement-Learning Circuits of the Orbitofrontal Cortex. Behavioral Neuroscience 2021, 135: 120-128. PMID: 34060870, PMCID: PMC8201418, DOI: 10.1037/bne0000414.Peer-Reviewed Original ResearchConceptsOrbitofrontal cortexReinforcement-learning mechanismsDecision-making impairmentsDiverse clinical populationsDecision-making differsNeurocomputational approachOFC dysfunctionNeuroscience techniquesBiobehavioral disordersBehavioral paradigmsClinical populationsBiobehavioral mechanismsAddiction pathologyComputational differencesReinforcement-learning algorithms
2024
Lesions to the mediodorsal thalamus, but not orbitofrontal cortex, enhance volatility beliefs linked to paranoia
Suthaharan P, Thompson S, Rossi-Goldthorpe R, Rudebeck P, Walton M, Chakraborty S, Noonan M, Costa V, Murray E, Mathys C, Groman S, Mitchell A, Taylor J, Corlett P, Chang S. Lesions to the mediodorsal thalamus, but not orbitofrontal cortex, enhance volatility beliefs linked to paranoia. Cell Reports 2024, 43: 114355. PMID: 38870010, PMCID: PMC11231991, DOI: 10.1016/j.celrep.2024.114355.Peer-Reviewed Original ResearchOrbitofrontal cortexMediodorsal thalamusReward learning rateAssociated with paranoiaExcitotoxic lesionsBrain regionsUnoperated monkeysAction selectionAdaptive behaviorParanoiaBelief updatingMDmcMeaningful changeCortexThalamusBeliefsLearning rateRobust to variabilityCompare performanceRewardBehaviorBrainMonkeysAction policiesPerception
2008
A History of Corticosterone Exposure Regulates Fear Extinction and Cortical NR2B, GluR2/3, and BDNF
Gourley SL, Kedves AT, Olausson P, Taylor JR. A History of Corticosterone Exposure Regulates Fear Extinction and Cortical NR2B, GluR2/3, and BDNF. Neuropsychopharmacology 2008, 34: 707-716. PMID: 18719621, PMCID: PMC3679657, DOI: 10.1038/npp.2008.123.Peer-Reviewed Original ResearchConceptsPosttraumatic stress disorderConditioned fearFear memory acquisitionFear extinction trainingVentromedial prefrontal cortexContextual fear conditioningMedial orbitofrontal cortexPrior chronic exposureExtinction learningFear extinctionExtinction trainingFear conditioningFear statesImpairs extinctionStress disorderBehavioral flexibilityMemory acquisitionOrbitofrontal cortexPrefrontal cortexNeural systemsAMPA receptor subunitsCortical regionsActive learning processPrior stressGlucocorticoid exposure