Featured Publications
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 policiesPerceptionClosed-loop microstimulations of the orbitofrontal cortex during real-life gaze interaction enhance dynamic social attention
Fan S, Dal Monte O, Nair A, Fagan N, Chang S. Closed-loop microstimulations of the orbitofrontal cortex during real-life gaze interaction enhance dynamic social attention. Neuron 2024, 112: 2631-2644.e6. PMID: 38823391, PMCID: PMC11309918, DOI: 10.1016/j.neuron.2024.05.004.Peer-Reviewed Original ResearchPrimate prefrontal cortexPrefrontal cortexSocial attentionOrbitofrontal cortexDorsomedial prefrontal cortexAnterior cingulate cortexCingulate cortexDirect gazeGaze interactionCortexGaze dynamicsControl different aspectsDistance of fixationDifferent aspectsGaze eventsPartner eyeGazeMultiple regionsMicrostimulationGaze positionAttentionSpatial dimensionsLatencyNeurons
2023
The orbitofrontal cortex: A goal-directed cognitive map framework for social and non-social behaviors
Shi W, Meisner O, Blackmore S, Jadi M, Nandy A, Chang S. The orbitofrontal cortex: A goal-directed cognitive map framework for social and non-social behaviors. Neurobiology Of Learning And Memory 2023, 203: 107793. PMID: 37353191, PMCID: PMC10527225, DOI: 10.1016/j.nlm.2023.107793.Peer-Reviewed Original ResearchConceptsOrbitofrontal cortexOFC functionCognitive mapsOFC neuronsNon-social domainCore brain areasNon-social behaviorsReward-based behaviorsValues-based behaviorSocial behaviorSocial contextBrain areasBehavioral contextSocial functionComplex representationSingle subjectCortexBehaviorTremendous knowledgeIntegrated viewContextTask spaceMAP frameworkRepresentationWide array