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 policiesPerceptionIs There a ‘Social’ Brain? Implementations and Algorithms
Lockwood PL, Apps MAJ, Chang SWC. Is There a ‘Social’ Brain? Implementations and Algorithms. Trends In Cognitive Sciences 2020, 24: 802-813. PMID: 32736965, PMCID: PMC7501252, DOI: 10.1016/j.tics.2020.06.011.Peer-Reviewed Original ResearchConceptsSocial behaviorNeural processesMotor facultiesInformation processingInfluential frameworkSocial specificitiesAlgorithmic levelGreater integrationPsychologyNeuroscienceBehaviorDifferent levelsImportant new insightsEmpirical approachMarrProcessingFundamental questionsBrainResearchMonkeysFrameworkHumansOxytocin under opioid antagonism leads to supralinear enhancement of social attention
Dal Monte O, Piva M, Anderson KM, Tringides M, Holmes AJ, Chang SWC. Oxytocin under opioid antagonism leads to supralinear enhancement of social attention. Proceedings Of The National Academy Of Sciences Of The United States Of America 2017, 114: 5247-5252. PMID: 28461466, PMCID: PMC5441805, DOI: 10.1073/pnas.1702725114.Peer-Reviewed Original ResearchConceptsSocial attentionMutual eye contactSocial cognitionReward receiptParticular social importanceEfficacy of oxytocinEye contactSocial dysfunctionOpioid antagonismSocial contextGaze interactionHuman brainEntire sessionOxytocinΚ-opioid receptor geneFacial regionOT geneAttentionCognitionSocial importanceStrong effectMonkeysOpioid systemSessionsContext
2016
Live interaction distinctively shapes social gaze dynamics in rhesus macaques
Dal Monte O, Piva M, Morris JA, Chang SW. Live interaction distinctively shapes social gaze dynamics in rhesus macaques. Journal Of Neurophysiology 2016, 116: 1626-1643. PMID: 27486105, PMCID: PMC5144716, DOI: 10.1152/jn.00442.2016.Peer-Reviewed Original ResearchConceptsMutual eye contactGaze dynamicsEye contactSocial cognitionProportion of fixationsInteractive social contextsPairs of monkeysFocal attentionSustained attentionLive interactionEye regionSeparable componentsFamiliar pairsMeaningful eventsSocial contextReal partnersDominant monkeysSame monkeysCognitionStatic imagesReal-time interactionAttentionMonkeys