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 questionsBrainResearchMonkeysFrameworkHumans