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 policiesPerceptionBtbd3 expression regulates compulsive-like and exploratory behaviors in mice
Thompson SL, Welch AC, Ho EV, Bessa JM, Portugal-Nunes C, Morais M, Young JW, Knowles JA, Dulawa SC. Btbd3 expression regulates compulsive-like and exploratory behaviors in mice. Translational Psychiatry 2019, 9: 222. PMID: 31501410, PMCID: PMC6733800, DOI: 10.1038/s41398-019-0558-7.Peer-Reviewed Original ResearchConceptsObsessive-compulsive disorderKnockout miceCompulsive-like behaviorLimbic cortico-striatoExploratory behaviorThalamo-cortical circuitsMarble-burying testPrimary sensory cortexNeural circuit formationDendritic morphologyImpaired goal-directed behaviorAnterior cingulate cortexGoal-directed behaviorChronic treatmentSpine densityCortico-striatoMediodorsal thalamusDendritic pruningSensory cortexNeonatal developmentAnterior cingulateCingulate cortexCircuit formationPotential risk genesMice