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 policiesPerceptionUnderstanding Cognitive Behavioral Therapy for Psychosis Through the Predictive Coding Framework
Sheffield J, Brinen A, Feola B, Heckers S, Corlett P. Understanding Cognitive Behavioral Therapy for Psychosis Through the Predictive Coding Framework. Biological Psychiatry Global Open Science 2024, 4: 100333. PMID: 38952435, PMCID: PMC11215207, DOI: 10.1016/j.bpsgos.2024.100333.Peer-Reviewed Original ResearchCognitive behavioral therapyPersecutory delusionsBehavioral therapyMaintenance of delusionsSymptoms of psychosisAssociative learning modelsCognitive-behavioral interventionsPrediction error signalsLevels of information processingPredictive coding frameworkHierarchical predictive codingPredictive codingPsychotic disordersPsychological treatmentCognitive neurosciencePsychological processesCBTpPsychosisDelusionsBelief updatingInformation processingAlternative beliefsNeuroscienceProcess theoryComputational neuroscienceBelief Updating, Childhood Maltreatment, and Paranoia in Schizophrenia-Spectrum Disorders
Sloan A, Kittleson A, Torregrossa L, Feola B, Rossi-Goldthorpe R, Corlett P, Sheffield J. Belief Updating, Childhood Maltreatment, and Paranoia in Schizophrenia-Spectrum Disorders. Schizophrenia Bulletin 2024, sbae057. PMID: 38701234, DOI: 10.1093/schbul/sbae057.Peer-Reviewed Original ResearchSchizophrenia spectrum disordersExposure to childhood maltreatmentPositive and Negative Syndrome ScaleChildhood Trauma QuestionnaireChildhood maltreatmentHierarchical Gaussian FilterBelief updatingProbabilistic reversal learningNegative Syndrome ScaleSyndrome ScaleNonpsychiatric controlsReversal learningSchizophrenia spectrumCumulative maltreatmentTrauma QuestionnaireDeprivation exposureGreen et al.ParanoiaConferring riskMaltreatmentPrior expectationsDisordersIndirect effectsChildhoodBeliefsLongitudinal Associations Between Belief Updating and Delusions in Individuals Recovering From an Acute Psychotic Episode
Sheffield J, Hall L, Vandekar S, Liu J, Woodward N, Heckers S, Corlett P. Longitudinal Associations Between Belief Updating and Delusions in Individuals Recovering From an Acute Psychotic Episode. Biological Psychiatry 2024, 95: s66-s67. DOI: 10.1016/j.biopsych.2024.02.164.Peer-Reviewed Original Research