2024
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 policiesPerceptionBelief 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 effectsChildhoodBeliefsImagination, Agency, and Predictive Processing
Corlett P. Imagination, Agency, and Predictive Processing. 2024, 60-78. DOI: 10.1093/oso/9780198872221.003.0004.Peer-Reviewed Original ResearchPredictive processing theoryTheories of delusionsPredictive coding theorySensory inputDelusion formationSource monitoringProcess theoryDelusionsMediated learningHallucinationsConscious experienceImaginative processesReality perceptionPrediction processNeurocomputer architectureBeliefsPerceptionDysfunction
2023
Phenomenological and Cognitive Features Associated With Auditory Hallucinations in Clinical and Nonclinical Voice Hearers
Gold J, Corlett P, Erickson M, Waltz J, August S, Dutterer J, Bansal S. Phenomenological and Cognitive Features Associated With Auditory Hallucinations in Clinical and Nonclinical Voice Hearers. Schizophrenia Bulletin 2023, 49: 1591-1601. PMID: 37350507, PMCID: PMC10686332, DOI: 10.1093/schbul/sbad083.Peer-Reviewed Original ResearchConceptsAuditory verbal hallucinationsVoice hearersUnusual beliefsExperience of AVHNegative symptomsDSM-V diagnosisFeatures of schizophreniaMotivational deficitsCognitive featuresBroad batteryVerbal hallucinationsDelusional beliefsSZ/schizoaffective disorderCognitive AssessmentLess distressSensory featuresCognitive deficitsFirst-rank symptomsBroader phenotypeAuditory hallucinationsCognitive impairmentSchizoaffective disorderSchizophreniaBeliefsDeficitsAssumed shared belief about conspiracy theories in social networks protects paranoid individuals against distress
Suthaharan P, Corlett P. Assumed shared belief about conspiracy theories in social networks protects paranoid individuals against distress. Scientific Reports 2023, 13: 6084. PMID: 37055504, PMCID: PMC10100615, DOI: 10.1038/s41598-023-33305-w.Peer-Reviewed Original ResearchConceptsConspiratorial beliefsConspiracy theoriesLess emotional distressIndividual-level processesParanoid individualsClinical paranoiaParanoid beliefsPsychological studiesConspiracy beliefsEmotional distressPersecutory delusionsBehavioral predictorsSocial supportBelief formationSocial accountsSocial networksOrganizational factorsParanoiaBroader social networksBeliefsLarge social networksSocietal normsDistressTaskLevel processes
2018
Delusions and Prediction Error
Corlett P. Delusions and Prediction Error. 2018, 35-66. DOI: 10.1007/978-3-319-97202-2_2.Peer-Reviewed Original ResearchAberrant prediction errorsPrediction error responsesPrediction errorCognitive neuroscienceParsimonious accountNeural mechanismsError responsesProblem of beliefProminent theoriesPredictive codingNovel predictionsError accountsDelusionsBridging TheoryPhenomenological dataBeliefsAdaptive fitnessNeuroscienceSingle factorTheoryBrainMindErrorAccountPrediction
2012
Delusions
Corlett P. Delusions. 2012, 667-673. DOI: 10.1016/b978-0-12-375000-6.00126-9.Peer-Reviewed Original Research
2009
Why Do Delusions Persist?
Corlett PR, Krystal JH, Taylor JR, Fletcher PC. Why Do Delusions Persist? Frontiers In Human Neuroscience 2009, 3: 12. PMID: 19636384, PMCID: PMC2713737, DOI: 10.3389/neuro.09.012.2009.Peer-Reviewed Original Research
2007
Disrupted prediction-error signal in psychosis: evidence for an associative account of delusions
Corlett PR, Murray GK, Honey GD, Aitken MR, Shanks DR, Robbins TW, Bullmore ET, Dickinson A, Fletcher PC. Disrupted prediction-error signal in psychosis: evidence for an associative account of delusions. Brain 2007, 130: 2387-2400. PMID: 17690132, PMCID: PMC3838942, DOI: 10.1093/brain/awm173.Peer-Reviewed Original ResearchConceptsDelusion formationDelusional beliefsPrediction error processingPrediction-error signallingPrediction error signalsAttentional allocationAssociative accountMaladaptive beliefsError processingAssociative learningNeurobiological theoriesBrain responsesCortex responsesIndividual's propensityBelief formationDelusionsBeliefsPrediction errorExtent of disruptionProcessingFMRILearningPsychosisExpectancyIndividuals