2024
Belief 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, 51: 646-657. PMID: 38701234, PMCID: PMC12061658, 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 effectsChildhoodBeliefsMoral learning and positive schizotypy: Social cognitive mechanisms in psychosis- proneness
Zhao W, Cannon T. Moral learning and positive schizotypy: Social cognitive mechanisms in psychosis- proneness. Schizophrenia Research 2024, 266: 156-164. PMID: 38402656, DOI: 10.1016/j.schres.2024.02.023.Peer-Reviewed Original ResearchSocial-cognitive mechanismsPositive schizotypyCognitive mechanismsInvestment gamePsychosis-prone individualsPsychosis-pronenessMoral impressionsDelusional thoughtsLevel of financial incentivesAmazon Mechanical TurkMoral cognitionSchizotypyOnline samplePrior expectationsBenevolent individualsMoral characterConspiratorial beliefsTrust behaviorMechanical TurkBinary choiceInference tasksConspiratorial thinkingFinancial incentivesMultiple regressionParticipants
2023
A novel computational approach to pain perception modelling within a Bayesian framework using quantitative sensory testing
Drusko A, Baumeister D, McPhee Christensen M, Kold S, Fisher V, Treede R, Powers A, Graven-Nielsen T, Tesarz J. A novel computational approach to pain perception modelling within a Bayesian framework using quantitative sensory testing. Scientific Reports 2023, 13: 3196. PMID: 36823292, PMCID: PMC9950064, DOI: 10.1038/s41598-023-29758-8.Peer-Reviewed Original ResearchConceptsHierarchical Gaussian FilterPrior expectationsRelevant individual differencesPain perceptionLearning-based interventionsTesting paradigmCognitive processesSensory evidenceIndividual differencesPsychophysical paradigmInferential processesVisual cuesElectrical cutaneous stimulusPrior weightingPerceptionPain stimuliPrior beliefsIndividual levelNociceptive inputBeliefsGreater relianceStimuliStrong weightingAcute pain stimuliParadigm
2022
Conditioned Hallucinations and Prior Overweighting Are State-Sensitive Markers of Hallucination Susceptibility
Kafadar E, Fisher VL, Quagan B, Hammer A, Jaeger H, Mourgues C, Thomas R, Chen L, Imtiaz A, Sibarium E, Negreira AM, Sarisik E, Polisetty V, Benrimoh D, Sheldon AD, Lim C, Mathys C, Powers AR. Conditioned Hallucinations and Prior Overweighting Are State-Sensitive Markers of Hallucination Susceptibility. Biological Psychiatry 2022, 92: 772-780. PMID: 35843743, PMCID: PMC10575690, DOI: 10.1016/j.biopsych.2022.05.007.Peer-Reviewed Original ResearchConceptsCH rateIncoming sensory evidenceSensory evidencePerceptual statesTask performanceComputational psychiatrySubset of participantsPrior expectationsHallucination severityBehavioral dataSymptom severityPast experienceStable measureHallucinationsPsychotic symptomsHallucination frequencyTaskSymptom expressionBayesian modelState markerHallucinatorsNonhallucinatorsOverweightingPerceptionSymptom riskRelating Glutamate, Conditioned, and Clinical Hallucinations via 1H-MR Spectroscopy
Leptourgos P, Bansal S, Dutterer J, Culbreth A, Powers A, Suthaharan P, Kenney J, Erickson M, Waltz J, Wijtenburg SA, Gaston F, Rowland LM, Gold J, Corlett P. Relating Glutamate, Conditioned, and Clinical Hallucinations via 1H-MR Spectroscopy. Schizophrenia Bulletin 2022, 48: 912-920. PMID: 35199836, PMCID: PMC9212089, DOI: 10.1093/schbul/sbac006.Peer-Reviewed Original ResearchConceptsGlutamate levelsAnterior insulaPrior beliefsCognitive modelPathophysiological theoriesAuditory cortexClinical hallucinationsAnterior cingulateComputational psychiatryNew treatmentsDorsolateral prefrontalVisual cuesPrior expectationsSame participantsHallucinationsInsulaNegative relationshipCurrent experienceMagnetic resonance spectroscopyBeliefsComputational modelingTone
2018
Associative Prediction of Visual Shape in the Hippocampus
Kok P, Turk-Browne NB. Associative Prediction of Visual Shape in the Hippocampus. Journal Of Neuroscience 2018, 38: 6888-6899. PMID: 29986875, PMCID: PMC6070666, DOI: 10.1523/jneurosci.0163-18.2018.Peer-Reviewed Original ResearchConceptsAssociative predictionAuditory cuesVisual shapesVisual cortexSensory systemsFemale human participantsHigh-resolution fMRI signalsAspects of cognitionCross-modal associationsHuman brainProcess of inferenceHippocampal predictionsPerceptual processingHuman participantsPrior expectationsVisual informationMemory systemNeural activitySensory cortexFMRI signalsCuesMemoryCorresponding objectsPerceptionCortex
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