2023
Aberrant Hierarchical Prediction Errors Are Associated With Transition to Psychosis: A Computational Single-Trial Analysis of the Mismatch Negativity
Hauke D, Charlton C, Schmidt A, Griffiths J, Woods S, Ford J, Srihari V, Roth V, Diaconescu A, Mathalon D. Aberrant Hierarchical Prediction Errors Are Associated With Transition to Psychosis: A Computational Single-Trial Analysis of the Mismatch Negativity. Biological Psychiatry Cognitive Neuroscience And Neuroimaging 2023, 8: 1176-1185. PMID: 37536567, DOI: 10.1016/j.bpsc.2023.07.011.Peer-Reviewed Original ResearchConceptsPrecision-weighted prediction errorsHealthy control participantsCourse of schizophreniaCHR-P individualsLower-level precision-weighted prediction errorsControl participantsLow-level sensoryPredictive coding accountMismatch negativity paradigmHierarchical Gaussian FilterPrediction errorEarly psychosisSingle-trial analysisClinical high riskDouble deviantsMismatch negativityComputational mechanismsElectroencephalography amplitudeFuture psychosisComputational modelSchizophreniaPsychosisIndividualsParticipantsSensor space
2015
Equivalent mismatch negativity deficits across deviant types in early illness schizophrenia-spectrum patients
Hay RA, Roach BJ, Srihari VH, Woods SW, Ford JM, Mathalon DH. Equivalent mismatch negativity deficits across deviant types in early illness schizophrenia-spectrum patients. Biological Psychology 2015, 105: 130-137. PMID: 25603283, PMCID: PMC4336819, DOI: 10.1016/j.biopsycho.2015.01.004.Peer-Reviewed Original ResearchConceptsSchizophrenia spectrum patientsHealthy controlsEarly schizophrenia patientsMMN amplitude reductionDuration of illnessCourse of schizophreniaMismatch negativityDeviant typesMismatch negativity deficitsClinical symptomsDifferent deviant typesNeurophysiological abnormalitiesAuditory deviantsSchizophrenia patientsPatientsAuditory deviance processingIllnessNeurophysiological mechanismsAmplitude reductionSignificant interactionMMN responsesDeviance processingSymptomsAbnormalitiesSchizophrenia