2024
Differing pattern of MMN responses in clinical and non-clinical voice hearers challenge predictive coding accounts of psychosis
Erickson M, Bansal S, Li C, Waltz J, Corlett P, Gold J. Differing pattern of MMN responses in clinical and non-clinical voice hearers challenge predictive coding accounts of psychosis. Biological Psychiatry Global Open Science 2024, 100394. DOI: 10.1016/j.bpsgos.2024.100394.Peer-Reviewed Original ResearchHealthy comparison subjectsReduced mismatch negativityPrediction error signalsPositive symptomsMismatch negativityDeviant typesPredictive coding accountPresence of hallucinationsMismatch negativity paradigmAuditory memory tracesComparison subjectsCoding accountMemory tracesPsychiatric illnessMMN responseVoice hearersRepetitive positioningError signalDuration conditionsHallucinationsHigher-levelDMMNDifferent patternsSymptomsPSZ
2007
From prediction error to psychosis: ketamine as a pharmacological model of delusions
Corlett PR, Honey GD, Fletcher PC. From prediction error to psychosis: ketamine as a pharmacological model of delusions. Journal Of Psychopharmacology 2007, 21: 238-252. PMID: 17591652, DOI: 10.1177/0269881107077716.Peer-Reviewed Original ResearchConceptsDelusion formationAssociative learning processesPrediction error signalsDevelopment of delusionsFormation of delusionsPre-psychotic periodAttentional disruptionAttentional disturbancesNeuropsychiatric modelsNeurobiological systemsPrediction errorExperience resultsLearning processIrrelevant detailsDelusionsError signalDrug ketaminePsychosisNumerous associationsPsychotic statesPerceptExpectationsPharmacological modelStimuliSymptom evolution