2025
Emergence and dynamics of delusions and hallucinations across stages in early psychosis
Mourgues-Codern C, Benrimoh D, Gandhi J, Farina E, Vin R, Zamorano T, Parekh D, Malla A, Joober R, Lepage M, Iyer S, Addington J, Bearden C, Cadenhead K, Cornblatt B, Keshavan M, Stone W, Mathalon D, Perkins D, Walker E, Cannon T, Woods S, Shah J, Powers A. Emergence and dynamics of delusions and hallucinations across stages in early psychosis. Biological Psychiatry 2025 PMID: 40020853, DOI: 10.1016/j.biopsych.2025.02.891.Peer-Reviewed Original ResearchFirst-episode psychosis patientsSymptom patternsNorth American Prodrome Longitudinal StudyPositive symptoms of psychosisSymptoms of psychosisCHR-P samplesEarly intervention programsPositive symptomsDelusional ideationPsychosis patientsEarly psychosisCHR-PNeural mechanismsDelusionsHallucination onsetHallucinationsPsychosisBaseline assessmentLongitudinal studyIntervention programsSymptomsTime courseParticipantsIdeationOnset
2024
Different learning aberrations relate to delusion-like beliefs with different contents
Rossi-Goldthorpe R, Silverstein S, Gold J, Schiffman J, Waltz J, Williams T, Powers A, Woods S, Zinbarg R, Mittal V, Ellman L, Strauss G, Walker E, Levin J, Castiello S, Kenney J, Corlett P. Different learning aberrations relate to delusion-like beliefs with different contents. Brain 2024, 147: 2854-2866. PMID: 38637303, PMCID: PMC11292907, DOI: 10.1093/brain/awae122.Peer-Reviewed Original ResearchProbabilistic reversal learningDelusion-like beliefsProbabilistic reversal learning taskBlocked cueControl cuesBelief convictionBlock taskClinical high-risk statusKamin blocking taskSymptom-specific effectsPrediction error accountLevels of paranoiaIntact learningAberrant learningKamin blockingParanoid individualsPersecutory delusionsCue presentationReversal learningPredicting psychosisCognitive tasksBehavioral resultsDecreased learningDelusionsParanoia
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