Using dimensionality-reduction techniques to understand the organization of psychotic symptoms in persistent psychotic illness and first episode psychosis
Fleming L, Lemonde A, Benrimoh D, Gold J, Taylor J, Malla A, Joober R, Iyer S, Lepage M, Shah J, Corlett P. Using dimensionality-reduction techniques to understand the organization of psychotic symptoms in persistent psychotic illness and first episode psychosis. Scientific Reports 2023, 13: 4841. PMID: 36964175, PMCID: PMC10039017, DOI: 10.1038/s41598-023-31909-w.Peer-Reviewed Original ResearchConceptsHallucinations/delusionsFirst-episode psychosisFirst-episode psychosis participantsEarly intervention programsPathophysiological mechanismsUnderlying pathophysiologyEpisode psychosisPsychotic illnessPsychotic symptomsPsychotic disordersSchizoaffective disorderAuditory hallucinationsPositive symptomsHallucination severityNegative symptomsSymptomsDisorganization symptomsIntervention programsHallucinationsIllnessPsychosis participantsPsychosisDelusionsDisordersParticipantsThe reliability and validity of the revised Green et al. paranoid thoughts scale in individuals at clinical high‐risk for psychosis
Williams T, Walker E, Strauss G, Woods S, Powers A, Corlett P, Schiffman J, Waltz J, Gold J, Silverstein S, Ellman L, Zinbarg R, Mittal V. The reliability and validity of the revised Green et al. paranoid thoughts scale in individuals at clinical high‐risk for psychosis. Acta Psychiatrica Scandinavica 2023, 147: 623-633. PMID: 36905387, PMCID: PMC10463775, DOI: 10.1111/acps.13545.Peer-Reviewed Original ResearchConceptsCHR individualsClinical controlFull psychosisHealthy controlsGeneral populationPsychosis symptomsCHR participantsPoor social functioningGreen Paranoid Thoughts ScalePsychosisGroup differencesSocial functioningConfirmatory factor analysisParanoid Thoughts ScaleInterview measuresSeverity continuumTwo-factor structureCritical populationSelf-report measuresPresent studyDiscriminant validityPsychometric indicesParanoid thoughtsIndividualsParticipants