2025
Evaluating the Exposome Score for Schizophrenia in a Transdiagnostic Psychosis Cohort: Associations With Psychosis Risk, Symptom Severity, and Personality Traits
Kromenacker B, Yassin W, Keshavan M, Parker D, Thakkar V, Pearlson G, Keedy S, McDowell J, Gershon E, Ivleva E, Hill S, Clementz B, Tamminga C. Evaluating the Exposome Score for Schizophrenia in a Transdiagnostic Psychosis Cohort: Associations With Psychosis Risk, Symptom Severity, and Personality Traits. Schizophrenia Bulletin 2025, 51: 1454-1463. PMID: 39777534, PMCID: PMC12414550, DOI: 10.1093/schbul/sbae219.Peer-Reviewed Original ResearchES-SCZSymptom severityExposome scoreModel of personalityPersonality factor scoresBipolar-Schizophrenia NetworkExpression of psychosisMood symptom severityMore severe symptomsFamily socioeconomic statusPatterns of associationDecreased conscientiousnessIncreased neuroticismPsychosis cohortPsychosis samplePsychosis groupPsychotic diagnosesInvestigate causal pathwaysPsychosis riskBipolar disorderPersonality traitsCausal pathwaysWithin-group associationsPsychosisFactor scores
2024
Occasional cannabis use is associated with higher premorbid functioning and IQ in youth at clinical high-risk (CHR) for psychosis: Parallel findings to psychosis cohorts
Kennedy L, Ku B, Addington J, Amir C, Bearden C, Cannon T, Carrión R, Cornblatt B, Keshavan M, Perkins D, Mathalon D, Stone W, Walker E, Woods S, Cadenhead K. Occasional cannabis use is associated with higher premorbid functioning and IQ in youth at clinical high-risk (CHR) for psychosis: Parallel findings to psychosis cohorts. Schizophrenia Research 2024, 271: 319-331. PMID: 39084107, PMCID: PMC11955428, DOI: 10.1016/j.schres.2024.07.032.Peer-Reviewed Original ResearchClinical high riskCannabis use frequencyPremorbid functioningCannabis usePsychosis cohortSocial functioningCannabis usersAssociated with greater symptom severityAssociated with better neurocognitionNorth American Prodrome Longitudinal StudyClinical high-risk participantsClinical high-risk youthClinical high-risk populationsUse groupRates of cannabis useCannabis use groupsMeasures of IQCannabis use patternsGreater symptom severityHigher premorbid functioningFollow-up analysisPsychosis sampleHigher IQNeurocognitive domainsFirst-episode
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