2024
Disentangling negative and positive symptoms in schizophrenia and autism spectrum disorder
Corbera S, Wexler B, Bell M, Pittman B, Pelphrey K, Pearlson G, Assaf M. Disentangling negative and positive symptoms in schizophrenia and autism spectrum disorder. Schizophrenia Research 2024, 271: 1-8. PMID: 39002525, PMCID: PMC11384336, DOI: 10.1016/j.schres.2024.07.002.Peer-Reviewed Original ResearchAutism spectrum disorderPositive and Negative Syndrome ScaleAutism Diagnostic Observation Schedule-GenericExperiential negative symptomsPositive symptomsNegative symptomsExploratory factor analysisSpectrum disorderNegative Syndrome ScaleTarget negative symptomsSyndrome ScaleDiscriminant function analysisSZ relativesAssociated with quality of lifeSchizophreniaSocial skillsSocial functioningDiagnostic classificationAutismFactor analysisAssociated with qualityPredictor of diagnosisSymptomsDisordersQuality of life
1997
Clinical Benefits of Paid Work Activity in Schizophrenia: 1-year Followup
Bell M, Lysaker P. Clinical Benefits of Paid Work Activity in Schizophrenia: 1-year Followup. Schizophrenia Bulletin 1997, 23: 317-328. PMID: 9165640, DOI: 10.1093/schbul/23.2.317.Peer-Reviewed Original ResearchConceptsVeterans Affairs Medical CenterLower rehospitalization ratesPercent of participantsClinical improvementRehospitalization ratesClinical outcomesClinical benefitTotal symptomsMedical CenterRehabilitative outcomesSchizoaffective disorderFollowupPositive symptomsClinical interventionsLimitations of workSymptomsSignificant decreaseSchizophreniaPay subjectsRehabilitative effectsWork activitiesGreater improvementSubjectsMonthsMore hours
1995
The frequency of associations between positive and negative symptoms and dysphoria in schizophrenia
Lysaker P, Bell M, Bioty S, Zito W. The frequency of associations between positive and negative symptoms and dysphoria in schizophrenia. Comprehensive Psychiatry 1995, 36: 113-117. PMID: 7758296, DOI: 10.1016/s0010-440x(95)90105-1.Peer-Reviewed Original Research
1994
Relationship of Positive and Negative Symptoms to Cocaine Abuse in Schizophrenia
LYSAKER P, BELL M, BEAM-GOULET J, MILSTEIN R. Relationship of Positive and Negative Symptoms to Cocaine Abuse in Schizophrenia. The Journal Of Nervous And Mental Disease 1994, 182: 109-112. PMID: 8308528, DOI: 10.1097/00005053-199402000-00008.Peer-Reviewed Original ResearchConceptsCocaine-abusing subjectsNegative Syndrome ScaleCocaine abuseNegative symptomsParanoid subtypeSyndrome ScaleSubstance abuseMore frequent hospitalizationsFirst psychiatric hospitalizationLifetime substance abuseSevere negative symptomsSubstance abuse historyFrequent hospitalizationsPsychiatric hospitalizationAlcohol abusePositive symptomsMultivariate analysisSymptomsPatientsHospitalizationSignificant differencesSubtypesDiagnosisSchizophreniaMonths