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
2017
SU26. Measuring Implicit Theory of Mind in Schizophrenia Research: Cross-Cultural Validation
Lee H, Poltorak A, Park K, Assaf M, Bell M, Wexler B, Choi K, Corbera S, Lee H. SU26. Measuring Implicit Theory of Mind in Schizophrenia Research: Cross-Cultural Validation. Schizophrenia Bulletin 2017, 43: s170-s170. PMCID: PMC5476051, DOI: 10.1093/schbul/sbx024.024.Peer-Reviewed Original ResearchSocial cognition tasksConfirmatory factor analysisCognition tasksImplicit theoriesSocial Attribution Task-Multiple ChoiceSocial cognition measuresSocial cognitive impairmentsEarly social developmentSchizophrenia researchFactor analysisSeries of ANOVAsPsychiatric symptomsGood internal consistencyCognition measuresGood model fitConscious awarenessInternal consistency coefficientsPremorbid IQCross-cultural validationMental statesFactor structureHealthy controlsValid measureLanguage differencesExtraneous variables
2008
Neurocognition, Social Cognition, Perceived Social Discomfort, and Vocational Outcomes in Schizophrenia
Bell M, Tsang HW, Greig TC, Bryson GJ. Neurocognition, Social Cognition, Perceived Social Discomfort, and Vocational Outcomes in Schizophrenia. Schizophrenia Bulletin 2008, 35: 738-747. PMID: 18245058, PMCID: PMC2696363, DOI: 10.1093/schbul/sbm169.Peer-Reviewed Original ResearchConceptsSocial cognitionSocial discomfortLatent constructsRehabilitation outcomesPoorer social cognitionTheory of mindImportant mediating variableConfirmatory factor analysisWork therapy programExecutive functioningVerbal memoryAffect recognitionPoor rehabilitation outcomeProcessing speedTest batteryCognitionNeurocognitionMediating variableVocational outcomesThought disorderPath analysisIndirect effectsTherapy programPossible mediatorsFactor analysis
2001
Memory and executive function impairments in deficit syndrome schizophrenia
Bryson G, Whelahan H, Bell M. Memory and executive function impairments in deficit syndrome schizophrenia. Psychiatry Research 2001, 102: 29-37. PMID: 11368837, DOI: 10.1016/s0165-1781(01)00245-1.Peer-Reviewed Original ResearchConceptsDeficit syndrome schizophreniaVerbal memoryWisconsin Card Sorting TestWechsler Adult Intelligence TestVerbal memory factorCognitive impairmentSpecific cognitive impairmentsCard Sorting TestExecutive function impairmentWechsler Memory ScaleAdult Intelligence TestGlobal cognitive impairmentNon-deficit syndromeExecutive processingExecutive functioningExecutive functionMemory factorMemory ScaleSorting TestIntelligence testsDeficit groupMemoryFactor analysisDeficit syndromeImpairment
1994
Concurrent validity of the cognitive component of schizophrenia: Relationship of PANSS scores to neuropsychological assessments
Bell M, Lysaker P, Milstein R, Beam-Goulet J. Concurrent validity of the cognitive component of schizophrenia: Relationship of PANSS scores to neuropsychological assessments. Psychiatry Research 1994, 54: 51-58. PMID: 7701028, DOI: 10.1016/0165-1781(94)90064-7.Peer-Reviewed Original ResearchConceptsWisconsin Card Sorting TestCognitive componentsNeuropsychological testsDigit Symbol Substitution TaskNegative syndromeCard Sorting TestSlosson Intelligence TestGorham's Proverbs TestNeuropsychological measuresSorting TestIntelligence testsSubstitution taskNeuropsychological assessmentPANSS scoresCognitive deficitsProverbs TestNegative Syndrome ScaleCognitive symptomsValid measureTest scoresConcurrent validityDiagnosis of schizophreniaCognitive impairmentSyndrome ScaleFactor analysis