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
2023
Deep Action Recognition for Cognitive Assessment
Elmi S, Bell M. Deep Action Recognition for Cognitive Assessment. 2023, 329-334. DOI: 10.1145/3594806.3594813.Peer-Reviewed Original ResearchExecutive functioningCognitive AssessmentAction recognitionHuman action recognitionAction informationAccuracy scoresSkeleton-based action recognitionRhythm scoresFunctioningHuman body jointsHuman poseRecognitionMental diseasesADHDScoresSchizophreniaBody jointsDifferent datasetsReal-world applicationsAttentionAssessmentPsychiatristsIntrinsic neural timescales in autism spectrum disorder and schizophrenia. A replication and direct comparison study
Uscătescu L, Kronbichler M, Said-Yürekli S, Kronbichler L, Calhoun V, Corbera S, Bell M, Pelphrey K, Pearlson G, Assaf M. Intrinsic neural timescales in autism spectrum disorder and schizophrenia. A replication and direct comparison study. Schizophrenia 2023, 9: 18. PMID: 36997542, PMCID: PMC10063601, DOI: 10.1038/s41537-023-00344-1.Peer-Reviewed Original ResearchIntrinsic neural timescalesPatient groupBrain areasLeft lateral occipital gyrusRight post-central gyrusAutism spectrum disorderNeural timescalesPost-central gyrusLateral occipital gyrusDirect comparison studiesSpectrum disorderOccipital gyrusSymptom severitySchizophreniaGroup differencesGyrusDisordersPresent studyGroupSeverity
2022
Deep-Cogn: Skeleton-based Human Action Recognition for Cognitive Behavior Assessment
Elmi S, Bell M, Tan K. Deep-Cogn: Skeleton-based Human Action Recognition for Cognitive Behavior Assessment. 2022, 00: 692-699. DOI: 10.1109/ictai56018.2022.00107.Peer-Reviewed Original ResearchExecutive functioningHuman action recognitionAction recognitionCognitive AssessmentAction informationAccuracy scoresSkeleton-based action recognitionRhythm scoresFunctioningBehavior assessmentHuman body jointsRecognitionHuman poseMental diseasesADHDScoresSchizophreniaBody jointsDifferent datasetsReal-world applicationsAttentionAssessmentPsychiatristsWorld applications
2019
16.3 ARE VISUAL MOTION PERCEPTION AND DETECTION OF ANIMACY CRITICAL TO HIGHER-ORDER SOCIAL COGNITIVE FUNCTION IN SCHIZOPHRENIA?
Johannesen J, Lysaker P, James A, Kenney J, Bell M. 16.3 ARE VISUAL MOTION PERCEPTION AND DETECTION OF ANIMACY CRITICAL TO HIGHER-ORDER SOCIAL COGNITIVE FUNCTION IN SCHIZOPHRENIA? Schizophrenia Bulletin 2019, 45: s114-s114. PMCID: PMC6455344, DOI: 10.1093/schbul/sbz022.062.Peer-Reviewed Original Research
2018
F254. Social Processing Subtyping and Functional Neural Architecture Across Autism Spectrum Disorder, Schizophrenia and Non-Clinical Sample
Assaf M, Corbera S, Rabany L, Brocke S, Pitman B, Johannesen J, Bell M, Calhoun V, Wexler B, Pearlson G. F254. Social Processing Subtyping and Functional Neural Architecture Across Autism Spectrum Disorder, Schizophrenia and Non-Clinical Sample. Biological Psychiatry 2018, 83: s337-s338. DOI: 10.1016/j.biopsych.2018.02.868.Peer-Reviewed Original Research
2014
Poster #M95 A RANDOMIZED CONTROLLED TRIAL OF COGNITIVE REMEDIATION AFTER A FIRST EPISODE OF SCHIZOPHRENIA: IMPROVING COGNITION AND WORK/SCHOOL FUNCTIONING
Nuechterlein K, Ventura J, Subotnik K, Gretchen-Doorly D, Turner L, Casaus L, Luo J, Bell M, Medalia A. Poster #M95 A RANDOMIZED CONTROLLED TRIAL OF COGNITIVE REMEDIATION AFTER A FIRST EPISODE OF SCHIZOPHRENIA: IMPROVING COGNITION AND WORK/SCHOOL FUNCTIONING. Schizophrenia Research 2014, 153: s224. DOI: 10.1016/s0920-9964(14)70645-0.Peer-Reviewed Original Research
2012
Poster #227 RELATIONSHIPS OF OBJECT RELATIONS TO EMPATHY AND SOCIAL SKILLS PERFORMANCE IN SCHIZOPHRENIA AND HEALTHY CONTROLS
Bell M, Corbera S, Ikezawa S, Wexler B. Poster #227 RELATIONSHIPS OF OBJECT RELATIONS TO EMPATHY AND SOCIAL SKILLS PERFORMANCE IN SCHIZOPHRENIA AND HEALTHY CONTROLS. Schizophrenia Research 2012, 136: s172-s173. DOI: 10.1016/s0920-9964(12)70540-6.Peer-Reviewed Original Research
2010
Social attribution test — multiple choice (SAT-MC) in schizophrenia: Comparison with community sample and relationship to neurocognitive, social cognitive and symptom measures
Bell MD, Fiszdon JM, Greig TC, Wexler BE. Social attribution test — multiple choice (SAT-MC) in schizophrenia: Comparison with community sample and relationship to neurocognitive, social cognitive and symptom measures. Schizophrenia Research 2010, 122: 164-171. PMID: 20400268, PMCID: PMC2908733, DOI: 10.1016/j.schres.2010.03.024.Peer-Reviewed Original ResearchMeSH KeywordsAdultAnalysis of VarianceChoice BehaviorCognition DisordersDisability EvaluationFemaleHumansInterpersonal RelationsLogistic ModelsMaleMiddle AgedNeuropsychological TestsPsychiatric Status Rating ScalesReproducibility of ResultsResidence CharacteristicsROC CurveSchizophreniaSchizophrenic PsychologySocial PerceptionConceptsSocial Attribution Task-Multiple ChoiceSocial cognitive measuresCognitive measuresAffect recognitionCommunity sampleSocial cognitive impairmentsTheory of mindSignificant group differencesMATRICS batteryNeurocognitive measuresSCZ participantsVerbal processesAutism researchCognition indexLongitudinal designSymptom measuresGroup differencesCognitive impairmentCommunity-dwelling participantsGeometric figuresSchizoaffective disorderParticipantsSchizophreniaImpairmentMultiple-choice questionsMemory profiles in schizophrenia: Categorization validity and stability
Bell MD, Johannesen JK, Greig TC, Wexler BE. Memory profiles in schizophrenia: Categorization validity and stability. Schizophrenia Research 2010, 118: 26-33. PMID: 20085855, PMCID: PMC3699867, DOI: 10.1016/j.schres.2009.12.037.Peer-Reviewed Original ResearchConceptsSocial cognitive domainsMemory profileCognitive domainsHopkins Verbal LearningCluster analytic techniquesSocial cognitionVerbal learningVerbal memorySubcortical impairmentNeuropsychological assessmentCommunity mental health centerCortical impairmentMental health centersSchizoaffective disorderMotor speedCurrent studySchizophreniaIllness characteristicsMemoryUrban community mental health centerImpairmentSimple decision rulesCognitionCluster analysisCluster groups
2008
Neurocognitive enhancement therapy with vocational services: Work outcomes at two-year follow-up
Bell MD, Zito W, Greig T, Wexler BE. Neurocognitive enhancement therapy with vocational services: Work outcomes at two-year follow-up. Schizophrenia Research 2008, 105: 18-29. PMID: 18715755, DOI: 10.1016/j.schres.2008.06.026.Peer-Reviewed Original ResearchMeSH KeywordsAdultCognition DisordersCognitive Behavioral TherapyCombined Modality TherapyEmploymentEmployment, SupportedFemaleFollow-Up StudiesHumansMaleNeuropsychological TestsOccupational TherapyPsychiatric Status Rating ScalesPsychotherapy, GroupPsychotic DisordersRehabilitation, VocationalSchizophreniaSchizophrenic PsychologyTreatment OutcomeVocational EducationConceptsNeurocognitive enhancement therapyEnhancement therapyComputer-based cognitive trainingCommunity-based vocational servicesWeekly support groupsCognitive remediationCognitive trainingExecutive functionWork outcomesRemediation programVocational outcomesCommunity mental health centerMental health centersCognitive impairmentSixth quarterVocational servicesNet trainingTherapy outcomeSupport groupsCompetitive employmentSchizophreniaRehabilitation methodsSchizoaffective patientsEmployment programsTrainingNeurocognitive Enhancement Therapy and Competitive Employment in Schizophrenia: Effects on Clients with Poor Community Functioning
BELL M, ZITO W, GREIG T, WEXLER B. Neurocognitive Enhancement Therapy and Competitive Employment in Schizophrenia: Effects on Clients with Poor Community Functioning. American Journal Of Psychiatric Rehabilitation 2008, 11: 109-122. DOI: 10.1080/15487760801963397.Peer-Reviewed Original ResearchNeurocognitive enhancement therapyEnhancement therapyVocational outcomesDiagnosis of schizophreniaCompetitive employmentCompetitive employment ratesTreat sampleHeinrichs QualitySchizoaffective disorderFunctioning patientsTotal hoursTherapy outcomeMore total hoursCommunity functioningLogistic regressionActive interventionLife ScaleOutcomesPatientsTherapyHigh rateCognitive remediationExecutive functionPoor communitiesSchizophrenia
2003
Neurocognitive enhancement therapy in schizophrenia: Durability of effects on neuropsychological test performance six months after training
Bell M, Bryson G, Greig T, Wexler B. Neurocognitive enhancement therapy in schizophrenia: Durability of effects on neuropsychological test performance six months after training. Schizophrenia Research 2003, 60: 273. DOI: 10.1016/s0920-9964(03)80430-9.Peer-Reviewed Original ResearchNormalization of working memory in schizophrenia following cognitive remediation: Durability of effects
Fiszdon J, Bryson G, Wexler B, Bell M. Normalization of working memory in schizophrenia following cognitive remediation: Durability of effects. Schizophrenia Research 2003, 60: 322. DOI: 10.1016/s0920-9964(03)80282-7.Peer-Reviewed Original ResearchINITIAL AND FINAL WORK PERFORMANCE IN SCHIZOPHRENIA:: COGNITIVE AND SYMPTOM PREDICTORS
BRYSON G, BELL M. INITIAL AND FINAL WORK PERFORMANCE IN SCHIZOPHRENIA:: COGNITIVE AND SYMPTOM PREDICTORS. The Journal Of Nervous And Mental Disease 2003, 191: 87. DOI: 10.1097/00005053-200302000-00004.Peer-Reviewed Original ResearchWork performanceVerbal memoryNeuropsychological variablesCognitive test variablesIndividual performance curvesStrongest predictorCognitive flexibilityCognitive impulsivityVerbal learningCognitive abilitiesWork rehabilitation programCognitive functioningSuch deficitsTask variablesPsychomotor functioningNeuropsychological testingIdiosyncratic thinkingVocational developmentTime-sensitive fashionSchizoaffective disorderMemorySchizophreniaFunctioningSuccessful rehabilitationRehabilitation programA behavioral intervention to improve work performance in schizophrenia: Work behavior inventory feedback
Bell M, Lysaker P, Bryson G. A behavioral intervention to improve work performance in schizophrenia: Work behavior inventory feedback. Journal Of Vocational Rehabilitation 2003, 18: 43-50. DOI: 10.3233/jvr-2003-00172.Peer-Reviewed Original ResearchBehavioral interventionsSense of purposeGoal settingIncrease job retentionAssessment of work performanceMeasures of motivationFeelings of motivationWork rehabilitationWork performanceJob retentionSchizoaffective disorderInterpersonal behaviorSocial skillsInterventionPerformance feedbackMeasure progressSchizophreniaImprove work performanceWork supervisorsPersonal presentationEnjoymentRehabilitationSchizoaffectiveSubscalesLifeDomain specific work performance change for people with schizophrenia
Bryson G, Greig T, Bell M. Domain specific work performance change for people with schizophrenia. Journal Of Vocational Rehabilitation 2003, 19: 167-172. DOI: 10.3233/jvr-2003-00215.Peer-Reviewed Original ResearchWork Behavior InventorySchizoaffective disorderBehavior InventoryRating instrumentSocial skillsWork rehabilitation programSchizophreniaBehavioral observationsWeekly participationLevel of performanceWork domainVocational rehabilitationRehabilitation programPersonal presentationService deliveryParticipantsPerformance changesGlobal OutcomesSchizoaffectiveParticipants' workInterview methodWork qualityElement's abilityProficiency levelsWork habits
2000
Emotional discomfort and impairments in verbal memory in schizophrenia
Lysaker P, Bell M, Greig T, Bryson G. Emotional discomfort and impairments in verbal memory in schizophrenia. Psychiatry Research 2000, 97: 51-59. PMID: 11104857, DOI: 10.1016/s0165-1781(00)00221-3.Peer-Reviewed Original ResearchConceptsVerbal memoryEmotional discomfortLogical memoryVerbal memory deficitsVerbal memory testsDigit Span subtestForms of memorySymptoms of dysphoriaEmotional discomfort symptomsCognitive symptom scoresMemory testPsychosocial deficitsMemory deficitsNegative Syndrome ScaleConcurrent measuresMemoryHopkins testFactor scoresSyndrome ScalePoor performanceMultiple regressionSchizophreniaGreater levelsDeficitsImpairment
1999
Internal consistency, temporal stability and neuropsychological correlates of three cognitive components of the Positive and Negative Syndrome Scale (PANSS)
Bryson G, Bell M, Greig T, Kaplan E. Internal consistency, temporal stability and neuropsychological correlates of three cognitive components of the Positive and Negative Syndrome Scale (PANSS). Schizophrenia Research 1999, 38: 27-35. PMID: 10427608, DOI: 10.1016/s0920-9964(99)00004-3.Peer-Reviewed Original ResearchConceptsNegative Syndrome ScaleSyndrome ScaleInternal consistencyCognitive componentsDSM-IV diagnosisSymptom compositionConcurrent validityDiscriminant validityCognitive dysfunctionCognitive test measuresSchizoaffective disorderPANSS factorsTemporal stabilityNegative symptomsAdequate temporal stabilityPANSS dataFactor analytic studiesSymptomsSchizophrenia researchSimilar psychometric propertiesSchizophreniaDisorganized symptomsNeuropsychological correlatesCognitive domainsPoorer psychometricsThe Work Behavior Inventory: Prediction of Future Work Success of People with Schizophrenia
Bryson G, Bell M, Greig T, Kaplan E. The Work Behavior Inventory: Prediction of Future Work Success of People with Schizophrenia. Psychiatric Rehabilitation Journal 1999, 23: 113-117. DOI: 10.1037/h0095181.Peer-Reviewed Original ResearchRehabilitation programWork Behavior InventoryWBI scoreComposite scoreSevere mental illnessPredictive validityRehabilitation specialistsBehavior InventoryMental illnessWeek 3Month periodWork activitiesScoresProgram completionFinal evaluationHoursTotal numberAssessment of workIllnessSchizophreniaActivityMonths