2016
Cognitive remediation for individuals with psychosis: efficacy and mechanisms of treatment effects
Fiszdon J, Choi K, Bell M, Choi J, Silverstein S. Cognitive remediation for individuals with psychosis: efficacy and mechanisms of treatment effects. Psychological Medicine 2016, 46: 3275-3289. PMID: 27605034, DOI: 10.1017/s0033291716001951.Peer-Reviewed Original ResearchConceptsVerbal learningVisuospatial memoryCognitive remediation interventionsTraining task performanceIntrapsychic foundations subscalesMedium-sized correlationsPost-training improvementInterviewer-rated measuresSelf-report measuresIndependent living skillsWait-list controlEvidence-based treatmentsCognitive remediationVerbal memoryNeuropsychological measuresRemediation interventionsTask performanceTask improvementTraining tasksLiving skillsNeuropsychological improvementCR efficacyGroup differencesMemoryFunctioning
2011
Social Cognitive Impairments and Negative Symptoms in Schizophrenia: Are There Subtypes With Distinct Functional Correlates?
Bell MD, Corbera S, Johannesen JK, Fiszdon JM, Wexler BE. Social Cognitive Impairments and Negative Symptoms in Schizophrenia: Are There Subtypes With Distinct Functional Correlates? Schizophrenia Bulletin 2011, 39: 186-196. PMID: 21976710, PMCID: PMC3523908, DOI: 10.1093/schbul/sbr125.Peer-Reviewed Original ResearchConceptsHigher social cognitionLower social cognitionSocial cognitive impairmentsHigh-negative symptom groupSocial cognitionNegative-symptom groupNegative symptomsCaruso Emotional Intelligence TestSocial cognitive measuresEmotional Intelligence TestSocial cognitive factorsCognitive impairmentSymptom groupsNegative symptom factorMayer-SaloveyCommon assessment instrumentsCognitive factorsCognitive measuresSubstance abuse historyIntelligence testsCore featuresAbuse historyIndependent dimensionsDistinct factorsSymptom factors
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 programsTrainingNeurocognition, 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
Patterns of object relations and reality testing deficits in schizophrenia: Clusters and their symptom and personality correlates
Bell M, Greig T, Bryson G, Kaplan E. Patterns of object relations and reality testing deficits in schizophrenia: Clusters and their symptom and personality correlates. Journal Of Clinical Psychology 2001, 57: 1353-1367. PMID: 11745581, DOI: 10.1002/jclp.1102.Peer-Reviewed Original ResearchVerbal Working Memory Impairment in Schizophrenia
BELL M, BRYSON G, WEXLER B. Verbal Working Memory Impairment in Schizophrenia. American Journal Of Psychiatry 2001, 158: 660-660. PMID: 11282724, DOI: 10.1176/appi.ajp.158.4.660.Peer-Reviewed Original Research
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 levelsDeficitsImpairmentObject relations and reality testing in early‐ and late‐onset schizophrenia
Greig T, Bell M, Kaplan E, Bryson G. Object relations and reality testing in early‐ and late‐onset schizophrenia. Journal Of Clinical Psychology 2000, 56: 505-517. PMID: 10775044, DOI: 10.1002/(sici)1097-4679(200004)56:4<505::aid-jclp5>3.0.co;2-b.Peer-Reviewed Original Research
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 psychometricsPersonality and Psychopathology in Schizophrenia: The Association between Personality Traits and Symptoms
Lysaker P, Bell M, Kaplan E, Greig T, Bryson G. Personality and Psychopathology in Schizophrenia: The Association between Personality Traits and Symptoms. Psychiatry 1999, 62: 36-48. PMID: 10224622, DOI: 10.1080/00332747.1999.11024850.Peer-Reviewed Original ResearchAdaptation, PsychologicalAdultExtraversion, PsychologicalHumansIndividualityMaleMiddle AgedMultivariate AnalysisNeurotic DisordersPersonalityPersonality InventoryProbabilityPsychiatric Status Rating ScalesPsychometricsPsychotic DisordersResearch DesignSchizophreniaSchizophrenic PsychologySubstance-Related DisordersWechsler ScalesPersonality as a Predictor of the Variability of Insight in Schizophrenia
Lysaker P, Bell M, Bryson G, Kaplan E. Personality as a Predictor of the Variability of Insight in Schizophrenia. The Journal Of Nervous And Mental Disease 1999, 187: 119-122. PMID: 10067955, DOI: 10.1097/00005053-199902000-00011.Peer-Reviewed Original Research
1998
The Functional Consequences of Memory Impairments on Initial Work Performance in People with Schizophrenia
BRYSON G, BELL M, KAPLAN E, GREIG T. The Functional Consequences of Memory Impairments on Initial Work Performance in People with Schizophrenia. The Journal Of Nervous And Mental Disease 1998, 186: 610-615. PMID: 9788637, DOI: 10.1097/00005053-199810000-00004.Peer-Reviewed Original ResearchConceptsVerbal memory variablesWork Behavior InventoryVerbal memory impairmentMemory impairmentMemory variablesVerbal memory scoresDomains of functionMemory scoresSocial skillsInitial work functionWork domainWork performanceBehavior InventoryVocational rehabilitation programMultiple regression analysisCognitive impairmentPersonal presentationSchizophrenia researchWork qualitySchizoaffective disorderWork habitsImpairmentTotal scoreRehabilitation programSchizophreniaPersonality and psychosocial dysfunction in schizophrenia: the association of extraversion and neuroticism to deficits in work performance
Lysaker P, Bell M, Kaplan E, Bryson G. Personality and psychosocial dysfunction in schizophrenia: the association of extraversion and neuroticism to deficits in work performance. Psychiatry Research 1998, 80: 61-68. PMID: 9727964, DOI: 10.1016/s0165-1781(98)00049-3.Peer-Reviewed Original ResearchInsight and Interpersonal Function in Schizophrenia
LYSAKER P, BELL M, BRYSON G, KAPLAN E. Insight and Interpersonal Function in Schizophrenia. The Journal Of Nervous And Mental Disease 1998, 186: 432-436. PMID: 9680045, DOI: 10.1097/00005053-199807000-00008.Peer-Reviewed Original ResearchNeurocognitive function and insight in schizophrenia: support for an association with impairments in executive function but not with impairments in global function
Lysaker P, Bell M, Bryson G, Kaplan E. Neurocognitive function and insight in schizophrenia: support for an association with impairments in executive function but not with impairments in global function. Acta Psychiatrica Scandinavica 1998, 97: 297-301. PMID: 9570491, DOI: 10.1111/j.1600-0447.1998.tb10003.x.Peer-Reviewed Original ResearchConceptsExecutive functionImpaired insightWisconsin Card Sorting TestFrontal lobe functionCard Sorting TestGlobal cognitive functionLobe functionSorting TestNeuropsychological testsCognitive functionNegative Syndrome ScaleNeurocognitive functionInsight ratingNeurocognitive impairmentAbstract FlexibilitySyndrome ScaleSchizoaffective disorderMemorySchizophreniaImpairmentVigilanceScheffe testPerseverationDeficitsRatings
1997
Wisconsin card sorting test dimensions in schizophrenia: Factorial, predictive, and divergent validity
Bell M, Greig T, Kaplan E, Bryson G. Wisconsin card sorting test dimensions in schizophrenia: Factorial, predictive, and divergent validity. Journal Of Clinical And Experimental Neuropsychology 1997, 19: 933-941. PMID: 9524888, DOI: 10.1080/01688639708403774.Peer-Reviewed Original ResearchPositive and negative affect recognition in schizophrenia: a comparison with substance abuse and normal control subjects
Bell M, Bryson G, Lysaker P. Positive and negative affect recognition in schizophrenia: a comparison with substance abuse and normal control subjects. Psychiatry Research 1997, 73: 73-82. PMID: 9463840, DOI: 10.1016/s0165-1781(97)00111-x.Peer-Reviewed Original ResearchMeSH KeywordsAdultAffective SymptomsAnalysis of VarianceCase-Control StudiesChi-Square DistributionEmotionsFemaleHumansMalePsychology, ExperimentalPsychometricsReference ValuesReproducibility of ResultsSampling StudiesSchizophrenic PsychologySocial PerceptionSubstance-Related DisordersVideotape RecordingConceptsAffect recognitionSchizophrenia sampleSocial skills impairmentSubstance abuseHigh EE familiesSubstance-abusing subjectsSignificant group differencesRecognition deficitsAffect statesSkill impairmentStimulus presentationTest-retest reliabilityDifferential impairmentPredominant affectAffect interactionEE familiesDifficulty of itemsSchizophrenia groupGroup differencesBrain functionSchizophrenia subjectsMild rangeSevere rangeModerate rangeAbuse subjectsAffect recognition in schizophrenia: a function of global impairment or a specific cognitive deficit
Bryson G, Bell M, Lysaker P. Affect recognition in schizophrenia: a function of global impairment or a specific cognitive deficit. Psychiatry Research 1997, 71: 105-113. PMID: 9255855, DOI: 10.1016/s0165-1781(97)00050-4.Peer-Reviewed Original ResearchConceptsWisconsin Card Sorting TestContinuous performance taskBell Lysaker Emotion Recognition TaskHopkins Verbal Learning TestVerbal Learning TestCognitive variablesLearning TestAffect recognition impairmentsEmotion recognition taskSpecific cognitive deficitsCard Sorting TestDigit Symbol Substitution TestAdult Intelligence ScaleDigit Symbol subtestWAIS-R IQsRecognition impairmentAffect recognitionEmotion recognitionWechsler memoryPerseverative errorsSorting TestPerformance taskIntelligence ScaleMore errorsRecognition task