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 questions
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
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 ResearchMeSH KeywordsAdultCognition DisordersFemaleHumansMaleMemory DisordersNeuropsychological TestsQuality of LifeSchizophreniaSemanticsSeverity of Illness IndexConceptsDeficit 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 syndromeImpairmentVerbal 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
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 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
Neurocognitive 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 testPerseverationDeficitsRatingsAffect recognition in deficit syndrome schizophrenia
Bryson G, Bell M, Kaplan E, Greig T, Lysaker P. Affect recognition in deficit syndrome schizophrenia. Psychiatry Research 1998, 77: 113-120. PMID: 9541147, DOI: 10.1016/s0165-1781(97)00140-6.Peer-Reviewed Original ResearchMeSH KeywordsAdultAffectCognition DisordersFemaleHumansMaleMiddle AgedPsychological TestsSchizophreniaSyndromeVideotape Recording
1997
Affect 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 taskCognitive impairment and substance abuse history as predictors of the temporal stability of negative symptoms in schizophrenia.
Lysaker P, Bell M, Bioty S, Zito W. Cognitive impairment and substance abuse history as predictors of the temporal stability of negative symptoms in schizophrenia. The Journal Of Nervous And Mental Disease 1997, 185: 21-6. PMID: 9040529, DOI: 10.1097/00005053-199701000-00004.Peer-Reviewed Original Research
1996
Performance on the Wisconsin Card Sorting Test as a Predictor of Rehospitalization in Schizophrenia
Lysaker P, Bell M, Bioty S, Zito W. Performance on the Wisconsin Card Sorting Test as a Predictor of Rehospitalization in Schizophrenia. The Journal Of Nervous And Mental Disease 1996, 184: 319-320. PMID: 8627280, DOI: 10.1097/00005053-199605000-00010.Peer-Reviewed Original Research
1995
Social Skills at Work
LYSAKER P, BELL M, ZITO W, BIOTY S. Social Skills at Work. The Journal Of Nervous And Mental Disease 1995, 183: 688-692. PMID: 7595430, DOI: 10.1097/00005053-199511000-00003.Peer-Reviewed Original ResearchConceptsCognitive impairmentNegative symptomsWeeks of rehabilitationSupportive group treatmentVocational rehabilitation programRehabilitation programNeuropsychological testingSymptom levelsGroup treatmentPatientsMultiple regression analysisRegression analysisSymptomsSchizophreniaImpairmentDeficitsSubjectsRehabilitationPoor social skillsSocial deficitsSocial skillsHigh levelsLevelsIntakeWeeksCognitive Deficits in Schizophrenia
LYSAKER P, BELL M, BIOTY S. Cognitive Deficits in Schizophrenia. The Journal Of Nervous And Mental Disease 1995, 183: 332-336. PMID: 7745389, DOI: 10.1097/00005053-199505000-00010.Peer-Reviewed Original ResearchConceptsSymptom improvementCognitive impairmentSubgroup of patientsSymptom dimensionsLack of improvementMost patientsClinical effectivenessRehabilitation programWisconsin Card Sorting TestCognitive deficitsPatientsCard Sorting TestNeuropsychological testsSymptom measuresDisorder scoresPotential roleCognitive remediationSchizophreniaImpairmentSorting TestStandardized scoresPresent studyRehabilitationSubjectsRecent studiesWork Rehabilitation and Improvements in Insight in Schizophrenia
LYSAKER P, BELL M. Work Rehabilitation and Improvements in Insight in Schizophrenia. The Journal Of Nervous And Mental Disease 1995, 183: 103-106. PMID: 7844571, DOI: 10.1097/00005053-199502000-00007.Peer-Reviewed Original ResearchConceptsCognitive impairmentSevere cognitive deficitsImpaired insightPsychosocial variablesCognitive deficitsVocational rehabilitation programInsight ratingMultiple regression analysisNegative symptomsWork rehabilitationPoor treatment complianceForm of treatmentSignificant predictorsVocational rehabilitationGreater levelsImpairmentTreatment complianceStandard treatmentLess improvementRehabilitation programSchizophreniaRegression analysisRehabilitationSubjectsDeficits
1994
Insight and Cognitive Impairment in Schizophrenia Performance on Repeated Administrations of the Wisconsin Card Sorting Test
LYSAKER P, BELL M. Insight and Cognitive Impairment in Schizophrenia Performance on Repeated Administrations of the Wisconsin Card Sorting Test. The Journal Of Nervous And Mental Disease 1994, 182: 656-660. PMID: 7964675, DOI: 10.1097/00005053-199411000-00010.Peer-Reviewed Original ResearchConceptsPoor insightCognitive impairmentImpaired insightWisconsin Card Sorting TestCard Sorting TestPoor treatment complianceSorting TestTreatment complianceRepeated administrationNeuropsychological dysfunctionCognitive deficitsPatientsSchizophreniaImpairmentPerformance deficitsAdministrationSchizophrenia performanceSubjectsDeficitsPerseverative errorsDysfunctionEtiologyIllnessEffects of IQ