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
Aberrant hippocampus and amygdala morphology associated with cognitive deficits in schizophrenia
Peterson B, Kaur T, Sawardekar S, Colibazzi T, Hao X, Wexler B, Bansal R. Aberrant hippocampus and amygdala morphology associated with cognitive deficits in schizophrenia. Frontiers In Cellular Neuroscience 2023, 17: 1126577. PMID: 36909281, PMCID: PMC9996667, DOI: 10.3389/fncel.2023.1126577.Peer-Reviewed Original ResearchClinical symptomsHealthy controlsAnatomical abnormalitiesMemory deficitsPathogenesis of schizophreniaSeverity of symptomsEffects of schizophreniaHippocampal bodyAmygdala morphologyLimbic regionsPatientsHippocampusInward deformationCognitive deficitsBrain structuresHC participantsSchizophreniaAmygdalaSymptomsMemory performanceContinuum of severityAnatomical MRIPrimary disturbanceMemory scoresAbnormalities
2021
Atypical Dynamic Functional Network Connectivity State Engagement during Social–Emotional Processing in Schizophrenia and Autism
Hyatt CJ, Wexler BE, Pittman B, Nicholson A, Pearlson GD, Corbera S, Bell MD, Pelphrey K, Calhoun VD, Assaf M. Atypical Dynamic Functional Network Connectivity State Engagement during Social–Emotional Processing in Schizophrenia and Autism. Cerebral Cortex 2021, 32: 3406-3422. PMID: 34875687, PMCID: PMC9376868, DOI: 10.1093/cercor/bhab423.Peer-Reviewed Original ResearchConceptsAutism spectrum disorderSocial-emotional processingDFNC statesDifferent neural processingFunction of emotionFunctional connectivity patternsHappy videosSad videosNeutral contentNeural processingTask scoresSpectrum disorderDifferential engagementDFNC measuresMore timeYoung adultsConnectivity patternsState engagementEmotionsSchizophreniaIndependent component analysisEngagementProcessingSignificant relationshipAlexithymiaPredictors of social functioning and quality of life in schizophrenia and autism spectrum disorder
Corbera S, Wexler BE, Bell MD, Pearlson G, Mayer S, Pittman B, Belamkar V, Assaf M. Predictors of social functioning and quality of life in schizophrenia and autism spectrum disorder. Psychiatry Research 2021, 303: 114087. PMID: 34246005, PMCID: PMC8373814, DOI: 10.1016/j.psychres.2021.114087.Peer-Reviewed Original ResearchConceptsSocial functioningCognitive empathyNegative symptomsAutism spectrum disorderWorse social functioningGreater negative symptomsHigher social functioningAffective empathySocial cognitionPersonal distressCommunication deficitsSpectrum disorderFunctioning impairmentQuality of lifeEmpathy scoresASDHigher QOLIQHealthy controlsEmpathySymptom severityDeficitsSchizophreniaWorse QOLFunctioning
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
2016
Cognitive remediation for adults with schizophrenia: Does age matter?
Corbera S, Wexler BE, Poltorak A, Thime WR, Kurtz MM. Cognitive remediation for adults with schizophrenia: Does age matter? Psychiatry Research 2016, 247: 21-27. PMID: 27863314, PMCID: PMC5248553, DOI: 10.1016/j.psychres.2016.10.084.Peer-Reviewed Original ResearchConceptsCognitive remediationSubstantial individual differencesEarly chronic groupsOlder client populationNovel behavioral interventionSubsample of clientsRole of ageMemory measuresIndividual differencesStrategy acquisitionCognitive outcomesCognitive deficitsTask practiceRandomized control trialBehavioral interventionsTrend levelEmpirical supportSchizophreniaTreatment responseAge matterClient populationEarly-stage groupAge rangeGreater improvementAdults
2014
Increasing stimulus duration can normalize late-positive event related potentials in people with schizophrenia: Possible implications for understanding cognitive deficits
Wexler BE, Ikezawa S, Corbera S. Increasing stimulus duration can normalize late-positive event related potentials in people with schizophrenia: Possible implications for understanding cognitive deficits. Schizophrenia Research 2014, 158: 163-169. PMID: 25096541, PMCID: PMC4240766, DOI: 10.1016/j.schres.2014.07.012.Peer-Reviewed Original ResearchConceptsHealthy controlsCognitive deficitsMs stimuliStructured Clinical InterviewDSM-IV criteriaModulation of responsesStimulus durationPictures of handsEvent Related PotentialsAdult outpatientsPain stimuliHealthy peoplePatientsClinical InterviewSchizoaffective disorderSchizophreniaMs stimulusSensory inputStimulus onsetSame durationDurationStimuliDeficitsResponseNeutral stimuliNeural activation abnormalities during self-referential processing in schizophrenia: An fMRI study
Liu J, Corbera S, Wexler BE. Neural activation abnormalities during self-referential processing in schizophrenia: An fMRI study. Psychiatry Research 2014, 222: 165-171. PMID: 24795158, DOI: 10.1016/j.pscychresns.2014.04.003.Peer-Reviewed Original ResearchConceptsActivation abnormalitiesHealthy controlsCortical midline structuresMidline structuresBlood oxygenation level-dependent (BOLD) signalLevel-dependent signalFunctional magnetic resonanceGeneral neuropathologySchizophrenia altersTemporal gyrusPatientsAbnormalitiesSchizophreniaActivation paradigmGreater signal increaseGroup differencesFMRI studyPosterior regionSelf-referential processingMothersMagnetic resonanceDependent signalsNeuropathologyControlGyrus
2013
Factor Structure of Social Cognition in Schizophrenia: Is Empathy Preserved?
Corbera S, Wexler BE, Ikezawa S, Bell MD. Factor Structure of Social Cognition in Schizophrenia: Is Empathy Preserved? Schizophrenia Research And Treatment 2013, 2013: 409205. PMID: 24455254, PMCID: PMC3876916, DOI: 10.1155/2013/409205.Peer-Reviewed Original ResearchBasic social cognitionSocial cognitionInterpersonal discomfortCognitive processing deficitsSocial cognitive impairmentsSocial cognitive measuresSocial cognitive interventionsCognitive interventionsCognitive measuresProcessing deficitsLower social performanceCognitionSocial interactionCore featuresEmpathyFactor structureCognitive impairmentLower scoresNeurocognitionHigher scoresSocial functionSocial performanceSpecific aspectsSchizophreniaPoor functional outcomeCorrection: Anatomical Abnormalities in Gray and White Matter of the Cortical Surface in Persons with Schizophrenia
Colibazzi T, Wexler B, Bansal R, Hao X, Liu J, Sanchez-Peña J, Corcoran C, Lieberman J, Peterson B. Correction: Anatomical Abnormalities in Gray and White Matter of the Cortical Surface in Persons with Schizophrenia. PLOS ONE 2013, 8: 10.1371/annotation/52ec57b7-e60d-40a8-b4fb-9bce5f9f9b40. PMCID: PMC4046779, DOI: 10.1371/annotation/52ec57b7-e60d-40a8-b4fb-9bce5f9f9b40.Peer-Reviewed Original ResearchAnatomical Abnormalities in Gray and White Matter of the Cortical Surface in Persons with Schizophrenia
Colibazzi T, Wexler BE, Bansal R, Hao X, Liu J, Sanchez-Peña J, Corcoran C, Lieberman JA, Peterson BS. Anatomical Abnormalities in Gray and White Matter of the Cortical Surface in Persons with Schizophrenia. PLOS ONE 2013, 8: e55783. PMID: 23418459, PMCID: PMC3572102, DOI: 10.1371/journal.pone.0055783.Peer-Reviewed Original ResearchConceptsCortical thicknessWhite matterCortical surface areaGray matterAnatomical abnormalitiesGM volumeWM abnormalitiesContribution of abnormalitiesRegional GM volumeHealthy controlsHigh burdenCingulate gyrusTotal cortical surface areaThinner cortexSuperior frontalAbnormalitiesLocation of abnormalitiesPerisylvian cortexSchizophreniaWM surfaceBrainCortical surfaceBrain anatomyPatientsSerial position task
2012
Empathy in electrodermal responsive and nonresponsive patients with schizophrenia
Ikezawa S, Corbera S, Liu J, Wexler BE. Empathy in electrodermal responsive and nonresponsive patients with schizophrenia. Schizophrenia Research 2012, 142: 71-76. PMID: 23058162, PMCID: PMC3502678, DOI: 10.1016/j.schres.2012.09.011.Peer-Reviewed Original ResearchMeSH KeywordsAdultAnalysis of VarianceAntipsychotic AgentsChlorpromazineElectroencephalographyEmpathyEvoked PotentialsFemaleGalvanic Skin ResponseHumansMaleMiddle AgedNeuropsychological TestsPersonality TestsPsychiatric Status Rating ScalesPsychotic DisordersRecognition, PsychologySchizophreniaSchizophrenic PsychologySocial BehaviorConceptsSkin conductance responsesEvent Related PotentialsSocial cognitionEmotion-evoking stimuliHealthy controlsPictures of peopleAssessment of symptomsERP responsesPersonal distressConductance responsesRelated potentialsNonresponsive patientsSchizophrenia patientsSCR frequencyCognitionPatientsSocial functionSocial integrationPotential markerSchizophreniaDistressPainPrognosisSubgroupsSymptomsA pilot and feasibility study of computer-based training for visual processing deficits in schizophrenia
Surti TS, Wexler BE. A pilot and feasibility study of computer-based training for visual processing deficits in schizophrenia. Schizophrenia Research 2012, 142: 248-249. PMID: 23043873, DOI: 10.1016/j.schres.2012.09.013.Peer-Reviewed Original Research
2011
Successful computer-based visual training specifically predicts visual memory enhancement over verbal memory improvement in schizophrenia
Surti TS, Corbera S, Bell MD, Wexler BE. Successful computer-based visual training specifically predicts visual memory enhancement over verbal memory improvement in schizophrenia. Schizophrenia Research 2011, 132: 131-134. PMID: 21795025, PMCID: PMC3195942, DOI: 10.1016/j.schres.2011.06.031.Peer-Reviewed Original ResearchConceptsCognitive remediationCognitive control trainingEarly visual processingVerbal memory improvementVerbal learningAuditory learningVisual learningCognitive gainsVisual processingMemory enhancementVisual trainingCognitive outcomesMemory improvementControl trainingNeuropsychological testingVisual informationMultiple modalitiesTraining exercisesLearningInformation manipulationTrainingSchizophreniaGeneralizesTaskParticipants
2010
Predictors of Participation in Community Outpatient Psychosocial Rehabilitation in Schizophrenia
Kurtz MM, Rose J, Wexler BE. Predictors of Participation in Community Outpatient Psychosocial Rehabilitation in Schizophrenia. Community Mental Health Journal 2010, 47: 622-627. PMID: 20676766, PMCID: PMC3046324, DOI: 10.1007/s10597-010-9343-z.Peer-Reviewed Original ResearchConceptsLower verbal fluency scoresVerbal fluency scoresSchizoaffective disorderPsychosocial rehabilitation programsVerbal learningVerbal abilityNeurocognitive factorsVisual vigilanceVerbal fluencyFluency scoresNeurocognitive assessmentDSM-IV schizophreniaSymptom measuresPsychosocial rehabilitationPredictors of participationDemographic variablesSchizophreniaFinal multivariate modelRehabilitation programGreater likelihoodRace/ethnicityStudy entryFluencyDisordersMeasuresSocial 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
Predictors of change in life skills in schizophrenia after cognitive remediation
Kurtz MM, Seltzer JC, Fujimoto M, Shagan DS, Wexler BE. Predictors of change in life skills in schizophrenia after cognitive remediation. Schizophrenia Research 2008, 107: 267-274. PMID: 19006657, PMCID: PMC3399665, DOI: 10.1016/j.schres.2008.10.014.Peer-Reviewed Original ResearchMeSH KeywordsActivities of Daily LivingAdultAttentionCognition DisordersComprehensionComputer-Assisted InstructionFemaleHumansInhibition, PsychologicalMemory, Short-TermMiddle AgedNeuropsychological TestsProblem SolvingPrognosisPsychiatric Status Rating ScalesPsychometricsPsychomotor PerformanceRemedial TeachingSchizophreniaSchizophrenic PsychologySocializationSoftwareVerbal LearningYoung AdultConceptsCognitive remediationAuditory attentionPerformance-based measuresRemediation interventionsComputer-assisted cognitive remediationLife skillsCognitive remediation interventionsSustained auditory attentionEveryday life skillsTreatment-related improvementTreatment process variablesOutpatient rehabilitation treatmentPredictors of changeMeasures of symptomsVerbal abilityVerbal learningTreatment outcome measuresNeurocognitive variablesNeurocognitive functionMemoryNegative symptomsSchizoaffective disorderPredictor studiesCurrent studySchizophreniaNeurocognitive 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 programsTrainingSymptoms versus neurocognition as predictors of change in life skills in schizophrenia after outpatient rehabilitation
Kurtz MM, Wexler BE, Fujimoto M, Shagan DS, Seltzer JC. Symptoms versus neurocognition as predictors of change in life skills in schizophrenia after outpatient rehabilitation. Schizophrenia Research 2008, 102: 303-311. PMID: 18495433, PMCID: PMC2519168, DOI: 10.1016/j.schres.2008.03.023.Peer-Reviewed Original ResearchMeSH KeywordsActivities of Daily LivingAdultAmbulatory CareCognition DisordersCognitive Behavioral TherapyFemaleHumansLongitudinal StudiesMaleMiddle AgedNeuropsychological TestsPsychiatric Status Rating ScalesPsychotic DisordersSchizophreniaSchizophrenic PsychologyTherapy, Computer-AssistedVerbal LearningConceptsEveryday life skillsPerformance-based measuresLife skillsVerbal learningVerbal abilityCognitive rehabilitation interventionLongitudinal studyPredictors of changeMeasures of symptomsCognitive interventionsVisual vigilanceSustained vigilanceProcessing speedNeurocognitive deficitsNeurocognitive functionNegative symptomsBody of literatureNeurocognitionSkillsRehabilitation interventionsSchizoaffective disorderOutpatient rehabilitationCurrent studySchizophreniaRehabilitation strategies