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
2011
Heterogeneity of Auditory Verbal Working Memory in Schizophrenia
Bruder GE, Alschuler DM, Kroppmann CJ, Fekri S, Gil RB, Jarskog LF, Harkavy-Friedman JM, Goetz R, Kayser J, Wexler BE. Heterogeneity of Auditory Verbal Working Memory in Schizophrenia. Journal Of Psychopathology And Clinical Science 2011, 120: 88-97. PMID: 21319926, PMCID: PMC3061570, DOI: 10.1037/a0021661.Peer-Reviewed Original ResearchConceptsVerbal WM deficitsVerbal WMSustained attentionWM deficitsLanguage-related cortical regionsWechsler Memory Scale-RevisedAuditory hallucinationsAuditory-verbal WMVerbal Working MemoryVerbal memory deficitsGeneralized cognitive deficitHeterogeneity of schizophreniaExplicit memoryWorking memoryNonverbal memoryVisual memoryTone discriminationNonverbal testsAttentional dysfunctionAuditory perceptionSpecific deficitsCognitive deficitsMemory deficitsDiscrimination performanceMarked deficit
2004
Verbal memory in schizophrenia: additional evidence of subtypes having different cognitive deficits
Bruder GE, Wexler BE, Sage MM, Gil RB, Gorman JM. Verbal memory in schizophrenia: additional evidence of subtypes having different cognitive deficits. Schizophrenia Research 2004, 68: 137-147. PMID: 15099598, DOI: 10.1016/s0920-9964(03)00156-7.Peer-Reviewed Original ResearchMeSH KeywordsAdultAttentionAuditory PerceptionCerebral CortexCognition DisordersDichotic Listening TestsDominance, CerebralFemaleFunctional LateralityHumansMaleMemory DisordersMental RecallNeuropsychological TestsPaired-Associate LearningPitch DiscriminationPsychiatric Status Rating ScalesSchizophreniaSchizophrenic PsychologyVerbal LearningWechsler ScalesConceptsVerbal memory deficitsMemory deficitsVerbal memoryWechsler Memory Scale-RevisedNonverbal cognitive functionsDifferent cognitive deficitsSerial position effectsVerbal materialVisual memoryNonverbal testsAuditory perceptionGeneralized deficitSelective deficitDichotic wordsHemispheric dominanceCognitive deficitsCognitive functionMemoryMedication statusHealthy controlsDeficitsOverall poor performancePosition effectsPoor performancePosition test
2003
Cognitive remediation of working memory deficits: durability of training effects in severely impaired and less severely impaired schizophrenia
Bell M, Bryson G, Wexler BE. Cognitive remediation of working memory deficits: durability of training effects in severely impaired and less severely impaired schizophrenia. Acta Psychiatrica Scandinavica 2003, 108: 101-109. PMID: 12823166, DOI: 10.1034/j.1600-0447.2003.00090.x.Peer-Reviewed Original ResearchConceptsNeurocognitive enhancement therapyWork therapyCognitive remediationTraining effectsSocial information processingCognitive training exercisesExecutive functionMemory performanceEnhancement therapyMemory deficitsInformation processingSeverity of impairmentDuration of trainingGreater improvementSchizoaffective disorderMemoryParticipantsTraining exercisesMost participantsImpairment severitySchizophreniaTrainingDuration of effectSeverity groupsDeficits
2002
Deficits in language-mediated mental operations in patients with schizophrenia
Wexler BE, Donegan N, Stevens AA, Jacob SA. Deficits in language-mediated mental operations in patients with schizophrenia. Schizophrenia Research 2002, 53: 171-179. PMID: 11738530, DOI: 10.1016/s0920-9964(01)00194-3.Peer-Reviewed Original ResearchConceptsMemory taskMemory deficitsMemory testFamiliar soundsNon-verbal memory testsEarly perceptual processingSerial position taskWord memory taskVerbal memory processesVerbal memory taskNon-verbal memoryVerbal memory testsPerceptual processingAttentional competenceVerbal materialVerbal stimuliStimulus itemsMemory processesMental operationsTask difficultyVisual stimuliImpaired performancePosition taskSensory processingAuditory tests
2000
Preliminary Evidence of Improved Verbal Working Memory Performance and Normalization of Task-Related Frontal Lobe Activation in Schizophrenia Following Cognitive Exercises
Wexler BE, Anderson M, Fulbright RK, Gore JC. Preliminary Evidence of Improved Verbal Working Memory Performance and Normalization of Task-Related Frontal Lobe Activation in Schizophrenia Following Cognitive Exercises. American Journal Of Psychiatry 2000, 157: 1694-1697. PMID: 11007730, DOI: 10.1176/appi.ajp.157.10.1694.Peer-Reviewed Original ResearchConceptsLeft inferior frontal cortexTask-related activationVerbal memory taskInferior frontal cortexMemory performanceMemory taskCognitive exercisesMemory exercisesNonverbal memory performanceWorking Memory PerformanceVerbal memory deficitsVerbal memory dysfunctionFrontal lobe activationRegional brain activationFrontal cortexSame brain regionsBrain activationTraining periodMemory deficitsMemory dysfunctionBrain regionsPreliminary evidenceBehavioral aspectsTaskSchizophrenia
1998
Word and Tone Working Memory Deficits in Schizophrenia
Wexler BE, Stevens AA, Bowers AA, Sernyak MJ, Goldman-Rakic PS. Word and Tone Working Memory Deficits in Schizophrenia. JAMA Psychiatry 1998, 55: 1093-1096. PMID: 9862552, DOI: 10.1001/archpsyc.55.12.1093.Peer-Reviewed Original ResearchConceptsMemory testNonverbal testsVerbal testsMemory deficitsSerial position taskTests of perceptionAuditory memory testVerbal memory deficitsWorking Memory DeficitsImmediate recall taskSignificant performance deficitsRecall taskVerbal memoryPerceptual functionsSustained attentionDiscrimination taskPitch discriminationSelective deficitNormal motivationPerformance deficitsPosition taskMemory testingCognitive functionMedicated outpatientsInformation processingCortical Dysfunction in Schizophrenia During Auditory Word and Tone Working Memory Demonstrated by Functional Magnetic Resonance Imaging
Stevens AA, Goldman-Rakic PS, Gore JC, Fulbright RK, Wexler BE. Cortical Dysfunction in Schizophrenia During Auditory Word and Tone Working Memory Demonstrated by Functional Magnetic Resonance Imaging. JAMA Psychiatry 1998, 55: 1097-1103. PMID: 9862553, DOI: 10.1001/archpsyc.55.12.1097.Peer-Reviewed Original ResearchConceptsSerial position taskFunctional magnetic resonance imagingInferior frontal gyrusPosition taskMemory deficitsFrontal gyrusLeft inferior frontal gyrusAnterior temporal lobe areasTask-specific activationFunctional magnetic resonanceSpeech-related areasCortical hemodynamic responsesTemporal lobe areasSevere cognitive deficitsAuditory wordsWorking memoryVerbal learningNeural basisSuch deficitsCognitive deficitsCognitive functionParietal lobeLobe areasMagnetic resonance imagingCognitive dysfunction