2017
Pupillometer-Based Neurofeedback Cognitive Training to Improve Processing Speed and Social Functioning in Individuals at Clinical High Risk for Psychosis
Choi J, Corcoran CM, Fiszdon JM, Stevens M, Javitt DC, Deasy M, Haber LC, Dewberry MJ, Pearlson GD. Pupillometer-Based Neurofeedback Cognitive Training to Improve Processing Speed and Social Functioning in Individuals at Clinical High Risk for Psychosis. Psychiatric Rehabilitation Journal 2017, 40: 33-42. PMID: 27560455, PMCID: PMC5326611, DOI: 10.1037/prj0000217.Peer-Reviewed Original ResearchConceptsProcessing speed trainingClinical high riskOverall social adjustmentProcessing speedSocial adjustmentInformation processing dysfunctionVisual scanning efficiencyTablet-based programCognitive trainingSocial avoidanceProcessing dysfunctionPS deficitsSocial situationsCHR participantsPST groupInformation processingPost trainingSocial behaviorTraining formatSpeed trainingSocial functionBehavioral deficitsRole functioningSocial morbidityEntire sample
2015
Neuroimaging data sharing on the neuroinformatics database platform
Book GA, Stevens MC, Assaf M, Glahn DC, Pearlson GD. Neuroimaging data sharing on the neuroinformatics database platform. NeuroImage 2015, 124: 1089-1092. PMID: 25888923, PMCID: PMC4608854, DOI: 10.1016/j.neuroimage.2015.04.022.Peer-Reviewed Original Research
2013
Resting State Electroencephalogram Oscillatory Abnormalities in Schizophrenia and Psychotic Bipolar Patients and Their Relatives from the Bipolar and Schizophrenia Network on Intermediate Phenotypes Study
Narayanan B, O’Neil K, Berwise C, Stevens MC, Calhoun VD, Clementz BA, Tamminga CA, Sweeney JA, Keshavan MS, Pearlson GD. Resting State Electroencephalogram Oscillatory Abnormalities in Schizophrenia and Psychotic Bipolar Patients and Their Relatives from the Bipolar and Schizophrenia Network on Intermediate Phenotypes Study. Biological Psychiatry 2013, 76: 456-465. PMID: 24439302, PMCID: PMC5045030, DOI: 10.1016/j.biopsych.2013.12.008.Peer-Reviewed Original ResearchConceptsFirst-degree relativesSlow beta activityFast alpha activitySZ probandsAlpha activityHealthy control subjectsBeta activityRelative risk estimatesFrontal delta activityEEG spectral activityModerate relative riskPsychotic bipolar patientsLow-frequency activityPsychotic bipolar probandsGroup independent component analysisControl subjectsRelative riskPost-hoc pair-wise comparisonsBipolar patientsGenetic predispositionIntermediate Phenotypes (B-SNIP) studyOscillatory abnormalitiesAnalysis of covarianceUnique endophenotypesBipolar disorderDiffusion Tensor Imaging White Matter Endophenotypes in Patients With Schizophrenia or Psychotic Bipolar Disorder and Their Relatives
Skudlarski P, Schretlen DJ, Thaker GK, Stevens MC, Keshavan MS, Sweeney JA, Tamminga CA, Clementz BA, O’Neil K, Pearlson GD. Diffusion Tensor Imaging White Matter Endophenotypes in Patients With Schizophrenia or Psychotic Bipolar Disorder and Their Relatives. American Journal Of Psychiatry 2013, 170: 886-898. PMID: 23771210, DOI: 10.1176/appi.ajp.2013.12111448.Peer-Reviewed Original ResearchMeSH KeywordsAge FactorsAnisotropyBipolar DisorderBrainDiffusion Tensor ImagingDominance, CerebralEndophenotypesGenetic Predisposition to DiseaseHumansImage Interpretation, Computer-AssistedLeukoencephalopathiesNerve NetPhenotypePsychiatric Status Rating ScalesReference ValuesSchizophreniaSchizophrenic PsychologyStatistics as TopicConceptsPsychotic bipolar disorderBipolar disorderWhite matter integrityFractional anisotropyComparison subjectsFractional anisotropy decreasesFirst-degree relativesHealthy comparison subjectsLower white matter integrityDiffusion tensorMultiple white matter regionsLower fractional anisotropyWhite matter regionsBipolar-Schizophrenia NetworkHealthy subjectsBipolar relativesProband groupsYoung subjectsBrain regionsDisease specificityFractional anisotropy measuresUnaffected relativesMatter regionsBrain connectivitySchizophreniaIs Aberrant Functional Connectivity A Psychosis Endophenotype? A Resting State Functional Magnetic Resonance Imaging Study
Khadka S, Meda SA, Stevens MC, Glahn DC, Calhoun VD, Sweeney JA, Tamminga CA, Keshavan MS, O’Neil K, Schretlen D, Pearlson GD. Is Aberrant Functional Connectivity A Psychosis Endophenotype? A Resting State Functional Magnetic Resonance Imaging Study. Biological Psychiatry 2013, 74: 458-466. PMID: 23746539, PMCID: PMC3752322, DOI: 10.1016/j.biopsych.2013.04.024.Peer-Reviewed Original ResearchConceptsPsychotic bipolar probandsNegative Syndrome Scale (PANSS) negative scoresState functional magnetic resonance imaging studyFunctional connectivityState functional magnetic resonanceBipolar disorder shareBrain connectivity abnormalitiesPosterior default mode networkSchizophrenia probandsMagnetic resonance imaging studyRespective first-degree relativesAberrant functional connectivityBipolar probandsFirst-degree relativesGroup differencesPsychosis endophenotypesNegative Syndrome ScaleResonance imaging studyFunctional magnetic resonance imaging studyDefault mode networkFunctional magnetic resonanceFunctional connectivity measures
2012
Neural Activations During Auditory Oddball Processing Discriminating Schizophrenia and Psychotic Bipolar Disorder
Ethridge LE, Hamm JP, Shapiro JR, Summerfelt AT, Keedy SK, Stevens MC, Pearlson G, Tamminga CA, Boutros NN, Sweeney JA, Keshavan MS, Thaker G, Clementz BA. Neural Activations During Auditory Oddball Processing Discriminating Schizophrenia and Psychotic Bipolar Disorder. Biological Psychiatry 2012, 72: 766-774. PMID: 22572033, PMCID: PMC3465513, DOI: 10.1016/j.biopsych.2012.03.034.Peer-Reviewed Original ResearchConceptsAuditory oddball taskBipolar disorderNeural responsesBest differentiated groupsSingular time pointsDifferent psychotic disordersAuditory processing abnormalitiesOddball taskPsychotic bipolar disorderP300 event-related potentialNonpsychotic patientsHealthy subjectsPsychotic disordersPsychosis groupAuditory oddball responsePsychotic groupSchizophreniaFrequent combinationTime pointsBrain activationNeural activationBeta activityGroup differencesBrain responsesDisordersDifferences in Resting-State Functional Magnetic Resonance Imaging Functional Network Connectivity Between Schizophrenia and Psychotic Bipolar Probands and Their Unaffected First-Degree Relatives
Meda SA, Gill A, Stevens MC, Lorenzoni RP, Glahn DC, Calhoun VD, Sweeney JA, Tamminga CA, Keshavan MS, Thaker G, Pearlson GD. Differences in Resting-State Functional Magnetic Resonance Imaging Functional Network Connectivity Between Schizophrenia and Psychotic Bipolar Probands and Their Unaffected First-Degree Relatives. Biological Psychiatry 2012, 71: 881-889. PMID: 22401986, PMCID: PMC3968680, DOI: 10.1016/j.biopsych.2012.01.025.Peer-Reviewed Original ResearchConceptsUnaffected first-degree relativesFirst-degree relativesPsychotic bipolar probandsBipolar probandsNegative Syndrome Scale (PANSS) scoresBipolar disorder shareFunctional brain dysconnectivityIndividual resting-state networksFunctional network connectivity analysisPANSS negative scoresResting-state networksFunctional network connectivityFunctional magnetic resonanceControl subjectsBrain dysconnectivityDisorder sharesHealthy subjectsBipolar relativesParalimbic circuitsScale scoreConnectivity differencesClinical relationshipSchizophreniaAbnormal pairsProbands
2010
Genetic Associations of Brain Structural Networks in Schizophrenia: A Preliminary Study
Jagannathan K, Calhoun VD, Gelernter J, Stevens MC, Liu J, Bolognani F, Windemuth A, Ruaño G, Assaf M, Pearlson GD. Genetic Associations of Brain Structural Networks in Schizophrenia: A Preliminary Study. Biological Psychiatry 2010, 68: 657-666. PMID: 20691427, PMCID: PMC2990476, DOI: 10.1016/j.biopsych.2010.06.002.Peer-Reviewed Original ResearchConceptsSpecific structural brain abnormalitiesMagnetic resonance imaging (MRI) scansSmall sample sizeHealthy control subjectsStructural brain abnormalitiesStructural magnetic resonance imaging (MRI) scansGray matter deficitsResonance imaging scansCortical gray matterNormal central nervous system developmentRisk genesCentral nervous system developmentBrain structural networksControl subjectsImaging scansBrain abnormalitiesNervous system developmentIllness markersSchizophrenia pathophysiologySchizophrenia risk genesGenetic componentTemporal lobeBrain areasEuropean-American subjectsSchizophrenia patientsBrain Connectivity Is Not Only Lower but Different in Schizophrenia: A Combined Anatomical and Functional Approach
Skudlarski P, Jagannathan K, Anderson K, Stevens MC, Calhoun VD, Skudlarska BA, Pearlson G. Brain Connectivity Is Not Only Lower but Different in Schizophrenia: A Combined Anatomical and Functional Approach. Biological Psychiatry 2010, 68: 61-69. PMID: 20497901, PMCID: PMC2900394, DOI: 10.1016/j.biopsych.2010.03.035.Peer-Reviewed Original ResearchConceptsBrain connectivityFunctional connectivitySchizophrenia patientsAnatomical connectivityState functional magnetic resonance imagingFunctional connectivity alterationsHealthy control subjectsClinical symptom severityGroup differencesAnatomical connectivity mapsFunctional magnetic resonance imagingMagnetic resonance imagingPosterior cingulate cortexGlobal connectivity analysisClinical symptomsWhite matter anatomyControl subjectsConnectivity alterationsCingulate cortexPatientsResonance imagingBrain regionsSymptom severityDMN componentsTask-positive network
2009
A pilot multivariate parallel ICA study to investigate differential linkage between neural networks and genetic profiles in schizophrenia
Meda SA, Jagannathan K, Gelernter J, Calhoun VD, Liu J, Stevens MC, Pearlson GD. A pilot multivariate parallel ICA study to investigate differential linkage between neural networks and genetic profiles in schizophrenia. NeuroImage 2009, 53: 1007-1015. PMID: 19944766, PMCID: PMC3968678, DOI: 10.1016/j.neuroimage.2009.11.052.Peer-Reviewed Original ResearchMeSH KeywordsAcoustic StimulationBrain MappingBrain-Derived Neurotrophic FactorDopamine Plasma Membrane Transport ProteinsEndophenotypesFemaleGenetic Predisposition to DiseaseGenotypeHumansImage Interpretation, Computer-AssistedMagnetic Resonance ImagingMaleNeural PathwaysPilot ProjectsPolymorphism, Single NucleotideSchizophreniaSerotonin Plasma Membrane Transport ProteinsConceptsDopamine transporterBrain functionNeurotropic factorAuditory oddball taskSchizophrenia patientsSingle nucleotide polymorphismsMultiple risk genesRisk genesOddball taskRelated brain functionsHealthy controlsSchizophrenia risk genesAbnormal activationGenomic factorsTemporal gyrusPatientsTask-relevant regionsSchizophreniaSignificant differencesAttention/Multiple single nucleotide polymorphismsGenetic profilePsychiatric neuroimagingBrainGenotype-phenotype relationshipsEvidence for Anomalous Network Connectivity during Working Memory Encoding in Schizophrenia: An ICA Based Analysis
Meda SA, Stevens MC, Folley BS, Calhoun VD, Pearlson GD. Evidence for Anomalous Network Connectivity during Working Memory Encoding in Schizophrenia: An ICA Based Analysis. PLOS ONE 2009, 4: e7911. PMID: 19936244, PMCID: PMC2775682, DOI: 10.1371/journal.pone.0007911.Peer-Reviewed Original ResearchConceptsTask accuracyFunctional connectivityPrefrontal cortexNetwork engagementLeft fronto-parietal networkRight dorsolateral prefrontal cortexMemory fMRI paradigmWorking Memory EncodingFronto-parietal networkVentrolateral prefrontal cortexNumerous neuroimaging studiesDorsolateral prefrontal cortexIndependent component analysisAbnormal regional brain activityDefault mode networkBrain network integrationDysfunctional brain regionsPrevious schizophrenia studiesRegional brain activityHippocampus/parahippocampusMemory encodingFMRI taskMemory cognitionMemory performanceFMRI paradigmInvestigation of relationships between fMRI brain networks in the spectral domain using ICA and Granger causality reveals distinct differences between schizophrenia patients and healthy controls
Demirci O, Stevens MC, Andreasen NC, Michael A, Liu J, White T, Pearlson GD, Clark VP, Calhoun VD. Investigation of relationships between fMRI brain networks in the spectral domain using ICA and Granger causality reveals distinct differences between schizophrenia patients and healthy controls. NeuroImage 2009, 46: 419-431. PMID: 19245841, PMCID: PMC2713821, DOI: 10.1016/j.neuroimage.2009.02.014.Peer-Reviewed Original ResearchConceptsFunctional network connectivitySternberg Item Recognition ParadigmTemporal lobe activationBrain networksBrain activation networksCerebral sitesHealthy controlsAuditory oddball taskPsychiatric disordersSchizophrenia patientsControl groupAOD taskCausal relationshipFMRI brain networksTime courseOddball task
2007
A method for functional network connectivity among spatially independent resting-state components in schizophrenia
Jafri MJ, Pearlson GD, Stevens M, Calhoun VD. A method for functional network connectivity among spatially independent resting-state components in schizophrenia. NeuroImage 2007, 39: 1666-1681. PMID: 18082428, PMCID: PMC3164840, DOI: 10.1016/j.neuroimage.2007.11.001.Peer-Reviewed Original ResearchConceptsFunctional network connectivityFunctional connectivityTime courseICA time coursesHealthy controlsMagnetic resonance imaging dataHealthy individualsPatientsBrain disordersBrain regionsState fMRI dataCortical processingSchizophreniaFunctional magnetic resonance imaging (fMRI) dataSpatial independent component analysisSignificant differencesBrain networksComponent time coursesTemporal relationshipCoherent brain regionsBrainFMRI dataCourseImaging dataSeed voxels
2005
Abnormal hemodynamics in schizophrenia during an auditory oddball task
Kiehl KA, Stevens MC, Celone K, Kurtz M, Krystal JH. Abnormal hemodynamics in schizophrenia during an auditory oddball task. Biological Psychiatry 2005, 57: 1029-1040. PMID: 15860344, PMCID: PMC2771438, DOI: 10.1016/j.biopsych.2005.01.035.Peer-Reviewed Original ResearchConceptsAuditory oddball taskHealthy participantsOddball taskThree-stimulus auditory oddball taskDiffuse brain abnormalitiesHealthy control subjectsNovelty processingWidespread pathologic processCerebral areasControl subjectsBrain abnormalitiesMagnetic resonance imaging dataAbnormal hemodynamicsPathologic processesSchizophrenia patientsParietal cortexCognitive functionHeterogeneous disorderCerebellar circuitsSchizophreniaAbnormalitiesSignificant activationSubcortical systemsFunctional magnetic resonance imaging (fMRI) dataPatients