2023
Widespread, depth‐dependent cortical microstructure alterations in pediatric focal epilepsy
Casella C, Vecchiato K, Cromb D, Guo Y, Winkler A, Hughes E, Dillon L, Green E, Colford K, Egloff A, Siddiqui A, Price A, Grande L, Wood T, Malik S, Teixeira R, Carmichael D, O'Muircheartaigh J. Widespread, depth‐dependent cortical microstructure alterations in pediatric focal epilepsy. Epilepsia 2023, 65: 739-752. PMID: 38088235, PMCID: PMC7616339, DOI: 10.1111/epi.17861.Peer-Reviewed Original ResearchDrug-resistant focal epilepsyFocal epilepsyMagnetic resonance imagingTreatment-related side effectsMRI-positive patientsMRI-negative patientsDisease severity measuresWidespread cortical areasPediatric focal epilepsyQuantitative magnetic resonance imagingPeriod of onsetTissue microstructural changesRadiological abnormalitiesUnderlying pathophysiologyHealthy controlsIndividual patientsCortical areasDisease processSide effectsPatientsFocal pathologyEpilepsyNeurobiological alterationsDisease severityResonance imagingA systematic review and meta-analysis of resting-state fMRI in anxiety disorders: Need for data sharing to move the field forward
Zugman A, Jett L, Antonacci C, Winkler A, Pine D. A systematic review and meta-analysis of resting-state fMRI in anxiety disorders: Need for data sharing to move the field forward. Journal Of Anxiety Disorders 2023, 99: 102773. PMID: 37741177, PMCID: PMC10753861, DOI: 10.1016/j.janxdis.2023.102773.Peer-Reviewed Original ResearchConceptsAnxiety disordersSystematic reviewPrevalent psychiatric disordersStrict inclusion criteriaAnterior cingulate cortexMedial frontal gyrusActivation likelihood estimation (ALE) analysisResting-state fMRITime of scanningFunctional imaging modalitiesPatient groupHealthy groupInclusion criteriaHealthy volunteersPsychiatric disordersCingulate cortexStudy numbersRs-fMRIFrontal gyrusDisordersImaging modalitiesPatientsBrain activityFamily-wise errorGyrus
2021
Patients with chronic pain exhibit individually unique cortical signatures of pain encoding
Mayr A, Jahn P, Stankewitz A, Deak B, Winkler A, Witkovsky V, Eren O, Straube A, Schulz E. Patients with chronic pain exhibit individually unique cortical signatures of pain encoding. Human Brain Mapping 2021, 43: 1676-1693. PMID: 34921467, PMCID: PMC8886665, DOI: 10.1002/hbm.25750.Peer-Reviewed Original ResearchConceptsChronic back painEndogenous painAnterior insular cortexBack painChronic painInsular cortexCortical signaturesChronic pain exhibitChronic migraine patientsChange of painIntensity of painFunctional MRI sessionsUnique cortical signaturesChronic migrainePain intensityMigraine patientsPainMultifaceted diseaseClinical observationsPatientsLinear mixed effects modelsFrontal operculumMRI sessionsMixed effects modelsCortical processes
2019
Anticipatory Threat Responding: Associations With Anxiety, Development, and Brain Structure
Abend R, Gold A, Britton J, Michalska K, Shechner T, Sachs J, Winkler A, Leibenluft E, Averbeck B, Pine D. Anticipatory Threat Responding: Associations With Anxiety, Development, and Brain Structure. Biological Psychiatry 2019, 87: 916-925. PMID: 31955915, PMCID: PMC7211142, DOI: 10.1016/j.biopsych.2019.11.006.Peer-Reviewed Original ResearchConceptsSkin conductance responsesConductance responsesBrain structuresThreat conditioningPathological anxietyComparison subjectsPsychophysiological responsesLarger patient samplesPrefrontal cortical thicknessHealthy comparison subjectsStructural magnetic resonance imaging (MRI) dataThreat stimuliAnticipatory respondingExtinction paradigmStimulus typeMagnetic resonance imaging dataWide age rangeCortical thicknessPatientsNeurodevelopmental changesAnticipatory responsesTranslational advancesStructural brainAdult populationPatient samplesSchizophrenia Exhibits Bi-directional Brain-Wide Alterations in Cortico-Striato-Cerebellar Circuits
Ji JL, Diehl C, Schleifer C, Tamminga CA, Keshavan MS, Sweeney JA, Clementz BA, Hill SK, Pearlson G, Yang G, Creatura G, Krystal JH, Repovs G, Murray J, Winkler A, Anticevic A. Schizophrenia Exhibits Bi-directional Brain-Wide Alterations in Cortico-Striato-Cerebellar Circuits. Cerebral Cortex 2019, 29: 4463-4487. PMID: 31157363, PMCID: PMC6917525, DOI: 10.1093/cercor/bhy306.Peer-Reviewed Original ResearchConceptsBrain-wide alterationsResting-state functional magnetic resonanceSensory-motor cortexFunctional magnetic resonanceNeural dysconnectivityPolysynaptic connectionsCortico-striatoFunctional disturbancesChronic patientsAssociation cortexFocal disruptionNeural effectsCerebellar circuitsPatientsDysconnectivityStriatal componentsSchizophreniaCortexSpecific alterationsHallmark featureCognitive performanceAlterationsFunctional pathwaysQuestion accountsMagnetic resonance
2016
Heterochronicity of white matter development and aging explains regional patient control differences in schizophrenia
Kochunov P, Ganjgahi H, Winkler A, Kelly S, Shukla D, Du X, Jahanshad N, Rowland L, Sampath H, Patel B, O'Donnell P, Xie Z, Paciga S, Schubert C, Chen J, Zhang G, Thompson P, Nichols T, Hong L. Heterochronicity of white matter development and aging explains regional patient control differences in schizophrenia. Human Brain Mapping 2016, 37: 4673-4688. PMID: 27477775, PMCID: PMC5118078, DOI: 10.1002/hbm.23336.Peer-Reviewed Original ResearchConceptsAge-related declineWhite matterSchizophrenia patientsFractional anisotropyFA valuesDiagnosis interactionFaster age-related declinePathophysiology of schizophreniaHum Brain MappEffect of diagnosisLower fractional anisotropyPatient-control differencesT Siemens MRI scannerBrain white matterClinical burdenRegional FA valuesPatientsAbnormal rateBrain connectivityTract developmentAdolescent maturationSpecific tractsRegional reductionDiagnosisSchizophrenia
2015
Perfusion shift from white to gray matter may account for processing speed deficits in schizophrenia
Wright S, Hong L, Winkler A, Chiappelli J, Nugent K, Muellerklein F, Du X, Rowland L, Wang D, Kochunov P. Perfusion shift from white to gray matter may account for processing speed deficits in schizophrenia. Human Brain Mapping 2015, 36: 3793-3804. PMID: 26108347, PMCID: PMC4714540, DOI: 10.1002/hbm.22878.Peer-Reviewed Original ResearchConceptsWM integrityDiffusion tensor imagingArterial spin labelingPatient-control differencesPS deficitsReduced WM integrityPerfusion shiftCerebral information processingLower WM integrityCerebral WMNeurophysiological alterationsInformation processing speedSchizophrenia patientsGray matterCognitive deficitsTensor imagingBlood perfusionSchizophreniaDeficitsFurther examinationSpin labelingProcessing speedPatientsCohortPerfusion
2012
Testing the Hypothesis of Accelerated Cerebral White Matter Aging in Schizophrenia and Major Depression
Kochunov P, Glahn DC, Rowland LM, Olvera RL, Winkler A, Yang YH, Sampath H, Carpenter WT, Duggirala R, Curran J, Blangero J, Hong LE. Testing the Hypothesis of Accelerated Cerebral White Matter Aging in Schizophrenia and Major Depression. Biological Psychiatry 2012, 73: 482-491. PMID: 23200529, PMCID: PMC3645491, DOI: 10.1016/j.biopsych.2012.10.002.Peer-Reviewed Original ResearchConceptsMajor depressive disorderMDD cohortAge-related declineFractional anisotropyWM tractsFA valuesAge interactionMain outcome measuresCerebral white matterPathophysiology of schizophreniaAverage fractional anisotropyWhite matter integrityCerebral WMMajor WM tractsMDD patientsDepressive disorderMajor depressionOutcome measuresFunctional declineSCZ patientsWhite matterCohortPeak myelinationPatientsWM FA values