2019
Accelerated estimation and permutation inference for ACE modeling
Chen X, Formisano E, Blokland G, Strike L, McMahon K, de Zubicaray G, Thompson P, Wright M, Winkler A, Ge T, Nichols T. Accelerated estimation and permutation inference for ACE modeling. Human Brain Mapping 2019, 40: 3488-3507. PMID: 31037793, PMCID: PMC6680147, DOI: 10.1002/hbm.24611.Peer-Reviewed Original ResearchConceptsPermutation inferenceIterative optimizationVariance component modelComputation timeComparable biasAccelerated estimationLinear modelSquared errorCluster sizeSpatial statisticsLinear regression modelsFalse positive riskInferenceHeritability estimationEstimationComponent modelModelWealth of toolsMemory datasetsOptimizationSimple methodSmall numberStatisticsACE modelPermutations
2017
Anxiety modulates the relation between attention-deficit/hyperactivity disorder severity and working memory-related brain activity
van der Meer D, Hoekstra P, van Rooij D, Winkler A, van Ewijk H, Heslenfeld D, Oosterlaan J, Faraone S, Franke B, Buitelaar J, Hartman C. Anxiety modulates the relation between attention-deficit/hyperactivity disorder severity and working memory-related brain activity. The World Journal Of Biological Psychiatry 2017, 19: 450-460. PMID: 28635543, PMCID: PMC5581282, DOI: 10.1080/15622975.2017.1287952.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAnxietyAnxiety DisordersAttention Deficit Disorder with HyperactivityCerebellumChildCognitive DysfunctionCohort StudiesComorbidityCorpus StriatumFemaleFunctional NeuroimagingHumansMagnetic Resonance ImagingMaleMemory, Short-TermSeverity of Illness IndexThalamusYoung AdultConceptsAttention-deficit/hyperactivity disorderCo-occurring anxietyADHD severityNeural activityMemory taskAttention-deficit/hyperactivity disorder severityMemory-related brain activityPresence of ADHDVisuospatial Working Memory TaskWorking Memory TaskLevel of anxietyVSWM tasksMemory loadHyperactivity disorderTask accuracyPrevious theorisingAnxiety severityBrain activityNeurobiological heterogeneityDisorder severityAnxietyWorse performanceInformation gatingYoung adultsNeural pathways
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
2011
Genetic influence on the working memory circuitry: Behavior, structure, function and extensions to illness
Karlsgodt KH, Bachman P, Winkler AM, Bearden CE, Glahn DC. Genetic influence on the working memory circuitry: Behavior, structure, function and extensions to illness. Behavioural Brain Research 2011, 225: 610-622. PMID: 21878355, PMCID: PMC3545474, DOI: 10.1016/j.bbr.2011.08.016.Peer-Reviewed Original ResearchImpact of DISC1 variation on neuroanatomical and neurocognitive phenotypes
Carless MA, Glahn DC, Johnson MP, Curran JE, Bozaoglu K, Dyer TD, Winkler AM, Cole SA, Almasy L, MacCluer JW, Duggirala R, Moses EK, Göring HH, Blangero J. Impact of DISC1 variation on neuroanatomical and neurocognitive phenotypes. Molecular Psychiatry 2011, 16: 1096-1104. PMID: 21483430, PMCID: PMC3135724, DOI: 10.1038/mp.2011.37.Peer-Reviewed Original ResearchCerebral CortexCognitionDepressionGene Expression ProfilingGene Expression RegulationGenome-Wide Association StudyGenotypeHumansInterview, PsychologicalLymphocytesMemory, Short-TermMexican AmericansMicrosatellite RepeatsNerve Tissue ProteinsNeuropsychological TestsPanic DisorderPhenotypePolymorphism, GeneticPolymorphism, Single NucleotideRNA, MessengerSampling StudiesTexasTranscription, Genetic
2010
A Multimodal Assessment of the Genetic Control over Working Memory
Karlsgodt KH, Kochunov P, Winkler AM, Laird AR, Almasy L, Duggirala R, Olvera RL, Fox PT, Blangero J, Glahn DC. A Multimodal Assessment of the Genetic Control over Working Memory. Journal Of Neuroscience 2010, 30: 8197-8202. PMID: 20554870, PMCID: PMC2894480, DOI: 10.1523/jneurosci.0359-10.2010.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overAnisotropyBrainBrain MappingDiffusion Magnetic Resonance ImagingFemaleHumansImage Processing, Computer-AssistedMagnetic Resonance ImagingMaleMemory, Short-TermMexican AmericansMiddle AgedNerve Fibers, MyelinatedNeural PathwaysNeuropsychological TestsOxygenPedigreeYoung AdultConceptsMemory performanceComplex cognitive functionsHigher-level processesGray matter densityWorking memoryCognitive measuresResponse taskStructural magnetic resonanceGeneral intelligenceSuperior longitudinal fasciculusHuman participantsWhite matter tractsCognitive functionCognitive deficitsOnly performanceMultimodal assessmentBrain regionsMemoryCommon genetic factorsLongitudinal fasciculusMajor white matter tractsLevel processesMeasuresGray matter regionsCore component