2022
Sex differences in default mode network connectivity in healthy aging adults
Ficek-Tani B, Horien C, Ju S, Xu W, Li N, Lacadie C, Shen X, Scheinost D, Constable T, Fredericks C. Sex differences in default mode network connectivity in healthy aging adults. Cerebral Cortex 2022, 33: 6139-6151. PMID: 36563018, PMCID: PMC10183749, DOI: 10.1093/cercor/bhac491.Peer-Reviewed Original ResearchMeSH KeywordsAdultBrainConnectomeDefault Mode NetworkFemaleHealthy AgingHumansMagnetic Resonance ImagingMaleNerve NetNeuropsychological TestsSex CharacteristicsConceptsDefault mode networkPreclinical Alzheimer's diseaseAlzheimer's diseaseSex differencesBrain connectivity changesDefault mode network connectivityIntrinsic connectivity distributionSeed-based analysisMode network connectivityMedial prefrontal cortexPosterior DMN nodesHealthy aging adultsImpact of sexLifetime riskDMN connectivityWhole brainPosterior cingulateDMN nodesSignificant sex differencesPrefrontal cortexConnectivity changesAging AdultsHealthy participantsDMN functionMode network
2021
Association of CSF Biomarkers With Hippocampal-Dependent Memory in Preclinical Alzheimer Disease.
Trelle AN, Carr VA, Wilson EN, Swarovski MS, Hunt MP, Toueg TN, Tran TT, Channappa D, Corso NK, Thieu MK, Jayakumar M, Nadiadwala A, Guo W, Tanner NJ, Bernstein JD, Litovsky CP, Guerin SA, Khazenzon AM, Harrison MB, Rutt BK, Deutsch GK, Chin FT, Davidzon GA, Hall JN, Sha SJ, Fredericks CA, Andreasson KI, Kerchner GA, Wagner AD, Mormino EC. Association of CSF Biomarkers With Hippocampal-Dependent Memory in Preclinical Alzheimer Disease. Neurology 2021, 96: e1470-e1481. PMID: 33408146, PMCID: PMC8055319, DOI: 10.1212/wnl.0000000000011477.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overAgingAlzheimer DiseaseAmyloid beta-PeptidesAssociation LearningBiomarkersCross-Sectional StudiesCuesDiscrimination, PsychologicalFemaleHippocampusHumansMaleMemoryMemory DisordersMemory, EpisodicMental RecallMiddle AgedNeuropsychological TestsPeptide FragmentsPsychomotor PerformanceTau ProteinsConceptsMemory taskHippocampal functionMnemonic discrimination taskMnemonic discrimination performanceUnimpaired older adultsHippocampal-dependent memoryPreclinical Alzheimer's diseaseEpisodic memoryPreclinical AD pathologyIndividual differencesMemory assessmentMemory performanceDiscrimination taskTask difficultyAssociative memoryDiscrimination performanceSingle batch analysisCross-sectional relationshipMemory studiesOlder adultsMemoryAlzheimer's disease biomarkersCSF β-amyloidElevated p-tauRecall
2019
Relative preservation of facial expression recognition in posterior cortical atrophy.
Pressman PS, Gola K, Shdo SM, Miller BL, Fredericks C, Mielke C, Pelak V, Rankin KP. Relative preservation of facial expression recognition in posterior cortical atrophy. Neurology 2019, 92: e1064-e1071. PMID: 30760634, PMCID: PMC6442010, DOI: 10.1212/wnl.0000000000007075.Peer-Reviewed Original ResearchConceptsPosterior cortical atrophyBehavioral variant frontotemporal dementiaAlzheimer's diseaseCortical atrophyHealthy controlsVariant frontotemporal dementiaObservational studyRelative preservationAffective blindsightBvFTD groupFrontotemporal dementiaPatientsGroup differencesAtrophyGroupDementiaDisease
2018
Intrinsic connectivity networks in posterior cortical atrophy: A role for the pulvinar?
Fredericks CA, Brown JA, Deng J, Kramer A, Ossenkoppele R, Rankin K, Kramer JH, Miller BL, Rabinovici GD, Seeley WW. Intrinsic connectivity networks in posterior cortical atrophy: A role for the pulvinar? NeuroImage Clinical 2018, 21: 101628. PMID: 30528957, PMCID: PMC6411779, DOI: 10.1016/j.nicl.2018.101628.Peer-Reviewed Original ResearchMeSH KeywordsAgedAtrophyCerebral CortexFemaleHumansMagnetic Resonance ImagingMaleMiddle AgedNerve NetNeuropsychological TestsPulvinarConceptsPosterior cortical atrophyVisuospatial networkAlzheimer's diseaseClinical featuresCortical atrophyPulvinar nucleusSN connectivityConnectivity changesPulvinar thalamic nucleiPatients' clinical featuresAmnestic Alzheimer's diseaseMedial pulvinar nucleusLateral pulvinar nucleusDefault mode network connectivitySalience network connectivityMore depressive symptomsMode network connectivityStandardized neuropsychological batteryTask-free fMRIIntrinsic connectivity networksDirect anatomical connectionsVisuospatial symptomsConnectivity increasesBrain atrophyPCa patients
2003
A Functional Magnetic Resonance Imaging Study of Bipolar Disorder: State- and Trait-Related Dysfunction in Ventral Prefrontal Cortices
Blumberg HP, Leung HC, Skudlarski P, Lacadie CM, Fredericks CA, Harris BC, Charney DS, Gore JC, Krystal JH, Peterson BS. A Functional Magnetic Resonance Imaging Study of Bipolar Disorder: State- and Trait-Related Dysfunction in Ventral Prefrontal Cortices. JAMA Psychiatry 2003, 60: 601-609. PMID: 12796223, DOI: 10.1001/archpsyc.60.6.601.Peer-Reviewed Original ResearchConceptsVentral prefrontal cortexBipolar disorderPrefrontal cortexMood statesMagnetic resonance imaging studyHealthy control subjectsAcute mood statesLeft ventral prefrontal cortexResonance imaging studySignal changesDisturbances of attentionFunctional magnetic resonance imaging studyAnterior cingulate cortexBipolar disorder IDorsal anterior cingulateEvent-related functional magnetic resonanceFunctional magnetic resonanceAcute episodeControl subjectsExaggerated increaseFunctional impairmentBlunted activationMood episodesSpecific mood statesPrefrontal abnormalities