2022
Synaptic density and cognitive performance in Alzheimer's disease: A PET imaging study with [11C]UCB‐J
Mecca AP, O'Dell RS, Sharp ES, Banks ER, Bartlett HH, Zhao W, Lipior S, Diepenbrock NG, Chen M, Naganawa M, Toyonaga T, Nabulsi NB, Vander Wyk B, Arnsten AFT, Huang Y, Carson RE, van Dyck C. Synaptic density and cognitive performance in Alzheimer's disease: A PET imaging study with [11C]UCB‐J. Alzheimer's & Dementia 2022, 18: 2527-2536. PMID: 35174954, PMCID: PMC9381645, DOI: 10.1002/alz.12582.Peer-Reviewed Original ResearchMeSH KeywordsAlzheimer DiseaseBrainCognitionCognitive DysfunctionHumansPositron-Emission TomographySynapsesConceptsSynaptic densityEarly Alzheimer's diseaseAlzheimer's diseaseCognitive performanceMajor pathological correlateGray matter volumePositron emission tomography (PET) imagingEmission Tomography ImagingPET imaging studiesIndividual cognitive domainsNeuropathologic studiesSignificant positive associationSynapse lossSynaptic alterationsPathological correlatesNeuropsychological test performanceMatter volumeCognitive impairmentSignificant associationImaging studiesDiseaseTomography imagingGlobal cognitionStrongest predictorPositive association
2021
Association of entorhinal cortical tau deposition and hippocampal synaptic density in older individuals with normal cognition and early Alzheimer's disease
Mecca AP, Chen MK, O'Dell RS, Naganawa M, Toyonaga T, Godek TA, Harris JE, Bartlett HH, Zhao W, Banks ER, Ni GS, Rogers K, Gallezot JD, Ropchan J, Emery PR, Nabulsi NB, Vander Wyk BC, Arnsten AFT, Huang Y, Carson RE, van Dyck CH. Association of entorhinal cortical tau deposition and hippocampal synaptic density in older individuals with normal cognition and early Alzheimer's disease. Neurobiology Of Aging 2021, 111: 44-53. PMID: 34963063, PMCID: PMC8761170, DOI: 10.1016/j.neurobiolaging.2021.11.004.Peer-Reviewed Original ResearchMeSH KeywordsAgingAlzheimer DiseaseCognitionEntorhinal CortexHealthy AgingHippocampusSynapsesTau ProteinsConceptsHippocampal synaptic densitySynaptic densityAlzheimer's diseaseCortical tau depositionEarly neuropathologic changesInitial clinical featuresSynaptic vesicle glycoprotein 2AEarly Alzheimer's diseaseOverall sampleEntorhinal cortical cellsClinical featuresNeuropathologic changesTau depositionTau pathologyInverse associationPerforant pathAD groupSynaptic failureNormal cognitionOlder individualsEarly degenerationDiseaseNormal participantsHippocampusTau
2013
Equivalent neural responses in children and adolescents with and without autism during judgments of affect
Vander Wyk B, Hoffman F, Pelphrey KA. Equivalent neural responses in children and adolescents with and without autism during judgments of affect. Developmental Cognitive Neuroscience 2013, 8: 121-130. PMID: 24016745, PMCID: PMC3931746, DOI: 10.1016/j.dcn.2013.08.001.Peer-Reviewed Original ResearchConceptsAutism spectrum disorderCognitive loadNeural activationGreater cognitive loadFunction of taskFunctional connectivity analysisLonger stimulus durationsEmotion processingFMRI taskCondition contrastsNeural responsesSpectrum disorderStimulus durationBehavior measuresConnectivity analysisGroup differencesPrior researchPrevious researchEmotionsTaskChildrenValence levelsIQAutismIndividuals