2023
High-throughput functional analysis of autism genes in zebrafish identifies convergence in dopaminergic and neuroimmune pathways
Mendes H, Neelakantan U, Liu Y, Fitzpatrick S, Chen T, Wu W, Pruitt A, Jin D, Jamadagni P, Carlson M, Lacadie C, Enriquez K, Li N, Zhao D, Ijaz S, Sakai C, Szi C, Rooney B, Ghosh M, Nwabudike I, Gorodezky A, Chowdhury S, Zaheer M, McLaughlin S, Fernandez J, Wu J, Eilbott J, Vander Wyk B, Rihel J, Papademetris X, Wang Z, Hoffman E. High-throughput functional analysis of autism genes in zebrafish identifies convergence in dopaminergic and neuroimmune pathways. Cell Reports 2023, 42: 112243. PMID: 36933215, PMCID: PMC10277173, DOI: 10.1016/j.celrep.2023.112243.Peer-Reviewed Original ResearchConceptsGene lossFunctional analysisHigh-throughput functional analysisZebrafish mutantsGene discoverySelect mutantsASD genesAutism genesKey pathwaysASD biologyBrain size differencesMutantsGenesSize differencesPathwayGlobal increaseRelevant mechanismsBiologyCentral challengeNeuroimmune dysfunctionRegionFunctionDiscoveryAutism spectrum disorder
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 ResearchConceptsSynaptic 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 Aβ deposition and regional synaptic density in early Alzheimer’s disease: a PET imaging study with [11C]UCB-J
O’Dell R, Mecca AP, Chen MK, Naganawa M, Toyonaga T, Lu Y, Godek TA, Harris JE, Bartlett HH, Banks ER, Kominek VL, Zhao W, Nabulsi NB, Ropchan J, Ye Y, Vander Wyk BC, Huang Y, Arnsten AFT, Carson RE, van Dyck CH. Association of Aβ deposition and regional synaptic density in early Alzheimer’s disease: a PET imaging study with [11C]UCB-J. Alzheimer's Research & Therapy 2021, 13: 11. PMID: 33402201, PMCID: PMC7786921, DOI: 10.1186/s13195-020-00742-y.Peer-Reviewed Original ResearchConceptsRegional Aβ depositionAβ depositionEarly Alzheimer's diseaseSynaptic lossSynaptic densityAlzheimer's diseaseDistribution volume ratioPositron emission tomographyHippocampal synaptic densityMild AD dementiaDeposition of AβSignificant inverse associationAmnestic mild cognitive impairmentWhole-brain analysisMild cognitive impairmentCerebellar reference regionPET imaging studiesPlaque burdenAD dementiaInverse associationPostmortem studiesClinical severityNeurodegenerative processesClinical diseaseLarge cohort
2020
In vivo measurement of widespread synaptic loss in Alzheimer's disease with SV2A PET
Mecca AP, Chen M, O'Dell RS, Naganawa M, Toyonaga T, Godek TA, Harris JE, Bartlett HH, Zhao W, Nabulsi NB, Vander Wyk B, Varma P, Arnsten AFT, Huang Y, Carson RE, van Dyck C. In vivo measurement of widespread synaptic loss in Alzheimer's disease with SV2A PET. Alzheimer's & Dementia 2020, 16: 974-982. PMID: 32400950, PMCID: PMC7383876, DOI: 10.1002/alz.12097.Peer-Reviewed Original ResearchConceptsWidespread synaptic lossEarly Alzheimer's diseaseSynaptic lossAlzheimer's diseaseSynaptic vesicle glycoprotein 2AGray matter volumeMajor structural correlatePositron emission tomography (PET) imagingEmission Tomography ImagingDistribution volume ratioCerebellar reference regionNeocortical brain regionsSynaptic densityAD progressionConsistent pathologyPotential therapyMatter volumePromising biomarkerCognitive impairmentCN participantsBrain regionsDiseaseTomography imagingNormal participantsStructural correlates
2017
Neurogenetic analysis of childhood disintegrative disorder
Gupta AR, Westphal A, Yang DYJ, Sullivan CAW, Eilbott J, Zaidi S, Voos A, Vander Wyk BC, Ventola P, Waqar Z, Fernandez TV, Ercan-Sencicek AG, Walker MF, Choi M, Schneider A, Hedderly T, Baird G, Friedman H, Cordeaux C, Ristow A, Shic F, Volkmar FR, Pelphrey KA. Neurogenetic analysis of childhood disintegrative disorder. Molecular Autism 2017, 8: 19. PMID: 28392909, PMCID: PMC5379515, DOI: 10.1186/s13229-017-0133-0.Peer-Reviewed Original ResearchAdaptor Proteins, Signal TransducingAutism Spectrum DisorderBasic Helix-Loop-Helix Transcription FactorsBrainBrain MappingCase-Control StudiesChildChild, PreschoolChromosomes, Human, XDisease ProgressionDNA Copy Number VariationsExome SequencingFemaleGene ExpressionHumansIntellectual DisabilityMagnetic Resonance ImagingMaleMaternal InheritanceNuclear ProteinsPhenotypePolymorphism, GeneticSeverity of Illness IndexSiblingsTranscription FactorsTranscriptome
2016
Intranasal Oxytocin Enhances Connectivity in the Neural Circuitry Supporting Social Motivation and Social Perception in Children with Autism
Gordon I, Jack A, Pretzsch CM, Vander Wyk B, Leckman JF, Feldman R, Pelphrey KA. Intranasal Oxytocin Enhances Connectivity in the Neural Circuitry Supporting Social Motivation and Social Perception in Children with Autism. Scientific Reports 2016, 6: 35054. PMID: 27845765, PMCID: PMC5109935, DOI: 10.1038/srep35054.Peer-Reviewed Original ResearchConceptsAutism spectrum disorderIntranasal oxytocinSocial motivationSocial perceptionSocial-emotional informationFunctional magnetic resonance imagingPlacebo-controlled crossover designBiological motionSocial stimuliAngry voicesSocial deficitsSpectrum disorderOT administrationMesolimbic reward pathwayBehavioral treatmentBrain rewardReduced connectivityBrain regionsReward pathwayCortical sitesRewardPerceptionMotivationOxytocinBrain sites
2015
Normalization of brain morphology after surgery in sagittal craniosynostosis.
Brooks ED, Yang J, Beckett JS, Lacadie C, Scheinost D, Persing S, Zellner EG, Oosting D, Keifer C, Friedman HE, Wyk BV, Jou RJ, Sun H, Gary C, Duncan CC, Constable RT, Pelphrey KA, Persing JA. Normalization of brain morphology after surgery in sagittal craniosynostosis. Journal Of Neurosurgery Pediatrics 2015, 17: 460-8. PMID: 26684766, PMCID: PMC7182140, DOI: 10.3171/2015.7.peds15221.Peer-Reviewed Original ResearchConceptsBrain growthNonsyndromic craniosynostosisBrain morphological differencesWhole-brain techniqueYears of ageSignificant learning disabilitiesIQ-matched control subjectsUntreated infantsMean ageAdolescent patientsControl subjectsWhole-vault cranioplastyBrain dysmorphologySurgical reconstructionBrain areasTemporooccipital regionsSmall cohortSurgeryCognitive functionBrain morphologyBrain normalizationSagittal craniosynostosisLiberal thresholdSagittal nonsyndromic craniosynostosisFrontoparietal regionsUnlike adults, children and adolescents show predominantly increased neural activation to social exclusion by members of the opposite gender
Bolling DZ, Pelphrey KA, Vander Wyk B. Unlike adults, children and adolescents show predominantly increased neural activation to social exclusion by members of the opposite gender. Social Neuroscience 2015, 11: 475-486. PMID: 26592311, PMCID: PMC4976300, DOI: 10.1080/17470919.2015.1117019.Peer-Reviewed Original ResearchConceptsFunctional magnetic resonance imagingNeural correlatesGroup membershipOnline ball-tossing gameSocial exclusionAnterior cingulate responsesBall-tossing gameSocial anxiety disorderOpposite genderSocio-emotional developmentDifferential neural correlatesAnterior cingulate cortexPrevious adult studiesPeer rejectionCingulate responseBrain responsesPeer relationsNeural activationAnxiety disordersCingulate cortexMain effectCurrent studyAdolescenceIncreased activationAdolescents
2014
Altered brain connectivity in sagittal craniosynostosis.
Beckett JS, Brooks ED, Lacadie C, Wyk B, Jou RJ, Steinbacher DM, Constable RT, Pelphrey KA, Persing JA. Altered brain connectivity in sagittal craniosynostosis. Journal Of Neurosurgery Pediatrics 2014, 13: 690-8. PMID: 24745341, DOI: 10.3171/2014.3.peds13516.Peer-Reviewed Original ResearchConceptsDiffusion tensor imagingPosterior cingulate cortexCingulate cortexSagittal nonsyndromic craniosynostosisPrefrontal cortexRight posterior cingulate cortexBrodmann area 8Functional connectivity differencesRight middle frontal gyrusWhite matter alterationsAnterior cingulate cortexBrodmann area 7Left ventromedial prefrontal cortexAltered brain connectivityResting-state functional connectivity MRI dataMiddle frontal gyrusRight supramarginal gyrusDefault mode networkIntrinsic connectivity analysesSignificant group differencesAdolescent patientsAltered connectivityNeurocognitive morbidityHigh prevalenceRight parahippocampus
2013
Social, reward, and attention brain networks are involved when online bids for joint attention are met with congruent versus incongruent responses
Gordon I, Eilbott JA, Feldman R, Pelphrey KA, Vander Wyk B. Social, reward, and attention brain networks are involved when online bids for joint attention are met with congruent versus incongruent responses. Social Neuroscience 2013, 8: 544-554. PMID: 24044427, DOI: 10.1080/17470919.2013.832374.Peer-Reviewed Original ResearchConceptsJoint attentionTemporoparietal junctionIncongruent responsesFMRI paradigmFunctional magnetic resonance imaging (fMRI) researchDorsal anterior cingulate cortexNaturalistic fMRI paradigmsHuman social functioningImpact of congruencySocial responsesRight temporoparietal junctionEye gaze patternsRight fusiform gyrusPosterior parietal cortexMagnetic resonance imaging researchAnterior cingulate cortexSocial neuroscienceIncongruent trialsAttention circuitsFusiform gyrusCongruent responsesNeural activationBrain networksRight amygdalaSocial functioningBrain mechanisms for prepulse inhibition in adults with Tourette syndrome: Initial findings
Zebardast N, Crowley MJ, Bloch MH, Mayes LC, Wyk BV, Leckman JF, Pelphrey KA, Swain JE. Brain mechanisms for prepulse inhibition in adults with Tourette syndrome: Initial findings. Psychiatry Research 2013, 214: 33-41. PMID: 23916249, PMCID: PMC3932431, DOI: 10.1016/j.pscychresns.2013.05.009.Peer-Reviewed Original ResearchConceptsTourette syndromeFunctional magnetic resonance imagingHealthy subjectsTic severityWhole-brain functional magnetic resonance imagingYale Global Tic Severity ScaleTactile startle responseCase-control study designTic Severity ScaleCortical-striatal circuitsBrain activityMagnetic resonance imagingMultiple brain regionsLeft middle frontal gyrusMiddle frontal gyrusDegree of PPIPulse-alone stimuliBlock-design fMRI paradigmTic symptomsNeuropathological dataHealthy controlsPrepulse inhibitionDevelopmental neuropsychiatric disordersSensorimotor gatingLeft caudate
2012
Neural Mechanisms of Improvements in Social Motivation After Pivotal Response Treatment: Two Case Studies
Voos AC, Pelphrey KA, Tirrell J, Bolling DZ, Wyk B, Kaiser MD, McPartland JC, Volkmar FR, Ventola P. Neural Mechanisms of Improvements in Social Motivation After Pivotal Response Treatment: Two Case Studies. Journal Of Autism And Developmental Disorders 2012, 43: 1-10. PMID: 23104615, PMCID: PMC4999079, DOI: 10.1007/s10803-012-1683-9.Peer-Reviewed Original ResearchConceptsPivotal Response TreatmentAutism spectrum disorderSocial stimuliResponse treatmentFunctional magnetic resonance imagingYoung childrenNeural correlatesSocial motivationSocial skillsSocial perceptionNeural mechanismsNeural responsesBehavioral measuresSpectrum disorderSocial communicationBehavioral treatmentEye trackingNeural systemsAdaptive behaviorBrain regionsBaseline measuresStriking gainsStimuliChildrenPositive effect
2011
Differential brain responses to social exclusion by one's own versus opposite-gender peers
Bolling DZ, Pelphrey KA, Vander Wyk B. Differential brain responses to social exclusion by one's own versus opposite-gender peers. Social Neuroscience 2011, 7: 331-346. PMID: 21981758, PMCID: PMC4520218, DOI: 10.1080/17470919.2011.623181.Peer-Reviewed Original ResearchConceptsCortex activationVentrolateral prefrontal cortex activationImplicit gender attitudesAnterior cingulate cortex activationBall-tossing gameOpposite-gender peersDifferential brain responsesVentrolateral prefrontal cortexSelf-reported distressPrefrontal cortex activationSame-gender peersFunctional magnetic resonanceSocial exclusionSocial cognitionIndividual differencesPsychological threatBrain responsesNeural responsesPeer relationsPrefrontal cortexEmotional benefitsOwn genderOpposite genderGender attitudesCurrent studyEnhanced neural responses to rule violation in children with autism: A comparison to social exclusion
Bolling DZ, Pitskel NB, Deen B, Crowley MJ, McPartland JC, Kaiser MD, Vander Wyk BC, Wu J, Mayes LC, Pelphrey KA. Enhanced neural responses to rule violation in children with autism: A comparison to social exclusion. Developmental Cognitive Neuroscience 2011, 1: 280-294. PMID: 21743819, PMCID: PMC3129780, DOI: 10.1016/j.dcn.2011.02.002.Peer-Reviewed Original ResearchConceptsAutism spectrum disorderFunctional magnetic resonance imagingRight insulaVentral anterior cingulate cortexSocial exclusionAtypical neural networksRule violationsBall-tossing gameDorsal prefrontal cortexRepetitive behavior patternsAnterior cingulate cortexASD groupNeural correlatesBrain responsesSocial impairmentNeural responsesCharacteristic deficitsSpectrum disorderNeurobiological differencesPrefrontal cortexCingulate cortexFunctional connectivityComparable gamesInsulaGroup differencesBrain Mechanisms for Processing Direct and Averted Gaze in Individuals with Autism
Pitskel NB, Bolling DZ, Hudac CM, Lantz SD, Minshew NJ, Vander Wyk BC, Pelphrey KA. Brain Mechanisms for Processing Direct and Averted Gaze in Individuals with Autism. Journal Of Autism And Developmental Disorders 2011, 41: 1686-1693. PMID: 21484518, PMCID: PMC3337548, DOI: 10.1007/s10803-011-1197-x.Peer-Reviewed Original ResearchConceptsAverted gazeBrain mechanismsCritical social cueRight temporoparietal junctionLateral occipital cortexDorsolateral prefrontal cortexRight anterior insulaSocial processingTemporoparietal junctionSocial cuesComparison participantsAnterior insulaFMRI studySocial deficitsSocial scenariosGaze directionPrefrontal cortexCondition interactionAutismSocial encountersDifferential processingInitial evidenceOccipital cortexGazeSignificant groupResearch Review: Constraining heterogeneity: the social brain and its development in autism spectrum disorder
Pelphrey KA, Shultz S, Hudac CM, Wyk B. Research Review: Constraining heterogeneity: the social brain and its development in autism spectrum disorder. Journal Of Child Psychology And Psychiatry 2011, 52: 631-644. PMID: 21244421, PMCID: PMC3096715, DOI: 10.1111/j.1469-7610.2010.02349.x.Peer-Reviewed Original ResearchMeSH KeywordsAmygdalaBrainBrain MappingChildChild Development Disorders, PervasiveEmotionsEndophenotypesFacial ExpressionFemaleGenetic Predisposition to DiseaseHumansIntentionMagnetic Resonance ImagingMaleNerve NetPattern Recognition, VisualPersonal Construct TheorySocializationTemporal LobeTheory of MindConceptsAutism spectrum disorderSocial information processingSuperior temporal sulcusSpectrum disorderPosterior superior temporal sulcusInformation processingSocial engagementSpecialized neural systemsModel of ASDFunctional neuroimaging researchSocial brainTemporal sulcusBrain mechanismsNeuroimaging researchSocial reciprocityRepetitive behaviorsNeural circuitryNeural systemsBrain endophenotypesDevelopmental studiesDevastating familySocial worldNeurodevelopmental disordersNeural structuresNeuroanatomical structures
2010
Brain mechanisms for representing what another person sees
Heyda RD, Green SR, Vander Wyk B, Morris JP, Pelphrey KA. Brain mechanisms for representing what another person sees. NeuroImage 2010, 50: 693-700. PMID: 20056152, PMCID: PMC2824003, DOI: 10.1016/j.neuroimage.2009.12.101.Peer-Reviewed Original ResearchConceptsExtrastriate body areaParahippocampal place areaFunctional magnetic resonance imagingSocial cognitionVisual attentionDual-role hypothesisAttribution hypothesisPerson's visual attentionWhole-brain analysisSocial brainStimulus categoriesBrain mechanismsPlace areaVisible stimuliVisual regionsSame stimuliBrain regionsInterest analysisCognitionStimuliParticipants' viewsSpecific categoriesMagnetic resonance imagingExtrastriateHypothesis