2013
Oxytocin enhances brain function in children with autism
Gordon I, Wyk B, Bennett RH, Cordeaux C, Lucas MV, Eilbott JA, Zagoory-Sharon O, Leckman JF, Feldman R, Pelphrey KA. Oxytocin enhances brain function in children with autism. Proceedings Of The National Academy Of Sciences Of The United States Of America 2013, 110: 20953-20958. PMID: 24297883, PMCID: PMC3876263, DOI: 10.1073/pnas.1312857110.Peer-Reviewed Original ResearchConceptsAutism spectrum disorderSuperior temporal sulcusTemporal sulcusOrbitofrontal cortexLeft superior temporal sulcusMiddle frontal gyrusMedial prefrontal cortexRight orbitofrontal cortexSocial attunementSocial judgmentsMeaningful stimuliFrontal gyrusSpectrum disorderBrain activityPrefrontal cortexRight amygdalaSocial functioningFunctional MRIPremotor cortexHedonic evaluationBrain functionJudgmentsCortexChildrenOxytocinEquivalent neural responses in children and adolescents with and without autism during judgments of affect
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
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 effectAction representation in the superior temporal sulcus in children and adults: An fMRI study
Wyk B, Voos A, Pelphrey KA. Action representation in the superior temporal sulcus in children and adults: An fMRI study. Developmental Cognitive Neuroscience 2012, 2: 409-416. PMID: 22727762, PMCID: PMC3431200, DOI: 10.1016/j.dcn.2012.04.004.Peer-Reviewed Original ResearchConceptsSuperior temporal sulcusFunctional magnetic resonance imaging paradigmCongruent trialsTemporal sulcusPosterior superior temporal sulcusIncongruent actionsBiological motionSTS regionFMRI studyAction representationNegative regardImaging paradigmOrder informationHigher-order informationDevelopmental changesOlder childrenChildrenSulcusAdultsTrialsCongruencyRepresentationCongruentPerceptionObjects
2010
Neural signatures of autism
Kaiser MD, Hudac CM, Shultz S, Lee SM, Cheung C, Berken AM, Deen B, Pitskel NB, Sugrue DR, Voos AC, Saulnier CA, Ventola P, Wolf JM, Klin A, Wyk B, Pelphrey KA. Neural signatures of autism. Proceedings Of The National Academy Of Sciences Of The United States Of America 2010, 107: 21223-21228. PMID: 21078973, PMCID: PMC3000300, DOI: 10.1073/pnas.1010412107.Peer-Reviewed Original ResearchConceptsAutism spectrum disorderNeural signaturesBiological motionBrain responsesUnaffected siblingsDistinct brain responsesFunctional magnetic resonanceAreas of dysfunctionNature of disruptionTD childrenSpectrum disorderDisorder heterogeneityNeural systemsBrain circuitryBehavioral profileCompensatory activitySystem-level mechanismsTrait activityAutismChildrenIncreased genetic riskGenetic riskState activityNeuroendophenotypesDisorders