2022
Elevated symptoms of executive dysfunction predict lower adaptive functioning in 3‐year‐olds with autism spectrum disorder
Powell K, Macari S, Brennan‐Wydra E, Feiner H, Butler M, Fortes D, Boxberger A, Torres‐Viso M, Morgan C, Lyons M, Chawarska K. Elevated symptoms of executive dysfunction predict lower adaptive functioning in 3‐year‐olds with autism spectrum disorder. Autism Research 2022, 15: 1336-1347. PMID: 35388596, PMCID: PMC9253075, DOI: 10.1002/aur.2715.Peer-Reviewed Original ResearchConceptsAutism spectrum disorderDaily living skillsExecutive functioningEF deficitsAdaptive functioningSpectrum disorderLiving skillsExecutive functioning (EF) deficitsAutism severity scoresLower adaptive functioningCognitive flexibilityAtypical developmentDevelopmental presentationExecutive dysfunctionAdaptive skillsNonverbal functioningVABS-IIElevated symptomsAge threeToddlersLong-term detrimental impactDevelopmental quotientFunctioningChronological ageSymptom severity
2020
Low-motion fMRI data can be obtained in pediatric participants undergoing a 60-minute scan protocol
Horien C, Fontenelle S, Joseph K, Powell N, Nutor C, Fortes D, Butler M, Powell K, Macris D, Lee K, Greene AS, McPartland JC, Volkmar FR, Scheinost D, Chawarska K, Constable RT. Low-motion fMRI data can be obtained in pediatric participants undergoing a 60-minute scan protocol. Scientific Reports 2020, 10: 21855. PMID: 33318557, PMCID: PMC7736342, DOI: 10.1038/s41598-020-78885-z.Peer-Reviewed Original ResearchConceptsPediatric participantsMRI protocolMagnetic resonance imaging (MRI) scansFunctional magnetic resonance imaging (fMRI) scansShorter MRI protocolsScan protocolResonance imaging scansImaging scansMRI sessionsFMRI connectivity analysisFMRI dataFMRI findingsSignificant confoundScansReplication groupConnectivity analysisAutism spectrum disorderMock scanSpectrum disorderParticipantsHead motionProtocolContext-Specific Dyadic Attention Vulnerabilities During the First Year in Infants Later Developing Autism Spectrum Disorder
Macari S, Milgramm A, Reed J, Shic F, Powell KK, Macris D, Chawarska K. Context-Specific Dyadic Attention Vulnerabilities During the First Year in Infants Later Developing Autism Spectrum Disorder. Journal Of The American Academy Of Child & Adolescent Psychiatry 2020, 60: 166-175. PMID: 32061926, PMCID: PMC9524139, DOI: 10.1016/j.jaac.2019.12.012.Peer-Reviewed Original ResearchConceptsAutism spectrum disorderLow familial riskHigh familial riskTypical developmentSpectrum disorderExaminer's faceInteractive partnersToy playEye-tracking findingsChild-directed speechCandidate behavioral markerEye-tracking studyEffects of contextFamilial riskAtypical attentionProbe taskASD groupAutism symptomsBehavioral markersSubtle impairmentsEye contactLive interactionDevelopmental challengesLow attentionPlay condition
2018
Emotional Expressivity in Toddlers With Autism Spectrum Disorder
Macari S, DiNicola L, Kane-Grade F, Prince E, Vernetti A, Powell K, Fontenelle S, Chawarska K. Emotional Expressivity in Toddlers With Autism Spectrum Disorder. Journal Of The American Academy Of Child & Adolescent Psychiatry 2018, 57: 828-836.e2. PMID: 30392624, PMCID: PMC6844292, DOI: 10.1016/j.jaac.2018.07.872.Peer-Reviewed Original ResearchConceptsAutism spectrum disorderAutism Diagnostic Observation Schedule-2Emotional expressivenessEarly Childhood Behavior QuestionnaireAutism severityPositive emotionsSpectrum disorderGreater autism severityNegative emotional expressivenessParent-reported temperamentImportance of emotionsIntensity of fearChildhood Behavior QuestionnaireASD displayASD groupEmotional expressivityAutism symptomsVocal channelNegative emotionalityTD groupTypical developmentCognitive developmentGoal blockageIntense angerIntense fear
2015
Enhanced Social Attention in Female Infant Siblings at Risk for Autism
Chawarska K, Macari S, Powell K, DiNicola L, Shic F. Enhanced Social Attention in Female Infant Siblings at Risk for Autism. Journal Of The American Academy Of Child & Adolescent Psychiatry 2015, 55: 188-195.e1. PMID: 26903252, PMCID: PMC5812780, DOI: 10.1016/j.jaac.2015.11.016.Peer-Reviewed Original ResearchConceptsAutism spectrum disorderSocial orientingRelevant stimuliSocial targetsEye-tracking studySevere social impairmentAutism riskLow-risk controlsComorbid anxiety symptomsSex differencesAtypical attentionInfant siblingsSocial attentionHigh-risk malesEnhanced attentionSocial impairmentSpectrum disorderHigh-risk femalesAnxiety symptomsOrientingSocial experienceNeurobehavioral measuresLow-risk malesAtypical patternsProtective factors