Kelly Powell, PhD
Associate Professor in the Child Study CenterCards
About
Research
Publications
2026
Optimizing functional connectivity scanning conditions for predicting autistic traits
Horien C, Mandino F, Greene A, Shen X, Powell K, Vernetti A, O’Connor D, Adkinson B, Tejavibulya L, McPartland J, Volkmar F, Chun M, Chawarska K, Lake E, Rosenberg M, Satterthwaite T, Scheinost D, Finn E, Constable R. Optimizing functional connectivity scanning conditions for predicting autistic traits. Nature Mental Health 2026, 4: 792-805. PMID: 42137910, PMCID: PMC13167459, DOI: 10.1038/s44220-026-00623-7.Peer-Reviewed Original ResearchEffortful Control But Not Negative Affectivity Predicts Intensity of Restricted Repetitive Behaviors in Toddlers With Neurodevelopmental Conditions
Macari S, Bell G, Bianco C, Hamilton S, Torres-Viso M, Powell K, Vernetti A, Wang L, Morgan C, Lyons M, Hinz J, Fernandez T, Chawarska K. Effortful Control But Not Negative Affectivity Predicts Intensity of Restricted Repetitive Behaviors in Toddlers With Neurodevelopmental Conditions. JAACAP Open 2026 DOI: 10.1016/j.jaacop.2026.03.008.Peer-Reviewed Original Research
2025
Functional Connectivity in the Social Perception Pathway at Birth Is Linked to Attention to Faces at Four Months
Chawarska K, Vernetti A, Sun H, Hampson M, Li C, Macari S, Powell K, Constable R, Chang J, Ment L, Scheinost D. Functional Connectivity in the Social Perception Pathway at Birth Is Linked to Attention to Faces at Four Months. Biological Psychiatry Global Open Science 2025, 5: 100597. PMID: 41127567, PMCID: PMC12538059, DOI: 10.1016/j.bpsgos.2025.100597.Peer-Reviewed Original ResearchMotor stereotypies in toddlers with and without autism: A transdiagnostic dimension
Chawarska K, Fernandez T, Milgramm A, Volkmar F, Torres‐Viso M, Powell K, Vernetti A, Macari S, Morgan C. Motor stereotypies in toddlers with and without autism: A transdiagnostic dimension. Journal Of Child Psychology And Psychiatry 2025, 67: 104-114. PMID: 40757458, DOI: 10.1111/jcpp.70023.Peer-Reviewed Original ResearchUnderstanding Motor Stereotypies as a Transdiagnostic Phenotype
Garrido-Torres N, Carney A, Lyons M, Macari S, Morgan C, Powell K, Torres-Viso M, Vernetti A, Chawarska K, Fernandez T. Understanding Motor Stereotypies as a Transdiagnostic Phenotype. Journal Of The American Academy Of Child And Adolescent Psychiatry 2025, 64: 865-869. PMID: 40090545, DOI: 10.1016/j.jaac.2025.03.003.Commentaries, Editorials and Letters
2024
Family history of psychiatric conditions and development of siblings of children with autism
Bellia G, Chang J, Liew Z, Vernetti A, Macari S, Powell K, Chawarska K. Family history of psychiatric conditions and development of siblings of children with autism. Autism Research 2024, 17: 1665-1676. PMID: 38896553, PMCID: PMC11341253, DOI: 10.1002/aur.3175.Peer-Reviewed Original Research
2022
A generalizable connectome-based marker of in-scan sustained attention in neurodiverse youth
Horien C, Greene A, Shen X, Fortes D, Brennan-Wydra E, Banarjee C, Foster R, Donthireddy V, Butler M, Powell K, Vernetti A, Mandino F, O'Connor D, Lake E, McPartland J, Volkmar F, Chun M, Chawarska K, Rosenberg M, Scheinost D, Constable R. A generalizable connectome-based marker of in-scan sustained attention in neurodiverse youth. Cerebral Cortex 2022, 33: 6320-6334. PMID: 36573438, PMCID: PMC10183743, DOI: 10.1093/cercor/bhac506.Peer-Reviewed Original ResearchElevated 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 Research
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 ResearchPreliminary Psychometrics for the Executive Function Challenge Task: A Novel, “Hot” Flexibility, and Planning Task for Youth
Kenworthy L, Freeman A, Ratto A, Dudley K, Powell KK, Pugliese CE, Strang JF, Verbalis A, Anthony LG. Preliminary Psychometrics for the Executive Function Challenge Task: A Novel, “Hot” Flexibility, and Planning Task for Youth. Journal Of The International Neuropsychological Society 2020, 26: 725-732. PMID: 32178755, PMCID: PMC8647841, DOI: 10.1017/s135561772000017x.Peer-Reviewed Original Research
Clinical Trials
Current Trials
Tiny Beginnings, Big Impact: How Early Brain Communication Supports Social Development
IRB ID2000021541RoleSub InvestigatorPrimary Completion Date08/31/2023Recruiting ParticipantsGenderBothAgeUp to 1 year 9 monthsStudy of Brain Function Across the Lifespan
IRB ID2000020891RoleSub InvestigatorPrimary Completion Date07/31/2022Recruiting ParticipantsGenderBothAge18 years - 65 years
Clinical Care
Overview
Kelly Powell, PhD, specializes in pediatric developmental and behavioral medicine, focusing on pervasive developmental disorders and autism spectrum disorder (ASD). She is the co-director of the Yale Toddler Developmental Disabilities Clinic. She provides personalized therapy for individuals with ASD and Asperger syndrome and manages pediatric acute-onset neuropsychiatric syndrome (PANS).
Powell's research explores ASD, executive function and attention, pediatric neuroimaging, parent-clinician agreement, and remote interventions. She studies attention, behavior, and development in children, particularly those with ASD. Her work includes understanding brain connections related to attention, the impact of planning and decision-making difficulties on young children with autism, and early attention challenges in infants later diagnosed with ASD.
Powell is an assistant professor at the Yale Child Study Center.
Clinical Specialties
Fact Sheets
Autism
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Yale Medicine News
News & Links
Media
News
- July 01, 2024
Yale Child Study Center recognizes 2024 award recipients and retirees
- May 10, 2024
Autism conference at Yale highlights latest research & clinical advances
- December 20, 2023
Introducing the Social and Affective Neuroscience of Autism (SANA) Lab at Yale
- June 30, 2022
Yale Child Study Center Recognizes Long-term Service of Faculty & Staff
Get In Touch
Contacts
Locations
300 George Street
Academic Office
New Haven, CT 06511
Patient Care Locations
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