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The Importance of Temperament for Understanding Early Manifestations of Autism Spectrum Disorder in High-Risk Infants
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Paterson, Sarah J.; Wolff, Jason J.; Elison, Jed T.; Winder-Patel, Breanna; Zwaigenbaum, Lonnie; Estes, Annette; Pandey, Juhi; Schultz, Robert T.; Botteron, Kelly; Dager, Stephen R.; Hazlett, Heather C.; Piven, Joseph; Piven, J.; Hazlett, H. C.; Chappell, C.; Dager, S.; Estes, A.; Shaw, D.; Botteron, K. N.; McKinstry, R. C.; Constantino, J.; Pruett, J.; Schultz, R. T.; Paterson, S.; Zwaigenbaum, L.; Elison, J.; Evans, A. C.; Collins, D. L.; Pike, G. B.; Fonov, V.; Kostopoulos, P.; Das, S.; Gerig, G.; Styner, M.; Gu, H. – Journal of Autism and Developmental Disorders, 2019
The present study investigated the relationship between infant temperament characteristics and autism spectrum disorder (ASD) risk status. Temperament was examined at 6, 12, and 24 months in 282 infants at high familial risk for ASD and 114 low-risk controls using the Infant Behavior Questionnaire-Revised and Early Childhood Behavior…
Descriptors: Autism, Pervasive Developmental Disorders, Infants, At Risk Persons
Longitudinal Differences in Response to Name among Infants Developing ASD and Risk for ADHD
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Hatch, Burt; Iosif, Ana-Maria; Chuang, Annie; de la Paz, Leiana; Ozonoff, Sally; Miller, Meghan – Journal of Autism and Developmental Disorders, 2021
Diminished response to name, a potential early marker of autism spectrum disorder (ASD), may also indicate risk for other disorders characterized by attention problems, including attention-deficit/hyperactivity disorder (ADHD). Using a familial risk design, we examined whether response to name ability at 6, 12, 18, 24, and 36 months of age…
Descriptors: Longitudinal Studies, Autism, Pervasive Developmental Disorders, Attention Deficit Hyperactivity Disorder
Exploring Factors of Diagnostic Timing among Black Autistic Youth
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Harlee Onovbiona; Lauren Quetsch; Emily-Anne Del Rosario – Journal of Autism and Developmental Disorders, 2025
The goal of the present study was to compare profiles among Black families of autistic youth who were identified Early ([less than or equal to] 2 years of age), Mid (age 3 or 4), and Delayed ([greater than or equal to] 5 years of age) to better identify the characteristics that contribute to early ASD identification and delayed ASD identification.…
Descriptors: Infants, Toddlers, Infant Care, Preschool Children
Temperament as an Early Risk Marker for Autism Spectrum Disorders? A Longitudinal Study of High-Risk and Low-Risk Infants
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Pijl, M. K. J.; Bussu, G.; Charman, T.; Johnson, M. H.; Jones, E. J. H.; Pasco, G.; Oosterling, I. J.; Rommelse, N. N. J.; Buitelaar, J. K. – Journal of Autism and Developmental Disorders, 2019
To investigate temperament as an early risk marker for autism spectrum disorder (ASD), we examined parent-reported temperament for high-risk (HR, n = 170) and low-risk (LR, n = 77) siblings at 8, 14, and 24 months. Diagnostic assessment was performed at 36 months. Group-based analyses showed linear risk gradients, with more atypical temperament…
Descriptors: At Risk Persons, Autism, Pervasive Developmental Disorders, Personality Traits
Resting and Task-Modulated High-Frequency Brain Rhythms Measured by Scalp Encephalography in Infants with Tuberous Sclerosis Complex
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Stamoulis, Catherine; Vogel-Farley, Vanessa; Degregorio, Geneva; Jeste, Shafali S.; Nelson, Charles A. – Journal of Autism and Developmental Disorders, 2015
The electrophysiological correlates of cognitive deficits in tuberous sclerosis complex (TSC) are not well understood, and modulations of neural dynamics by neuroanatomical abnormalities that characterize the disorder remain elusive. Neural oscillations (rhythms) are a fundamental aspect of brain function, and have dominant frequencies in a wide…
Descriptors: Infants, Brain, Genetic Disorders, Medicine
Sex Differences in Co-Occurring Conditions among Autistic Children and Youth in Florida: A Retrospective Cohort Study (2012-2019)
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Angell, Amber M.; Deavenport-Saman, Alexis; Yin, Larry; Zou, Baiming; Bai, Chen; Varma, Deepthi; Solomon, Olga – Journal of Autism and Developmental Disorders, 2021
Autistic children have a high prevalence of co-occurring mental health, developmental/behavioral, and medical conditions, but research on sex/gender differences has been mixed. We used Florida healthcare claims data to characterize sex differences (female/male) in co-occurring conditions among autistic children ages 1-21 (N = 83,500). After…
Descriptors: Gender Differences, Comorbidity, Mental Health, Incidence
Developmental Changes in Empathic Concern and Self-Understanding in Toddlers at Genetic Risk for Autism Spectrum Disorder
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Campbell, Susan B.; Moore, Elizabeth L.; Northrup, Jessie; Brownell, Celia A. – Journal of Autism and Developmental Disorders, 2017
Toddlers with an older sibling with autism spectrum disorder (ASD) and low risk (LR) toddlers were observed at 22, 28, and 34 months during two empathy probes: a crying baby and an adult who pretended to hurt her finger. Toddlers with a later ASD diagnosis showed less empathic concern and self-distress at each age on both empathy probes than LR…
Descriptors: Toddlers, At Risk Persons, Autism, Pervasive Developmental Disorders
Identification of Symptoms of Autism Spectrum Disorders in the Second Year of Life at Day-Care Centres by Day-Care Staff: Step One in the Development of a Short Observation List
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Larsen, Kenneth; Aasland, Astrid; Diseth, Trond H. – Journal of Autism and Developmental Disorders, 2018
Early symptoms of ASD develop through the second year of life, making a stable ASD diagnosis possible at 24 months of age. However, in general, children with ASD have their diagnosis at an older age. This retrospective study, including 30 children with ASD and 30 control children aged 3-6 years, explored the possibility of developing a short…
Descriptors: Autism, Pervasive Developmental Disorders, Symptoms (Individual Disorders), Clinical Diagnosis
From Using Tools to Using Language in Infant Siblings of Children with Autism
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Sparaci, Laura; Northrup, Jessie B.; Capirci, Olga; Iverson, Jana M. – Journal of Autism and Developmental Disorders, 2018
Forty-one high-risk infants (HR) with an older sibling with autism spectrum disorder (ASD) were observed longitudinally at 10, 12, 18 and 24 months of age during a tool use task in a play-like scenario. Changes in grasp types and functional actions produced with a spoon were assessed during elicited tool use. Outcome and vocabulary measures were…
Descriptors: Infants, At Risk Persons, Autism, Longitudinal Studies
Behavioral Markers of Emergent Stranger Anxiety in Infants and Toddlers with Fragile X Syndrome
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Tonnsen, Bridgette; Scherr, Jessica; Reisinger, Debra; Roberts, Jane – Journal of Autism and Developmental Disorders, 2017
Studying anxiety in neurogenetic syndromes may inform the intersection of biological and developmental risks, facilitating effective and targeted interventions. We longitudinally examined stranger fear in infants and toddlers with fragile X syndrome (FXS; n = 46) and typical controls (n = 33), as well as associations between observed stranger fear…
Descriptors: Anxiety, Longitudinal Studies, Fear, Infants
Maternal Gesture Use and Language Development in Infant Siblings of Children with Autism Spectrum Disorder
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Talbott, Meagan R.; Nelson, Charles A.; Tager-Flusberg, Helen – Journal of Autism and Developmental Disorders, 2015
Impairments in language and communication are an early-appearing feature of autism spectrum disorders (ASD), with delays in language and gesture evident as early as the first year of life. Research with typically developing populations highlights the importance of both infant and maternal gesture use in infants' early language development.…
Descriptors: Mothers, Nonverbal Communication, Autism, Language Impairments
Autism Treatment in the First Year of Life: A Pilot Study of Infant Start, a Parent-Implemented Intervention for Symptomatic Infants
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Rogers, S. J.; Vismara, L.; Wagner, A. L.; McCormick, C.; Young, G.; Ozonoff, S. – Journal of Autism and Developmental Disorders, 2014
The goal of early autism screening is earlier treatment. We pilot-tested a 12-week, low-intensity treatment with seven symptomatic infants ages 7-15 months. Parents mastered the intervention and maintained skills after treatment ended. Four comparison groups were matched from a study of infant siblings. The treated group of infants was…
Descriptors: Autism, Screening Tests, Infants, Toddlers
Parent-Reported Temperament Trajectories among Infant Siblings of Children with Autism
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del Rosario, Mithi; Gillespie-Lynch, Kristen; Johnson, Scott; Sigman, Marian; Hutman, Ted – Journal of Autism and Developmental Disorders, 2014
Temperament atypicalities have been documented in infancy and early development in children who develop autism spectrum disorders (ASD). The current study investigates whether there are differences in developmental trajectories of temperament between infants and toddlers with and without ASD. Parents of infant siblings of children with autism…
Descriptors: Parent Attitudes, Siblings, Personality Traits, Infants
Vocal Patterns in Infants with Autism Spectrum Disorder: Canonical Babbling Status and Vocalization Frequency
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Patten, Elena; Belardi, Katie; Baranek, Grace T.; Watson, Linda R.; Labban, Jeffrey D.; Oller, D. Kimbrough – Journal of Autism and Developmental Disorders, 2014
Canonical babbling is a critical milestone for speech development and is usually well in place by 10 months. The possibility that infants with autism spectrum disorder (ASD) show late onset of canonical babbling has so far eluded evaluation. Rate of vocalization or "volubility" has also been suggested as possibly aberrant in infants with…
Descriptors: Language Acquisition, Child Language, Infants, Pervasive Developmental Disorders
Temperament in the First 2 Years of Life in Infants at High-Risk for Autism Spectrum Disorders
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Clifford, Sally M.; Hudry, Kristelle; Elsabbagh, Mayada; Charman, Tony; Johnson, Mark H. – Journal of Autism and Developmental Disorders, 2013
The current study investigated early temperament in 54 infants at familial high-risk of ASD and 50 controls. Parental report of temperament was assessed around 7, 14 and 24 months of age and diagnostic assessment was conducted at 3 years. The high-risk group showed reduced "Surgency" at 7 and 14 months and reduced "Effortful Control" at 14 and 24…
Descriptors: Autism, Personality Traits, Comparative Analysis, Infants
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