[article] 
inJournal of Child Psychology and Psychiatry > 63-6 (June 2022) . - p.663-673

Titre :	Patterns of objectively measured motor activity among infants developing ASD and concerns for ADHD
Type de document :	Texte imprimé et/ou numérique
Auteurs :	Rachel REETZKE, Auteur ; Ana-Maria IOSIF, Auteur ; Burt HATCH, Auteur ; Leiana DE LA PAZ, Auteur ; Annie CHUANG, Auteur ; Sally OZONOFF, Auteur ; Meghan MILLER, Auteur
Article en page(s) :	p.663-673
Langues :	Anglais (eng)
Mots-clés :	Activity level  attention-deficit/hyperactivity disorder  autism spectrum disorder  infancy
Index. décimale :	PER Périodiques
Résumé :	BACKGROUND: Heightened motor activity is a hallmark of attention-deficit/hyperactivity disorder (ADHD), yet high activity levels are also often reported in young children with autism spectrum disorder (ASD). It is currently unclear whether increased motor activity represents a distinct versus shared early predictor of ASD and ADHD; no prior studies have directly examined this prospectively. We investigated differences in longitudinal patterns of objectively measured motor activity during early development. METHODS: Participants included 113 infants at high and low risk for ASD or ADHD. Continuous motion-based activity was recorded using tri-axial accelerometers at 12, 18, 24, and 36?months of age. At 36?months, participants were categorized into one of three outcome groups: ASD (n=19), ADHD Concerns (n=17), and Typically Developing (TD; n=77). Group differences in trajectories of motor activity were examined in structured and semistructured contexts. Associations with behaviors relevant to ASD, ADHD, and general development were also examined. RESULTS: In both structured and semistructured contexts, both the ASD and ADHD Concerns groups exhibited heightened activity relative to the TD group by 18?months; the ASD group exhibited higher activity than the ADHD Concerns group at 24-36?months in the structured context only. Attention/behavior regulation, nonverbal, and verbal development-but not social engagement-were differentially associated with objectively measured activity by outcome group across contexts. CONCLUSIONS: Overactivity may be a shared, rather than distinct, precursor of atypical development in infants/toddlers developing ASD and concerns for ADHD, emerging as early as 18?months. Group differences in overactivity may be context-specific and associated with different underlying mechanisms.
En ligne :	http://dx.doi.org/10.1111/jcpp.13504
Permalink :	https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=475

[article] Patterns of objectively measured motor activity among infants developing ASD and concerns for ADHD [Texte imprimé et/ou numérique] / Rachel REETZKE, Auteur ; Ana-Maria IOSIF, Auteur ; Burt HATCH, Auteur ; Leiana DE LA PAZ, Auteur ; Annie CHUANG, Auteur ; Sally OZONOFF, Auteur ; Meghan MILLER, Auteur . - p.663-673.
Langues : Anglais (eng)
in Journal of Child Psychology and Psychiatry > 63-6 (June 2022) . - p.663-673

Mots-clés :	Activity level  attention-deficit/hyperactivity disorder  autism spectrum disorder  infancy
Index. décimale :	PER Périodiques
Résumé :	BACKGROUND: Heightened motor activity is a hallmark of attention-deficit/hyperactivity disorder (ADHD), yet high activity levels are also often reported in young children with autism spectrum disorder (ASD). It is currently unclear whether increased motor activity represents a distinct versus shared early predictor of ASD and ADHD; no prior studies have directly examined this prospectively. We investigated differences in longitudinal patterns of objectively measured motor activity during early development. METHODS: Participants included 113 infants at high and low risk for ASD or ADHD. Continuous motion-based activity was recorded using tri-axial accelerometers at 12, 18, 24, and 36?months of age. At 36?months, participants were categorized into one of three outcome groups: ASD (n=19), ADHD Concerns (n=17), and Typically Developing (TD; n=77). Group differences in trajectories of motor activity were examined in structured and semistructured contexts. Associations with behaviors relevant to ASD, ADHD, and general development were also examined. RESULTS: In both structured and semistructured contexts, both the ASD and ADHD Concerns groups exhibited heightened activity relative to the TD group by 18?months; the ASD group exhibited higher activity than the ADHD Concerns group at 24-36?months in the structured context only. Attention/behavior regulation, nonverbal, and verbal development-but not social engagement-were differentially associated with objectively measured activity by outcome group across contexts. CONCLUSIONS: Overactivity may be a shared, rather than distinct, precursor of atypical development in infants/toddlers developing ASD and concerns for ADHD, emerging as early as 18?months. Group differences in overactivity may be context-specific and associated with different underlying mechanisms.
En ligne :	http://dx.doi.org/10.1111/jcpp.13504
Permalink :	https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=475