Gaze Response to Dyadic Bids at 2 Years Related to Outcomes at 3 Years in Autism Spectrum Disorders: A Subtyping Analysis / Daniel J. CAMPBELL in Journal of Autism and Developmental Disorders, 44-2 (February 2014)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 44-2 (February 2014) . - p.431-442 Titre : Gaze Response to Dyadic Bids at 2 Years Related to Outcomes at 3 Years in Autism Spectrum Disorders: A Subtyping Analysis Type de document : Texte imprimé et/ou numérique Auteurs : Daniel J. CAMPBELL, Auteur ; Frederick SHIC, Auteur ; Suzanne L. MACARI, Auteur ; Katarzyna CHAWARSKA, Auteur Article en page(s) : p.431-442 Langues : Anglais (eng) Mots-clés : Autism  Eye-tracking  Visual attention  Heterogeneity  Eye contact  Child-directed speech Index. décimale : PER Périodiques Résumé : Variability in attention towards direct gaze and child-directed speech may contribute to heterogeneity of clinical presentation in toddlers with autism spectrum disorders (ASD). To evaluate this hypothesis, we clustered sixty-five 20-month-old toddlers with ASD based on their visual responses to dyadic cues for engagement, identifying three subgroups. Subsequently, we compared social, language, and adaptive functioning of these subgroups at 3 years of age. The cluster displaying limited attention to social scenes in general exhibited poor outcome at 3 years; the cluster displaying good attention to the scene and to the speaker’s mouth was verbal and high functioning at 3 years. Analysis of visual responses to dyadic cues may provide a clinically meaningful approach to identifying early predictors of outcome. En ligne : http://dx.doi.org/10.1007/s10803-013-1885-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=223 [article] Gaze Response to Dyadic Bids at 2 Years Related to Outcomes at 3 Years in Autism Spectrum Disorders: A Subtyping Analysis [Texte imprimé et/ou numérique] / Daniel J. CAMPBELL, Auteur ; Frederick SHIC, Auteur ; Suzanne L. MACARI, Auteur ; Katarzyna CHAWARSKA, Auteur . - p.431-442. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 44-2 (February 2014) . - p.431-442 Mots-clés : Autism  Eye-tracking  Visual attention  Heterogeneity  Eye contact  Child-directed speech Index. décimale : PER Périodiques Résumé : Variability in attention towards direct gaze and child-directed speech may contribute to heterogeneity of clinical presentation in toddlers with autism spectrum disorders (ASD). To evaluate this hypothesis, we clustered sixty-five 20-month-old toddlers with ASD based on their visual responses to dyadic cues for engagement, identifying three subgroups. Subsequently, we compared social, language, and adaptive functioning of these subgroups at 3 years of age. The cluster displaying limited attention to social scenes in general exhibited poor outcome at 3 years; the cluster displaying good attention to the scene and to the speaker’s mouth was verbal and high functioning at 3 years. Analysis of visual responses to dyadic cues may provide a clinically meaningful approach to identifying early predictors of outcome. En ligne : http://dx.doi.org/10.1007/s10803-013-1885-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=223

Operationalizing atypical gaze in toddlers with autism spectrum disorders: a cohesion-based approach / Q. WANG in Molecular Autism, 9 (2018)  

Public ISBD [article]  inMolecular Autism > 9 (2018) . - 25p. Titre : Operationalizing atypical gaze in toddlers with autism spectrum disorders: a cohesion-based approach Type de document : Texte imprimé et/ou numérique Auteurs : Q. WANG, Auteur ; Daniel J. CAMPBELL, Auteur ; S. L. MACARI, Auteur ; Katarzyna CHAWARSKA, Auteur ; F. SHIC, Auteur Article en page(s) : 25p. Langues : Anglais (eng) Mots-clés : Attention  Autism Spectrum Disorder/diagnosis/physiopathology  Case-Control Studies  Child, Preschool  Female  Fixation, Ocular  Humans  Infant  Male  Social Behavior  Visual Perception  asd  Attentional synchrony  Atypicality  Autism  Cohesion  Eye tracking  Visual attention Index. décimale : PER Périodiques Résumé : Background: Multiple eye-tracking studies have highlighted the "atypical" nature of social attention in autism. However, it is unclear how "atypical" or "typical" should be quantified. Methods: We developed a method for identifying moments when members of a group looked at similar places (High-Cohesion Time Frames; HCTFs). We defined typicality as the proximity of gaze points to typically developing (TD) gaze points during TD HCTFs. Comparing toddlers with ASD (n = 112) to developmentally delayed (DD, n = 36) and TD (n = 163) toddlers during a video with Dyadic Bid, Sandwich-Making, Joint Attention, and Animated Toys conditions, we examined (a) individual typicality scores, (b) the relationship between typicality and symptom severity, and (c) HCTF distributions associated with each diagnostic group. Results: The ASD group had lower gaze typicality scores compared to the TD and DD groups in the Dyadic Bid and Sandwich-Making conditions but not during Animated Toys. The DD and TD groups did not differ in any condition. Correlational analyses indicated that higher typicality scores were associated with increased looking at pre-planned locations of the scene indexed by each experimental condition. In the ASD group, lower gaze typicality was associated with more severe autism symptoms. Examining ASD HCTFs, the gaze of toddlers with ASD was least cohesive during Dyadic Bid and most cohesive during Animated Toys. Conclusion: In contrast to non-ASD groups, toddlers with ASD show high cohesion during salient nonsocial events, suggesting that consistency in looking strategies may depend more on perceptual features. These findings are consequential for understanding individual differences in visual attention in ASD and for the design of more sensitive biomarker tasks for stratification, between-group differentiation, and measuring response to treatment. En ligne : https://dx.doi.org/10.1186/s13229-018-0211-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=371 [article] Operationalizing atypical gaze in toddlers with autism spectrum disorders: a cohesion-based approach [Texte imprimé et/ou numérique] / Q. WANG, Auteur ; Daniel J. CAMPBELL, Auteur ; S. L. MACARI, Auteur ; Katarzyna CHAWARSKA, Auteur ; F. SHIC, Auteur . - 25p. Langues : Anglais (eng) in Molecular Autism > 9 (2018) . - 25p. Mots-clés : Attention  Autism Spectrum Disorder/diagnosis/physiopathology  Case-Control Studies  Child, Preschool  Female  Fixation, Ocular  Humans  Infant  Male  Social Behavior  Visual Perception  asd  Attentional synchrony  Atypicality  Autism  Cohesion  Eye tracking  Visual attention Index. décimale : PER Périodiques Résumé : Background: Multiple eye-tracking studies have highlighted the "atypical" nature of social attention in autism. However, it is unclear how "atypical" or "typical" should be quantified. Methods: We developed a method for identifying moments when members of a group looked at similar places (High-Cohesion Time Frames; HCTFs). We defined typicality as the proximity of gaze points to typically developing (TD) gaze points during TD HCTFs. Comparing toddlers with ASD (n = 112) to developmentally delayed (DD, n = 36) and TD (n = 163) toddlers during a video with Dyadic Bid, Sandwich-Making, Joint Attention, and Animated Toys conditions, we examined (a) individual typicality scores, (b) the relationship between typicality and symptom severity, and (c) HCTF distributions associated with each diagnostic group. Results: The ASD group had lower gaze typicality scores compared to the TD and DD groups in the Dyadic Bid and Sandwich-Making conditions but not during Animated Toys. The DD and TD groups did not differ in any condition. Correlational analyses indicated that higher typicality scores were associated with increased looking at pre-planned locations of the scene indexed by each experimental condition. In the ASD group, lower gaze typicality was associated with more severe autism symptoms. Examining ASD HCTFs, the gaze of toddlers with ASD was least cohesive during Dyadic Bid and most cohesive during Animated Toys. Conclusion: In contrast to non-ASD groups, toddlers with ASD show high cohesion during salient nonsocial events, suggesting that consistency in looking strategies may depend more on perceptual features. These findings are consequential for understanding individual differences in visual attention in ASD and for the design of more sensitive biomarker tasks for stratification, between-group differentiation, and measuring response to treatment. En ligne : https://dx.doi.org/10.1186/s13229-018-0211-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=371

Temperamental markers in toddlers with autism spectrum disorder / Suzanne L. MACARI in Journal of Child Psychology and Psychiatry, 58-7 (July 2017)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 58-7 (July 2017) . - p.819-828 Titre : Temperamental markers in toddlers with autism spectrum disorder Type de document : Texte imprimé et/ou numérique Auteurs : Suzanne L. MACARI, Auteur ; Judah KOLLER, Auteur ; Daniel J. CAMPBELL, Auteur ; Katarzyna CHAWARSKA, Auteur Article en page(s) : p.819-828 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder  temperament Index. décimale : PER Périodiques Résumé : Background Although temperament has been recognized as an important contributor to childhood psychopathology, its role in emergent autism spectrum phenotypes is not well understood. This study examined whether toddlers with autism spectrum disorder (ASD) display temperamental vulnerabilities compared to toddlers with other developmental challenges, whether these characteristics are distinct from core autism symptoms, if they are stable over time, and if they contribute to social outcomes in preschool. Methods Parents of 165 toddlers with ASD, 58 nonverbal ability- and chronological age- (CA) matched developmentally delayed (DD) toddlers, and 92 CA-matched typically developing (TD) toddlers completed the Toddler Behavior Assessment Questionnaire-Supplemental (TBAQ-S) at 26 months (SD = 6; Time 1). TBAQ-S data were also available for a subset of toddlers with ASD (n = 126) at 43 months (SD = 9; Time 2). Results Compared to the DD and TD groups, toddlers with ASD exhibited vulnerabilities within the Effortful Control domain as well as the Surgency domain. They also displayed greater Negative Emotionality compared to TD peers. In the ASD group, temperamental characteristics were not concurrently related to autism severity or developmental level and individual differences were highly stable over time. Changes in Perceptual Sensitivity, Inhibitory Control, and Low-Intensity Pleasure from age 2 to 3.5 uniquely predicted autism symptom severity and adaptive social skill level at Time 2. Conclusions Temperamental vulnerabilities in toddlers with ASD are stable over time and involve attentional and behavioral control as well as affective reactivity. They contribute uniquely to social outcomes in preschool and are likely to signal risk for developing later maladaptive attentional, affective, and behavioral symptoms. Considering biologically based dimensions may shed light on noncore facets of the early ASD phenotype that are potentially relevant to the emergence of comorbid conditions later in childhood. En ligne : http://dx.doi.org/10.1111/jcpp.12710 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=316 [article] Temperamental markers in toddlers with autism spectrum disorder [Texte imprimé et/ou numérique] / Suzanne L. MACARI, Auteur ; Judah KOLLER, Auteur ; Daniel J. CAMPBELL, Auteur ; Katarzyna CHAWARSKA, Auteur . - p.819-828. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 58-7 (July 2017) . - p.819-828 Mots-clés : Autism spectrum disorder  temperament Index. décimale : PER Périodiques Résumé : Background Although temperament has been recognized as an important contributor to childhood psychopathology, its role in emergent autism spectrum phenotypes is not well understood. This study examined whether toddlers with autism spectrum disorder (ASD) display temperamental vulnerabilities compared to toddlers with other developmental challenges, whether these characteristics are distinct from core autism symptoms, if they are stable over time, and if they contribute to social outcomes in preschool. Methods Parents of 165 toddlers with ASD, 58 nonverbal ability- and chronological age- (CA) matched developmentally delayed (DD) toddlers, and 92 CA-matched typically developing (TD) toddlers completed the Toddler Behavior Assessment Questionnaire-Supplemental (TBAQ-S) at 26 months (SD = 6; Time 1). TBAQ-S data were also available for a subset of toddlers with ASD (n = 126) at 43 months (SD = 9; Time 2). Results Compared to the DD and TD groups, toddlers with ASD exhibited vulnerabilities within the Effortful Control domain as well as the Surgency domain. They also displayed greater Negative Emotionality compared to TD peers. In the ASD group, temperamental characteristics were not concurrently related to autism severity or developmental level and individual differences were highly stable over time. Changes in Perceptual Sensitivity, Inhibitory Control, and Low-Intensity Pleasure from age 2 to 3.5 uniquely predicted autism symptom severity and adaptive social skill level at Time 2. Conclusions Temperamental vulnerabilities in toddlers with ASD are stable over time and involve attentional and behavioral control as well as affective reactivity. They contribute uniquely to social outcomes in preschool and are likely to signal risk for developing later maladaptive attentional, affective, and behavioral symptoms. Considering biologically based dimensions may shed light on noncore facets of the early ASD phenotype that are potentially relevant to the emergence of comorbid conditions later in childhood. En ligne : http://dx.doi.org/10.1111/jcpp.12710 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=316

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