Anterior EEG Asymmetry and the Modifier Model of Autism / Courtney BURNETTE in Journal of Autism and Developmental Disorders, 41-8 (August 2011)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 41-8 (August 2011) . - p.1113-1124 Titre : Anterior EEG Asymmetry and the Modifier Model of Autism Type de document : Texte imprimé et/ou numérique Auteurs : Courtney BURNETTE, Auteur ; Heather A. HENDERSON, Auteur ; Anne Pradella INGE, Auteur ; Nicole E. ZAHKA, Auteur ; Caley B. SCHWARTZ, Auteur ; Peter C. MUNDY, Auteur Année de publication : 2011 Article en page(s) : p.1113-1124 Langues : Anglais (eng) Mots-clés : EEG asymmetry  Social motivation  Individual differences Index. décimale : PER Périodiques Résumé : Individual differences in the expression of autism complicate research on the nature and treatment of this disorder. In the Modifier Model of Autism (Mundy et al. 2007), we proposed that individual differences in autism may result not only from syndrome specific causal processes, but also from variability in generic, non-syndrome specific modifier processes that affect the social and emotional development of all people. One study supporting this model found that measures of resting anterior EEG asymmetry, a measure reflecting complex brain processes associated with generic individual differences in approach and avoidance motivation, may help explain differences in the expression of autism in children without intellectual disabilities (Sutton et al. 2005). In the current study, we partially replicated the observation that children with autism who exhibited a pattern of left frontal EEG asymmetry tended to display milder levels of social symptoms, although in the current sample this pattern applied only to HFA children with relatively lower verbal IQs. New observations indicated that left frontal EEG asymmetry was also associated with retrospective parent reports of significantly later age of onset of symptoms, but also higher levels of self-reported outward expressions of anger as well as symptoms of obsessive compulsive disorder in school-age higher functioning children with ASD. Therefore, the results of this study provide a new and fully independent set of observations, which indicate that individual differences in anterior EEG asymmetry may significantly moderate the expression and developmental course of autism. This observation may have clinical implications for identifying meaningful diagnostic sub-groups among children with autism. En ligne : http://dx.doi.org/10.1007/s10803-010-1138-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=132 [article] Anterior EEG Asymmetry and the Modifier Model of Autism [Texte imprimé et/ou numérique] / Courtney BURNETTE, Auteur ; Heather A. HENDERSON, Auteur ; Anne Pradella INGE, Auteur ; Nicole E. ZAHKA, Auteur ; Caley B. SCHWARTZ, Auteur ; Peter C. MUNDY, Auteur . - 2011 . - p.1113-1124. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 41-8 (August 2011) . - p.1113-1124 Mots-clés : EEG asymmetry  Social motivation  Individual differences Index. décimale : PER Périodiques Résumé : Individual differences in the expression of autism complicate research on the nature and treatment of this disorder. In the Modifier Model of Autism (Mundy et al. 2007), we proposed that individual differences in autism may result not only from syndrome specific causal processes, but also from variability in generic, non-syndrome specific modifier processes that affect the social and emotional development of all people. One study supporting this model found that measures of resting anterior EEG asymmetry, a measure reflecting complex brain processes associated with generic individual differences in approach and avoidance motivation, may help explain differences in the expression of autism in children without intellectual disabilities (Sutton et al. 2005). In the current study, we partially replicated the observation that children with autism who exhibited a pattern of left frontal EEG asymmetry tended to display milder levels of social symptoms, although in the current sample this pattern applied only to HFA children with relatively lower verbal IQs. New observations indicated that left frontal EEG asymmetry was also associated with retrospective parent reports of significantly later age of onset of symptoms, but also higher levels of self-reported outward expressions of anger as well as symptoms of obsessive compulsive disorder in school-age higher functioning children with ASD. Therefore, the results of this study provide a new and fully independent set of observations, which indicate that individual differences in anterior EEG asymmetry may significantly moderate the expression and developmental course of autism. This observation may have clinical implications for identifying meaningful diagnostic sub-groups among children with autism. En ligne : http://dx.doi.org/10.1007/s10803-010-1138-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=132

Self-referenced memory, social cognition, and symptom presentation in autism / Heather A. HENDERSON in Journal of Child Psychology and Psychiatry, 50-7 (July 2009)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 50-7 (July 2009) . - p.853-861 Titre : Self-referenced memory, social cognition, and symptom presentation in autism Type de document : Texte imprimé et/ou numérique Auteurs : Heather A. HENDERSON, Auteur ; Peter C. MUNDY, Auteur ; Nicole KOJKOWSKI, Auteur ; Caley B. SCHWARTZ, Auteur ; Anne Pradella INGE, Auteur ; Nicole E. ZAHKA, Auteur ; Drew C. COMAN, Auteur ; Camilla M. HILEMAN, Auteur Année de publication : 2009 Article en page(s) : p.853-861 Langues : Anglais (eng) Mots-clés : Autistic-disorder self-referenced-memory social-cognition social-symptoms Index. décimale : PER Périodiques Résumé : Background: We examined performance on a self-referenced memory (SRM) task for higher-functioning children with autism (HFA) and a matched comparison group. SRM performance was examined in relation to symptom severity and social cognitive tests of mentalizing. Method: Sixty-two children (31 HFA, 31 comparison; 8–16 years) completed a SRM task in which they read a list of words and decided whether the word described something about them, something about Harry Potter, or contained a certain number of letters. They then identified words that were familiar from a longer list. Dependent measures were memory performance (d') in each of the three encoding conditions as well as a self-memory bias score (d' self–d' other). Children completed The Strange Stories Task and The Children's Eyes Test as measures of social cognition. Parents completed the SCQ and ASSQ as measures of symptom severity. Results: Children in the comparison sample showed the standard SRM effect in which they recognized significantly more self-referenced words relative to words in the other-referenced and letter conditions. In contrast, HFA children showed comparable rates of recognition for self- and other-referenced words. For all children, SRM performance improved with age and enhanced SRM performance was related to lower levels of social problems. These associations were not accounted for by performance on the mentalizing tasks. Conclusions: Children with HFA did not show the standard enhanced processing of self- vs. other-relevant information. Individual differences in the tendency to preferentially process self-relevant information may be associated with social cognitive processes that serve to modify the expression of social symptoms in children with autism. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2008.02059.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=771 [article] Self-referenced memory, social cognition, and symptom presentation in autism [Texte imprimé et/ou numérique] / Heather A. HENDERSON, Auteur ; Peter C. MUNDY, Auteur ; Nicole KOJKOWSKI, Auteur ; Caley B. SCHWARTZ, Auteur ; Anne Pradella INGE, Auteur ; Nicole E. ZAHKA, Auteur ; Drew C. COMAN, Auteur ; Camilla M. HILEMAN, Auteur . - 2009 . - p.853-861. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 50-7 (July 2009) . - p.853-861 Mots-clés : Autistic-disorder self-referenced-memory social-cognition social-symptoms Index. décimale : PER Périodiques Résumé : Background: We examined performance on a self-referenced memory (SRM) task for higher-functioning children with autism (HFA) and a matched comparison group. SRM performance was examined in relation to symptom severity and social cognitive tests of mentalizing. Method: Sixty-two children (31 HFA, 31 comparison; 8–16 years) completed a SRM task in which they read a list of words and decided whether the word described something about them, something about Harry Potter, or contained a certain number of letters. They then identified words that were familiar from a longer list. Dependent measures were memory performance (d') in each of the three encoding conditions as well as a self-memory bias score (d' self–d' other). Children completed The Strange Stories Task and The Children's Eyes Test as measures of social cognition. Parents completed the SCQ and ASSQ as measures of symptom severity. Results: Children in the comparison sample showed the standard SRM effect in which they recognized significantly more self-referenced words relative to words in the other-referenced and letter conditions. In contrast, HFA children showed comparable rates of recognition for self- and other-referenced words. For all children, SRM performance improved with age and enhanced SRM performance was related to lower levels of social problems. These associations were not accounted for by performance on the mentalizing tasks. Conclusions: Children with HFA did not show the standard enhanced processing of self- vs. other-relevant information. Individual differences in the tendency to preferentially process self-relevant information may be associated with social cognitive processes that serve to modify the expression of social symptoms in children with autism. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2008.02059.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=771

Social competence with an unfamiliar peer in children and adolescents with high functioning autism: Measurement and individual differences / Lauren V. USHER in Research in Autism Spectrum Disorders, 17 (September 2015)  

Public ISBD [article]  inResearch in Autism Spectrum Disorders > 17 (September 2015) . - p.25-39 Titre : Social competence with an unfamiliar peer in children and adolescents with high functioning autism: Measurement and individual differences Type de document : Texte imprimé et/ou numérique Auteurs : Lauren V. USHER, Auteur ; Catherine A. BURROWS, Auteur ; Caley B. SCHWARTZ, Auteur ; Heather A. HENDERSON, Auteur Année de publication : 2015 Article en page(s) : p.25-39 Langues : Anglais (eng) Mots-clés : High functioning autism  Social competence  Peer interaction  Initiative  Reciprocity  Self-monitoring Index. décimale : PER Périodiques Résumé : Abstract Children and adolescents with high functioning autism (HFA) display heterogeneity in social competence, which may be particularly evident during interactions with unfamiliar peers. The goal of this study was to examine predictors of social competence variability during an unfamiliar peer interaction. Thirty-nine participants with HFA and 39 age-, gender- and IQ-matched comparison participants were observed during dyadic laboratory interactions and detailed behavioral coding revealed three social competence dimensions: social initiative, social reciprocity, and social self-monitoring. Participants with HFA displayed higher social initiative but lower reciprocity than comparison participants. For participants with HFA, theory of mind was positively associated with observed initiative. For COM participants, social anxiety was negatively associated with reciprocity. However, for HFA participants, there was a quadratic relation between parent-reported social anxiety and observed reciprocity, demonstrating that low and high levels of anxiety were associated with low reciprocity. Results demonstrated the utility of our behavioral coding scheme as a valid assessment of social competence for children and adolescents with and without HFA. The curvilinear association between social anxiety and reciprocity highlights the importance of examining nonlinear relations in individuals with HFA, and emphasizes that discrete profiles of social anxiety in individuals with HFA may necessitate different treatment options. En ligne : http://dx.doi.org/10.1016/j.rasd.2015.05.005 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=263 [article] Social competence with an unfamiliar peer in children and adolescents with high functioning autism: Measurement and individual differences [Texte imprimé et/ou numérique] / Lauren V. USHER, Auteur ; Catherine A. BURROWS, Auteur ; Caley B. SCHWARTZ, Auteur ; Heather A. HENDERSON, Auteur . - 2015 . - p.25-39. Langues : Anglais (eng) in Research in Autism Spectrum Disorders > 17 (September 2015) . - p.25-39 Mots-clés : High functioning autism  Social competence  Peer interaction  Initiative  Reciprocity  Self-monitoring Index. décimale : PER Périodiques Résumé : Abstract Children and adolescents with high functioning autism (HFA) display heterogeneity in social competence, which may be particularly evident during interactions with unfamiliar peers. The goal of this study was to examine predictors of social competence variability during an unfamiliar peer interaction. Thirty-nine participants with HFA and 39 age-, gender- and IQ-matched comparison participants were observed during dyadic laboratory interactions and detailed behavioral coding revealed three social competence dimensions: social initiative, social reciprocity, and social self-monitoring. Participants with HFA displayed higher social initiative but lower reciprocity than comparison participants. For participants with HFA, theory of mind was positively associated with observed initiative. For COM participants, social anxiety was negatively associated with reciprocity. However, for HFA participants, there was a quadratic relation between parent-reported social anxiety and observed reciprocity, demonstrating that low and high levels of anxiety were associated with low reciprocity. Results demonstrated the utility of our behavioral coding scheme as a valid assessment of social competence for children and adolescents with and without HFA. The curvilinear association between social anxiety and reciprocity highlights the importance of examining nonlinear relations in individuals with HFA, and emphasizes that discrete profiles of social anxiety in individuals with HFA may necessitate different treatment options. En ligne : http://dx.doi.org/10.1016/j.rasd.2015.05.005 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=263

Supporting the Spectrum Hypothesis: Self-Reported Temperament in Children and Adolescents with High Functioning Autism / Catherine A. BURROWS in Journal of Autism and Developmental Disorders, 46-4 (April 2016)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 46-4 (April 2016) . - p.1184-1195 Titre : Supporting the Spectrum Hypothesis: Self-Reported Temperament in Children and Adolescents with High Functioning Autism Type de document : Texte imprimé et/ou numérique Auteurs : Catherine A. BURROWS, Auteur ; Lauren V. USHER, Auteur ; Caley B. SCHWARTZ, Auteur ; Peter C. MUNDY, Auteur ; Heather A. HENDERSON, Auteur Année de publication : 2016 Article en page(s) : p.1184-1195 Langues : Anglais (eng) Mots-clés : High-functioning autism  Temperament  Spectrum hypothesis  Self-report Index. décimale : PER Périodiques Résumé : This study tested the spectrum hypothesis, which posits that children and adolescents with high functioning autism (HFA) differ quantitatively but not qualitatively from typically developing peers on self-reported temperament. Temperament refers to early-appearing, relatively stable behavioral and emotional tendencies, which relate to maladaptive behaviors across clinical populations. Quantitatively, participants with HFA (N = 104, aged 10–16) self-reported less surgency and more negative affect but did not differ from comparison participants (N = 94, aged 10–16) on effortful control or affiliation. Qualitatively, groups demonstrated comparable reliability of self-reported temperament and associations between temperament and parent-reported behavior problems. These findings support the spectrum hypothesis, highlighting the utility of self-report temperament measures for understanding individual differences in comorbid behavior problems among children and adolescents with HFA. En ligne : http://dx.doi.org/10.1007/s10803-015-2653-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=284 [article] Supporting the Spectrum Hypothesis: Self-Reported Temperament in Children and Adolescents with High Functioning Autism [Texte imprimé et/ou numérique] / Catherine A. BURROWS, Auteur ; Lauren V. USHER, Auteur ; Caley B. SCHWARTZ, Auteur ; Peter C. MUNDY, Auteur ; Heather A. HENDERSON, Auteur . - 2016 . - p.1184-1195. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 46-4 (April 2016) . - p.1184-1195 Mots-clés : High-functioning autism  Temperament  Spectrum hypothesis  Self-report Index. décimale : PER Périodiques Résumé : This study tested the spectrum hypothesis, which posits that children and adolescents with high functioning autism (HFA) differ quantitatively but not qualitatively from typically developing peers on self-reported temperament. Temperament refers to early-appearing, relatively stable behavioral and emotional tendencies, which relate to maladaptive behaviors across clinical populations. Quantitatively, participants with HFA (N = 104, aged 10–16) self-reported less surgency and more negative affect but did not differ from comparison participants (N = 94, aged 10–16) on effortful control or affiliation. Qualitatively, groups demonstrated comparable reliability of self-reported temperament and associations between temperament and parent-reported behavior problems. These findings support the spectrum hypothesis, highlighting the utility of self-report temperament measures for understanding individual differences in comorbid behavior problems among children and adolescents with HFA. En ligne : http://dx.doi.org/10.1007/s10803-015-2653-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=284

Temperament as a Predictor of Symptomotology and Adaptive Functioning in Adolescents with High-Functioning Autism / Caley B. SCHWARTZ in Journal of Autism and Developmental Disorders, 39-6 (June 2009)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 39-6 (June 2009) . - p.842-855 Titre : Temperament as a Predictor of Symptomotology and Adaptive Functioning in Adolescents with High-Functioning Autism Type de document : Texte imprimé et/ou numérique Auteurs : Caley B. SCHWARTZ, Auteur ; Peter C. MUNDY, Auteur ; Nicole KOJKOWSKI, Auteur ; Heather A. HENDERSON, Auteur ; Anne Pradella INGE, Auteur ; Nicole E. ZAHKA, Auteur ; Drew C. COMAN, Auteur ; Camilla M. HILEMAN, Auteur Année de publication : 2009 Article en page(s) : p.842-855 Langues : Anglais (eng) Mots-clés : High-functioning-autism Temperament Symptomology Social-emotional-functioning Social-skills Index. décimale : PER Périodiques Résumé : Variation in temperament is characteristic of all people but is rarely studied as a predictor of individual differences among individuals with autism. Relative to a matched comparison sample, adolescents with High-Functioning Autism (HFA) reported lower levels of Surgency and higher levels of Negative Affectivity. Variability in temperament predicted symptomotology, social skills, and social-emotional outcomes differently for individuals with HFA than for the comparison sample. This study is unique in that temperament was measured by self-report, while all outcome measures were reported by parents. The broader implications of this study suggest that by identifying individual variability in constructs, such as temperament, that may influence adaptive functioning, interventions may be developed to target these constructs and increase the likelihood that individuals with HFA will achieve more adaptive life outcomes. En ligne : http://dx.doi.org/10.1007/s10803-009-0690-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=758 [article] Temperament as a Predictor of Symptomotology and Adaptive Functioning in Adolescents with High-Functioning Autism [Texte imprimé et/ou numérique] / Caley B. SCHWARTZ, Auteur ; Peter C. MUNDY, Auteur ; Nicole KOJKOWSKI, Auteur ; Heather A. HENDERSON, Auteur ; Anne Pradella INGE, Auteur ; Nicole E. ZAHKA, Auteur ; Drew C. COMAN, Auteur ; Camilla M. HILEMAN, Auteur . - 2009 . - p.842-855. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 39-6 (June 2009) . - p.842-855 Mots-clés : High-functioning-autism Temperament Symptomology Social-emotional-functioning Social-skills Index. décimale : PER Périodiques Résumé : Variation in temperament is characteristic of all people but is rarely studied as a predictor of individual differences among individuals with autism. Relative to a matched comparison sample, adolescents with High-Functioning Autism (HFA) reported lower levels of Surgency and higher levels of Negative Affectivity. Variability in temperament predicted symptomotology, social skills, and social-emotional outcomes differently for individuals with HFA than for the comparison sample. This study is unique in that temperament was measured by self-report, while all outcome measures were reported by parents. The broader implications of this study suggest that by identifying individual variability in constructs, such as temperament, that may influence adaptive functioning, interventions may be developed to target these constructs and increase the likelihood that individuals with HFA will achieve more adaptive life outcomes. En ligne : http://dx.doi.org/10.1007/s10803-009-0690-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=758

The Costs and Benefits of Self-monitoring for Higher Functioning Children and Adolescents with Autism / Heather A. HENDERSON in Journal of Autism and Developmental Disorders, 45-2 (February 2015)  

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