Centre d'Information et de documentation du CRA Rhône-Alpes
CRA
Informations pratiques
-
Adresse
Centre d'information et de documentation
du CRA Rhône-Alpes
Centre Hospitalier le Vinatier
bât 211
95, Bd Pinel
69678 Bron CedexHoraires
Lundi au Vendredi
9h00-12h00 13h30-16h00Contact
Tél: +33(0)4 37 91 54 65
Mail
Fax: +33(0)4 37 91 54 37
-
Résultat de la recherche
2 recherche sur le mot-clé 'Novelty'
Affiner la recherche Générer le flux rss de la recherche
Partager le résultat de cette recherche Faire une suggestion
Comparing biobehavioral profiles across two social stress paradigms in children with and without autism spectrum disorders / Blythe A. CORBETT in Molecular Autism, (November 2012)
[article]
Titre : Comparing biobehavioral profiles across two social stress paradigms in children with and without autism spectrum disorders Type de document : Texte imprimé et/ou numérique Auteurs : Blythe A. CORBETT, Auteur ; Clayton W. SCHUPP, Auteur ; Kimberly E. LANNI, Auteur Année de publication : 2012 Article en page(s) : 10 p. Langues : Anglais (eng) Mots-clés : Cortisol Autism Stress Novelty Peer Age Distribution Index. décimale : PER Périodiques Résumé : BACKGROUND:Autism spectrum disorders (ASD) are defined by impairment in reciprocal social interaction and flexible adaptation to the environment. This study compared physiological stress in children with and without ASD exposed to two social stress protocols. We hypothesized that the ASD group would show heightened initial and enduring cortisol levels to the social stressors, which would be moderated by age and intelligence.METHODS:Twenty-seven children with ASD and 32 with typical development (TYP) completed a standardized social-evaluative performance task and a validated paradigm of social play with peers. Physiological stress was measured by salivary cortisol at nine time points. Statistical approaches included repeated-measures linear mixed models and correlation analyses.RESULTS:The average cortisol level of both groups during initial exposure to social situations was significantly greater than baseline levels (ASD, P = 0.018; TYP, P = 0.006). Stress responsivity was significantly different between the groups; the TYP group showed a significant reduction in cortisol over time (P = 0.023), whereas the ASD group maintained an elevated cortisol level (P 0.05). The ASD group evidenced greater variability in between-group, within-group and intra-individual analyses. Age was a positive moderator of stress for the ASD group (P = 0.047), whereas IQ was a negative moderator for the TYP group (P = 0.061).CONCLUSIONS:Initial stress to novel social scenarios is idiosyncratic and predictive of subsequent exposure. Amidst significant variability in cortisol, children with ASD show enhanced and sustained social stress that increases with age. Developmental and cognitive factors differentially moderate stress in children with ASD and TYP, respectively. A model of neuroendocrine reactivity is proposed. En ligne : http://dx.doi.org/10.1186/2040-2392-3-13 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=202
in Molecular Autism > (November 2012) . - 10 p.[article] Comparing biobehavioral profiles across two social stress paradigms in children with and without autism spectrum disorders [Texte imprimé et/ou numérique] / Blythe A. CORBETT, Auteur ; Clayton W. SCHUPP, Auteur ; Kimberly E. LANNI, Auteur . - 2012 . - 10 p.
Langues : Anglais (eng)
in Molecular Autism > (November 2012) . - 10 p.
Mots-clés : Cortisol Autism Stress Novelty Peer Age Distribution Index. décimale : PER Périodiques Résumé : BACKGROUND:Autism spectrum disorders (ASD) are defined by impairment in reciprocal social interaction and flexible adaptation to the environment. This study compared physiological stress in children with and without ASD exposed to two social stress protocols. We hypothesized that the ASD group would show heightened initial and enduring cortisol levels to the social stressors, which would be moderated by age and intelligence.METHODS:Twenty-seven children with ASD and 32 with typical development (TYP) completed a standardized social-evaluative performance task and a validated paradigm of social play with peers. Physiological stress was measured by salivary cortisol at nine time points. Statistical approaches included repeated-measures linear mixed models and correlation analyses.RESULTS:The average cortisol level of both groups during initial exposure to social situations was significantly greater than baseline levels (ASD, P = 0.018; TYP, P = 0.006). Stress responsivity was significantly different between the groups; the TYP group showed a significant reduction in cortisol over time (P = 0.023), whereas the ASD group maintained an elevated cortisol level (P 0.05). The ASD group evidenced greater variability in between-group, within-group and intra-individual analyses. Age was a positive moderator of stress for the ASD group (P = 0.047), whereas IQ was a negative moderator for the TYP group (P = 0.061).CONCLUSIONS:Initial stress to novel social scenarios is idiosyncratic and predictive of subsequent exposure. Amidst significant variability in cortisol, children with ASD show enhanced and sustained social stress that increases with age. Developmental and cognitive factors differentially moderate stress in children with ASD and TYP, respectively. A model of neuroendocrine reactivity is proposed. En ligne : http://dx.doi.org/10.1186/2040-2392-3-13 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=202 Use of Mutual Exclusivity and its Relationship to Language Ability in Toddlers with Autism Spectrum Disorder / Janine MATHEE-SCOTT in Journal of Autism and Developmental Disorders, 52-10 (October 2022)
[article]
Titre : Use of Mutual Exclusivity and its Relationship to Language Ability in Toddlers with Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : Janine MATHEE-SCOTT, Auteur ; Caroline LARSON, Auteur ; Courtney E. VENKER, Auteur ; Ron POMPER, Auteur ; Jan EDWARDS, Auteur ; Jenny SAFFRAN, Auteur ; Susan ELLIS WEISMER, Auteur Article en page(s) : p.4528-4539 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder Language development Learning mechanisms Mutual exclusivity Novelty Referent selection Index. décimale : PER Périodiques Résumé : To efficiently learn new words, children use constraints such as mutual exclusivity (ME) to narrow the search for potential referents. The current study investigated the use of ME in toddlers with autism spectrum disorder (ASD) and neurotypical (NT) peers matched on nonverbal cognition. Thirty-two toddlers with ASD and 26 NT toddlers participated in a looking-while-listening task. Images of novel and familiar objects were presented along with a novel or familiar label. Overall, toddlers with ASD showed less efficient looking toward a novel referent when a novel label was presented compared to NT toddlers, controlling for age and familiar word knowledge. However, toddlers with ASD and higher language ability demonstrated more robust use of ME than those with lower language ability. En ligne : http://dx.doi.org/10.1007/s10803-021-05321-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=486
in Journal of Autism and Developmental Disorders > 52-10 (October 2022) . - p.4528-4539[article] Use of Mutual Exclusivity and its Relationship to Language Ability in Toddlers with Autism Spectrum Disorder [Texte imprimé et/ou numérique] / Janine MATHEE-SCOTT, Auteur ; Caroline LARSON, Auteur ; Courtney E. VENKER, Auteur ; Ron POMPER, Auteur ; Jan EDWARDS, Auteur ; Jenny SAFFRAN, Auteur ; Susan ELLIS WEISMER, Auteur . - p.4528-4539.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 52-10 (October 2022) . - p.4528-4539
Mots-clés : Autism spectrum disorder Language development Learning mechanisms Mutual exclusivity Novelty Referent selection Index. décimale : PER Périodiques Résumé : To efficiently learn new words, children use constraints such as mutual exclusivity (ME) to narrow the search for potential referents. The current study investigated the use of ME in toddlers with autism spectrum disorder (ASD) and neurotypical (NT) peers matched on nonverbal cognition. Thirty-two toddlers with ASD and 26 NT toddlers participated in a looking-while-listening task. Images of novel and familiar objects were presented along with a novel or familiar label. Overall, toddlers with ASD showed less efficient looking toward a novel referent when a novel label was presented compared to NT toddlers, controlling for age and familiar word knowledge. However, toddlers with ASD and higher language ability demonstrated more robust use of ME than those with lower language ability. En ligne : http://dx.doi.org/10.1007/s10803-021-05321-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=486