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Détail de l'auteur
Auteur Stelios GEORGIADES |
Documents disponibles écrits par cet auteur (50)
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The Influence of Bilingual Language Exposure on the Narrative, Social and Pragmatic Abilities of School-Aged Children on the Autism Spectrum / Stefano REZZONICO ; Terry BENNETT ; Eric DUKU ; Stelios GEORGIADES ; Connor KERNS ; Pat MIRENDA ; Annie RICHARD ; Isabel M. SMITH ; Peter SZATMARI ; Tracy VAILLANCOURT ; Charlotte WADDELL ; Anat ZAIDMAN-ZAIT ; Lonnie ZWAIGENBAUM ; Mayada ELSABBAGH in Journal of Autism and Developmental Disorders, 53-12 (December 2023)
[article]
Titre : The Influence of Bilingual Language Exposure on the Narrative, Social and Pragmatic Abilities of School-Aged Children on the Autism Spectrum Type de document : Texte imprimé et/ou numérique Auteurs : Stefano REZZONICO, Auteur ; Terry BENNETT, Auteur ; Eric DUKU, Auteur ; Stelios GEORGIADES, Auteur ; Connor KERNS, Auteur ; Pat MIRENDA, Auteur ; Annie RICHARD, Auteur ; Isabel M. SMITH, Auteur ; Peter SZATMARI, Auteur ; Tracy VAILLANCOURT, Auteur ; Charlotte WADDELL, Auteur ; Anat ZAIDMAN-ZAIT, Auteur ; Lonnie ZWAIGENBAUM, Auteur ; Mayada ELSABBAGH, Auteur Article en page(s) : p.4577-4590 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : We examined the narrative abilities of bilingual and monolingual children on the autism spectrum (AS), whether bilinguals presented stronger social and pragmatic language abilities compared to monolinguals, and the link between narrative, social, and pragmatic language abilities. En ligne : https://doi.org/10.1007/s10803-022-05678-w Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=515
in Journal of Autism and Developmental Disorders > 53-12 (December 2023) . - p.4577-4590[article] The Influence of Bilingual Language Exposure on the Narrative, Social and Pragmatic Abilities of School-Aged Children on the Autism Spectrum [Texte imprimé et/ou numérique] / Stefano REZZONICO, Auteur ; Terry BENNETT, Auteur ; Eric DUKU, Auteur ; Stelios GEORGIADES, Auteur ; Connor KERNS, Auteur ; Pat MIRENDA, Auteur ; Annie RICHARD, Auteur ; Isabel M. SMITH, Auteur ; Peter SZATMARI, Auteur ; Tracy VAILLANCOURT, Auteur ; Charlotte WADDELL, Auteur ; Anat ZAIDMAN-ZAIT, Auteur ; Lonnie ZWAIGENBAUM, Auteur ; Mayada ELSABBAGH, Auteur . - p.4577-4590.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 53-12 (December 2023) . - p.4577-4590
Index. décimale : PER Périodiques Résumé : We examined the narrative abilities of bilingual and monolingual children on the autism spectrum (AS), whether bilinguals presented stronger social and pragmatic language abilities compared to monolinguals, and the link between narrative, social, and pragmatic language abilities. En ligne : https://doi.org/10.1007/s10803-022-05678-w Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=515 Trajectory research in children with an autism diagnosis: A scoping review / Stephen J. GENTLES in Autism, 28-3 (March 2024)
[article]
Titre : Trajectory research in children with an autism diagnosis: A scoping review Type de document : Texte imprimé et/ou numérique Auteurs : Stephen J. GENTLES, Auteur ; Elise C. NG-CORDELL, Auteur ; Michelle C. HUNSCHE, Auteur ; Alana J. MCVEY, Auteur ; E. Dimitra BEDNAR, Auteur ; Michael G. DEGROOTE, Auteur ; Yun-Ju CHEN, Auteur ; Eric DUKU, Auteur ; Connor M. KERNS, Auteur ; Laura BANFIELD, Auteur ; Peter SZATMARI, Auteur ; Stelios GEORGIADES, Auteur Article en page(s) : p.540-564 Langues : Anglais (eng) Mots-clés : autism child development longitudinal research scoping review trajectory studies Index. décimale : PER Périodiques Résumé : Researchers increasingly employ longitudinal trajectory methods to understand developmental pathways of people on the autism spectrum across the lifespan. By assessing developmental or health-related outcome domains at three or more timepoints, trajectory studies can characterize their shape and varying rates of change over time. The purpose of this scoping review was to identify and summarize the published breadth of research that uses a trajectory study design to examine development in children (to age 18?years) diagnosed with autism. Using a systematic search and screening procedure, 103 studies were included. This review summarizes methodological characteristics across studies including the varying statistical approaches used. A series of figures maps where published research is available across 10 outcome domains and the ages over which children have been followed. Evidence gaps, informed by the perspectives of the autistic and caregiver stakeholders that were engaged in this review, are discussed. We recommend that future trajectory research addresses the absence of studies from low- and middle-income countries, considers longitudinal assessment of outcome domains that caregivers and autistic people consider meaningful, and plans follow-up periods with assessment timepoints that cover the gaps in ages where more outcome-specific data are needed. Lay Abstract The types of outcomes studied in children on the autism spectrum include clinical characteristics, such as social functioning, communication, language, or autism symptoms. Research that measures these outcomes at multiple timepoints is useful to improve our understanding of what to expect as children develop. In trajectory studies, researchers assess outcomes at three or more timepoints. This method has advantages over two-timepoint studies because it allows researchers to describe changes in the speed of development, such as accelerations, plateaus, or slowdowns. We identified and reviewed 103 published trajectory studies in children (to age 18?years) with an autism diagnosis. Importantly, we did not include studies of treatments or their effects, nor did we summarize the results of studies. Instead, this review summarizes the characteristics of the available published research, including the methods used, the many different outcomes that have been studied over time and the ages over which they have been studied. This summary may be of interest to autistic people and caregivers (parents) who want to know about the existence of research that provides answers about what to expect during an autistic child?s development. We have recommended that future trajectory research efforts try to make up for the lack of studies from low- and middle-income countries; that more attention is given to the following outcomes that are meaningful to caregivers and autistic people; and to try to fill in the age gaps where more outcome-specific data are needed. En ligne : https://dx.doi.org/10.1177/13623613231170280 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=523
in Autism > 28-3 (March 2024) . - p.540-564[article] Trajectory research in children with an autism diagnosis: A scoping review [Texte imprimé et/ou numérique] / Stephen J. GENTLES, Auteur ; Elise C. NG-CORDELL, Auteur ; Michelle C. HUNSCHE, Auteur ; Alana J. MCVEY, Auteur ; E. Dimitra BEDNAR, Auteur ; Michael G. DEGROOTE, Auteur ; Yun-Ju CHEN, Auteur ; Eric DUKU, Auteur ; Connor M. KERNS, Auteur ; Laura BANFIELD, Auteur ; Peter SZATMARI, Auteur ; Stelios GEORGIADES, Auteur . - p.540-564.
Langues : Anglais (eng)
in Autism > 28-3 (March 2024) . - p.540-564
Mots-clés : autism child development longitudinal research scoping review trajectory studies Index. décimale : PER Périodiques Résumé : Researchers increasingly employ longitudinal trajectory methods to understand developmental pathways of people on the autism spectrum across the lifespan. By assessing developmental or health-related outcome domains at three or more timepoints, trajectory studies can characterize their shape and varying rates of change over time. The purpose of this scoping review was to identify and summarize the published breadth of research that uses a trajectory study design to examine development in children (to age 18?years) diagnosed with autism. Using a systematic search and screening procedure, 103 studies were included. This review summarizes methodological characteristics across studies including the varying statistical approaches used. A series of figures maps where published research is available across 10 outcome domains and the ages over which children have been followed. Evidence gaps, informed by the perspectives of the autistic and caregiver stakeholders that were engaged in this review, are discussed. We recommend that future trajectory research addresses the absence of studies from low- and middle-income countries, considers longitudinal assessment of outcome domains that caregivers and autistic people consider meaningful, and plans follow-up periods with assessment timepoints that cover the gaps in ages where more outcome-specific data are needed. Lay Abstract The types of outcomes studied in children on the autism spectrum include clinical characteristics, such as social functioning, communication, language, or autism symptoms. Research that measures these outcomes at multiple timepoints is useful to improve our understanding of what to expect as children develop. In trajectory studies, researchers assess outcomes at three or more timepoints. This method has advantages over two-timepoint studies because it allows researchers to describe changes in the speed of development, such as accelerations, plateaus, or slowdowns. We identified and reviewed 103 published trajectory studies in children (to age 18?years) with an autism diagnosis. Importantly, we did not include studies of treatments or their effects, nor did we summarize the results of studies. Instead, this review summarizes the characteristics of the available published research, including the methods used, the many different outcomes that have been studied over time and the ages over which they have been studied. This summary may be of interest to autistic people and caregivers (parents) who want to know about the existence of research that provides answers about what to expect during an autistic child?s development. We have recommended that future trajectory research efforts try to make up for the lack of studies from low- and middle-income countries; that more attention is given to the following outcomes that are meaningful to caregivers and autistic people; and to try to fill in the age gaps where more outcome-specific data are needed. En ligne : https://dx.doi.org/10.1177/13623613231170280 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=523 Transdiagnostic Patterns of Sensory Processing in Autism and ADHD / Anahid POURTOUSI ; Connie YANG ; Zining DING ; Bobby STOJANOSKI ; Evdokia ANAGNOSTOU ; Robert NICOLSON ; Elizabeth KELLEY ; Stelios GEORGIADES ; Jennifer CROSBIE ; Russell SCHACHAR ; Muhammad AYUB ; Ryan A. STEVENSON in Journal of Autism and Developmental Disorders, 54-1 (January 2024)
[article]
Titre : Transdiagnostic Patterns of Sensory Processing in Autism and ADHD Type de document : Texte imprimé et/ou numérique Auteurs : Anahid POURTOUSI, Auteur ; Connie YANG, Auteur ; Zining DING, Auteur ; Bobby STOJANOSKI, Auteur ; Evdokia ANAGNOSTOU, Auteur ; Robert NICOLSON, Auteur ; Elizabeth KELLEY, Auteur ; Stelios GEORGIADES, Auteur ; Jennifer CROSBIE, Auteur ; Russell SCHACHAR, Auteur ; Muhammad AYUB, Auteur ; Ryan A. STEVENSON, Auteur Article en page(s) : p.280-292 Index. décimale : PER Périodiques Résumé : Sensory processing abilities are highly variable within and across people diagnosed with autism and attention-deficit/hyperactivity disorder (ADHD). This study examined the transdiagnostic nature of sensory processing abilities, and their association with features of autism and ADHD, in a large sample of autistic people (n?=?495) and people with ADHD (n?=?461). Five similar data-driven sensory phenotypes characterized sensory processing abilities, and showed similar patterns of association with features of autism and ADHD, across both diagnostic groups. These results demonstrate the transdiagnostic nature of sensory processing abilities, while contributing to a growing body of literature that suggests the autism and ADHD diagnostic labels have poor explanatory power. En ligne : https://doi.org/10.1007/s10803-022-05798-3 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=520
in Journal of Autism and Developmental Disorders > 54-1 (January 2024) . - p.280-292[article] Transdiagnostic Patterns of Sensory Processing in Autism and ADHD [Texte imprimé et/ou numérique] / Anahid POURTOUSI, Auteur ; Connie YANG, Auteur ; Zining DING, Auteur ; Bobby STOJANOSKI, Auteur ; Evdokia ANAGNOSTOU, Auteur ; Robert NICOLSON, Auteur ; Elizabeth KELLEY, Auteur ; Stelios GEORGIADES, Auteur ; Jennifer CROSBIE, Auteur ; Russell SCHACHAR, Auteur ; Muhammad AYUB, Auteur ; Ryan A. STEVENSON, Auteur . - p.280-292.
in Journal of Autism and Developmental Disorders > 54-1 (January 2024) . - p.280-292
Index. décimale : PER Périodiques Résumé : Sensory processing abilities are highly variable within and across people diagnosed with autism and attention-deficit/hyperactivity disorder (ADHD). This study examined the transdiagnostic nature of sensory processing abilities, and their association with features of autism and ADHD, in a large sample of autistic people (n?=?495) and people with ADHD (n?=?461). Five similar data-driven sensory phenotypes characterized sensory processing abilities, and showed similar patterns of association with features of autism and ADHD, across both diagnostic groups. These results demonstrate the transdiagnostic nature of sensory processing abilities, while contributing to a growing body of literature that suggests the autism and ADHD diagnostic labels have poor explanatory power. En ligne : https://doi.org/10.1007/s10803-022-05798-3 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=520 Validating the Repetitive Behavior Scale-Revised in Young Children with Autism Spectrum Disorder / Pat MIRENDA in Journal of Autism and Developmental Disorders, 40-12 (December 2010)
[article]
Titre : Validating the Repetitive Behavior Scale-Revised in Young Children with Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : Pat MIRENDA, Auteur ; Isabel M. SMITH, Auteur ; Tracy VAILLANCOURT, Auteur ; Stelios GEORGIADES, Auteur ; Eric DUKU, Auteur ; Peter SZATMARI, Auteur ; Susan E. BRYSON, Auteur ; Eric FOMBONNE, Auteur ; Wendy ROBERTS, Auteur ; Joanne VOLDEN, Auteur ; Charlotte WADDELL, Auteur ; Lonnie ZWAIGENBAUM, Auteur ; THE PATHWAYS IN ASD STUDY TEAM, Auteur Année de publication : 2010 Article en page(s) : p.1521-1530 Langues : Anglais (eng) Mots-clés : Repetitive behavior Autism spectrum disorder Factor analysis Internal validity External validity Preschool Index. décimale : PER Périodiques Résumé : This study examined the factor structure of the Repetitive Behavior Scale-Revised (RBS-R) in a sample of 287 preschool-aged children with autism spectrum disorder (ASD). A confirmatory factor analysis was used to examine six competing structural models. Spearman’s rank order correlations were calculated to examine the associations between factor scores and variables of interest. The 3- and 5-factor models were selected as preferable on the basis of fit statistics and parsimony. For both models, the strongest correlations were with problem behavior scores on the Child Behavior Checklist and repetitive behavior scores on the ADI-R. Developmental index standard scores were not correlated with factors in either model. The results confirm the utility of the RBS-R as a measure of repetitive behaviors in young children with ASD. En ligne : http://dx.doi.org/10.1007/s10803-010-1012-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=114
in Journal of Autism and Developmental Disorders > 40-12 (December 2010) . - p.1521-1530[article] Validating the Repetitive Behavior Scale-Revised in Young Children with Autism Spectrum Disorder [Texte imprimé et/ou numérique] / Pat MIRENDA, Auteur ; Isabel M. SMITH, Auteur ; Tracy VAILLANCOURT, Auteur ; Stelios GEORGIADES, Auteur ; Eric DUKU, Auteur ; Peter SZATMARI, Auteur ; Susan E. BRYSON, Auteur ; Eric FOMBONNE, Auteur ; Wendy ROBERTS, Auteur ; Joanne VOLDEN, Auteur ; Charlotte WADDELL, Auteur ; Lonnie ZWAIGENBAUM, Auteur ; THE PATHWAYS IN ASD STUDY TEAM, Auteur . - 2010 . - p.1521-1530.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 40-12 (December 2010) . - p.1521-1530
Mots-clés : Repetitive behavior Autism spectrum disorder Factor analysis Internal validity External validity Preschool Index. décimale : PER Périodiques Résumé : This study examined the factor structure of the Repetitive Behavior Scale-Revised (RBS-R) in a sample of 287 preschool-aged children with autism spectrum disorder (ASD). A confirmatory factor analysis was used to examine six competing structural models. Spearman’s rank order correlations were calculated to examine the associations between factor scores and variables of interest. The 3- and 5-factor models were selected as preferable on the basis of fit statistics and parsimony. For both models, the strongest correlations were with problem behavior scores on the Child Behavior Checklist and repetitive behavior scores on the ADI-R. Developmental index standard scores were not correlated with factors in either model. The results confirm the utility of the RBS-R as a measure of repetitive behaviors in young children with ASD. En ligne : http://dx.doi.org/10.1007/s10803-010-1012-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=114 Variable patterns of daily activity participation across settings in autistic youth: A latent profile transition analysis / Yun-Ju CHEN in Autism, 27-8 (November 2023)
[article]
Titre : Variable patterns of daily activity participation across settings in autistic youth: A latent profile transition analysis Type de document : Texte imprimé et/ou numérique Auteurs : Yun-Ju CHEN, Auteur ; Eric DUKU, Auteur ; Anat ZAIDMAN-ZAIT, Auteur ; Peter SZATMARI, Auteur ; Isabel M SMITH, Auteur ; Wendy J UNGAR, Auteur ; Lonnie ZWAIGENBAUM, Auteur ; Tracy VAILLANCOURT, Auteur ; Connor KERNS, Auteur ; Teresa BENNETT, Auteur ; Mayada ELSABBAGH, Auteur ; Ann THOMPSON, Auteur ; Stelios GEORGIADES, Auteur Article en page(s) : p.2241-2255 Mots-clés : autism environment latent transition participation profiles youth Index. décimale : PER Périodiques Résumé : Participation in daily activities is often linked to functional independence and well-being, yet individual variability in participation and factors associated with that variation have rarely been examined among autistic youth. We applied latent profile analysis to identify subgroups of youth based on parent-reported activity participation frequency at home, school and community, as well as associations with youth characteristics, family demographics and environmental supportiveness among 158 autistic youth (aged 11-14?years at baseline). Three-, three- and two-profile solutions were selected for home, school and community settings, respectively; the most prevalent profiles were characterized by frequent home participation (73%), low participation in non-classroom activities at school (65%) and low community participation, particularly in social gatherings (80%), indicating participation imbalance across settings. More active participation profiles were generally associated with greater environmental support, higher cognitive and adaptive functioning and less externalizing behaviour. Latent transition analysis revealed overall 75% stability in profile membership over approximately 1?year, with a different home participation profile emerging at the second time-point. Our findings highlighted the variable participation patterns among autistic youth as associated with individual, family and environmental factors, thus stressing the need for optimizing person-environment fit through tailored supports to promote autistic youth?s participation across settings.Lay abstractWhat people do or engage in in their daily lives, or daily life participation, is often linked to their state of being happy and healthy, as well as potential for living independently. To date, little research has been conducted on daily activity participation by autistic youth at home, at school or in the community. Learning more about individual differences in participation levels and what might influence them can help to create custom supports for autistic youth and their families. In this study, 158 caregivers of autistic youth were asked how often their children took part in 25 common activities at two assessments, about one year apart. The analysis showed three profiles for each of the home and school settings and two profiles for the community setting. These profiles reflected distinct patterns in how often autistic youth took part in various daily activities, particularly in doing homework, school club activities and community gatherings. Most autistic youth were in profiles marked by often taking part at home but less often at school and in the community, and about three-fourths of them tended to stay in the same profile over time. Autistic youth with limited participation profiles were more likely to have lower scores on measures of cognitive ability and daily life skills and more challenging behaviour, and faced more barriers in their environment. These findings show how important it is to think about each autistic person?s strengths and weaknesses, and changing needs, to better support their daily life participation. En ligne : http://dx.doi.org/10.1177/13623613231154729 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=513
in Autism > 27-8 (November 2023) . - p.2241-2255[article] Variable patterns of daily activity participation across settings in autistic youth: A latent profile transition analysis [Texte imprimé et/ou numérique] / Yun-Ju CHEN, Auteur ; Eric DUKU, Auteur ; Anat ZAIDMAN-ZAIT, Auteur ; Peter SZATMARI, Auteur ; Isabel M SMITH, Auteur ; Wendy J UNGAR, Auteur ; Lonnie ZWAIGENBAUM, Auteur ; Tracy VAILLANCOURT, Auteur ; Connor KERNS, Auteur ; Teresa BENNETT, Auteur ; Mayada ELSABBAGH, Auteur ; Ann THOMPSON, Auteur ; Stelios GEORGIADES, Auteur . - p.2241-2255.
in Autism > 27-8 (November 2023) . - p.2241-2255
Mots-clés : autism environment latent transition participation profiles youth Index. décimale : PER Périodiques Résumé : Participation in daily activities is often linked to functional independence and well-being, yet individual variability in participation and factors associated with that variation have rarely been examined among autistic youth. We applied latent profile analysis to identify subgroups of youth based on parent-reported activity participation frequency at home, school and community, as well as associations with youth characteristics, family demographics and environmental supportiveness among 158 autistic youth (aged 11-14?years at baseline). Three-, three- and two-profile solutions were selected for home, school and community settings, respectively; the most prevalent profiles were characterized by frequent home participation (73%), low participation in non-classroom activities at school (65%) and low community participation, particularly in social gatherings (80%), indicating participation imbalance across settings. More active participation profiles were generally associated with greater environmental support, higher cognitive and adaptive functioning and less externalizing behaviour. Latent transition analysis revealed overall 75% stability in profile membership over approximately 1?year, with a different home participation profile emerging at the second time-point. Our findings highlighted the variable participation patterns among autistic youth as associated with individual, family and environmental factors, thus stressing the need for optimizing person-environment fit through tailored supports to promote autistic youth?s participation across settings.Lay abstractWhat people do or engage in in their daily lives, or daily life participation, is often linked to their state of being happy and healthy, as well as potential for living independently. To date, little research has been conducted on daily activity participation by autistic youth at home, at school or in the community. Learning more about individual differences in participation levels and what might influence them can help to create custom supports for autistic youth and their families. In this study, 158 caregivers of autistic youth were asked how often their children took part in 25 common activities at two assessments, about one year apart. The analysis showed three profiles for each of the home and school settings and two profiles for the community setting. These profiles reflected distinct patterns in how often autistic youth took part in various daily activities, particularly in doing homework, school club activities and community gatherings. Most autistic youth were in profiles marked by often taking part at home but less often at school and in the community, and about three-fourths of them tended to stay in the same profile over time. Autistic youth with limited participation profiles were more likely to have lower scores on measures of cognitive ability and daily life skills and more challenging behaviour, and faced more barriers in their environment. These findings show how important it is to think about each autistic person?s strengths and weaknesses, and changing needs, to better support their daily life participation. En ligne : http://dx.doi.org/10.1177/13623613231154729 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=513