Autism Symptomatology in Boys with Fragile X Syndrome: A Cross Sectional Developmental Trajectories Comparison with Nonsyndromic Autism Spectrum Disorder / Angela John THURMAN in Journal of Autism and Developmental Disorders, 45-9 (September 2015)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 45-9 (September 2015) . - p.2816-2832 Titre : Autism Symptomatology in Boys with Fragile X Syndrome: A Cross Sectional Developmental Trajectories Comparison with Nonsyndromic Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : Angela John THURMAN, Auteur ; Andrea MCDUFFIE, Auteur ; Sara T. KOVER, Auteur ; Randi J. HAGERMAN, Auteur ; Leonard ABBEDUTO, Auteur Article en page(s) : p.2816-2832 Langues : Anglais (eng) Mots-clés : Fragile X syndrome  Autism spectrum disorder  Behavioral phenotype  Nonverbal cognition  Expressive vocabulary  Developmental trajectory Index. décimale : PER Périodiques Résumé : Although males with fragile X syndrome (FXS) are frequently described as demonstrating autism symptomatology, there is much debate regarding whether the behavioral symptoms representing the core domains of autism are the result of the same or different underlying neurological/psychological mechanisms. The present study used a cross-sectional developmental trajectories approach to compare the profiles of autism symptomatology relative to chronological age (CA), nonverbal IQ, and expressive vocabulary ability between individuals with FXS and individuals with nonsyndromic ASD. Results suggest that the onset of autism symptoms and their developmental trajectories in males with FXS differ in important ways as a function of CA, nonverbal cognitive ability, and expressive vocabulary relative to males with nonsyndromic ASD. Theoretical and clinical implications are discussed. En ligne : http://dx.doi.org/10.1007/s10803-015-2443-4 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=267 [article] Autism Symptomatology in Boys with Fragile X Syndrome: A Cross Sectional Developmental Trajectories Comparison with Nonsyndromic Autism Spectrum Disorder [Texte imprimé et/ou numérique] / Angela John THURMAN, Auteur ; Andrea MCDUFFIE, Auteur ; Sara T. KOVER, Auteur ; Randi J. HAGERMAN, Auteur ; Leonard ABBEDUTO, Auteur . - p.2816-2832. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 45-9 (September 2015) . - p.2816-2832 Mots-clés : Fragile X syndrome  Autism spectrum disorder  Behavioral phenotype  Nonverbal cognition  Expressive vocabulary  Developmental trajectory Index. décimale : PER Périodiques Résumé : Although males with fragile X syndrome (FXS) are frequently described as demonstrating autism symptomatology, there is much debate regarding whether the behavioral symptoms representing the core domains of autism are the result of the same or different underlying neurological/psychological mechanisms. The present study used a cross-sectional developmental trajectories approach to compare the profiles of autism symptomatology relative to chronological age (CA), nonverbal IQ, and expressive vocabulary ability between individuals with FXS and individuals with nonsyndromic ASD. Results suggest that the onset of autism symptoms and their developmental trajectories in males with FXS differ in important ways as a function of CA, nonverbal cognitive ability, and expressive vocabulary relative to males with nonsyndromic ASD. Theoretical and clinical implications are discussed. En ligne : http://dx.doi.org/10.1007/s10803-015-2443-4 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=267

Brief Report: Ages of Language Milestones as Predictors of Developmental Trajectories in Young Children with Autism Spectrum Disorder / Sara T. KOVER in Journal of Autism and Developmental Disorders, 46-7 (July 2016)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 46-7 (July 2016) . - p.2501-2507 Titre : Brief Report: Ages of Language Milestones as Predictors of Developmental Trajectories in Young Children with Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : Sara T. KOVER, Auteur ; Sarah R. EDMUNDS, Auteur ; Susan ELLIS WEISMER, Auteur Article en page(s) : p.2501-2507 Langues : Anglais (eng) Mots-clés : First words  Trajectories  Language development Index. décimale : PER Périodiques Résumé : Recognizing early risk markers in young children with autism spectrum disorder (ASD) is critical for timely diagnosis and intervention. The purpose of this study was to extend previous findings regarding language milestones to a longitudinal design, in which ages of expressive language milestones (i.e., first words, first phrases) could serve as predictors of developmental trajectories in a heterogeneous sample of young children with ASD (N = 98; age at first assessment: M = 32 months, SD = 5). Age of first words predicted trajectories of expressive language and adaptive skills; number of words predicted each outcome examined. Because these aspects of early language show promise as potential indicators of later functional outcomes, future research on developmental processes as they relate to individual differences will be particularly informative. En ligne : http://dx.doi.org/10.1007/s10803-016-2756-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=290 [article] Brief Report: Ages of Language Milestones as Predictors of Developmental Trajectories in Young Children with Autism Spectrum Disorder [Texte imprimé et/ou numérique] / Sara T. KOVER, Auteur ; Sarah R. EDMUNDS, Auteur ; Susan ELLIS WEISMER, Auteur . - p.2501-2507. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 46-7 (July 2016) . - p.2501-2507 Mots-clés : First words  Trajectories  Language development Index. décimale : PER Périodiques Résumé : Recognizing early risk markers in young children with autism spectrum disorder (ASD) is critical for timely diagnosis and intervention. The purpose of this study was to extend previous findings regarding language milestones to a longitudinal design, in which ages of expressive language milestones (i.e., first words, first phrases) could serve as predictors of developmental trajectories in a heterogeneous sample of young children with ASD (N = 98; age at first assessment: M = 32 months, SD = 5). Age of first words predicted trajectories of expressive language and adaptive skills; number of words predicted each outcome examined. Because these aspects of early language show promise as potential indicators of later functional outcomes, future research on developmental processes as they relate to individual differences will be particularly informative. En ligne : http://dx.doi.org/10.1007/s10803-016-2756-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=290

Brief Report: Fast Mapping Predicts Differences in Concurrent and Later Language Abilities Among Children with ASD / Courtney E. VENKER in Journal of Autism and Developmental Disorders, 46-3 (March 2016)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 46-3 (March 2016) . - p.1118-1123 Titre : Brief Report: Fast Mapping Predicts Differences in Concurrent and Later Language Abilities Among Children with ASD Type de document : Texte imprimé et/ou numérique Auteurs : Courtney E. VENKER, Auteur ; Sara T. KOVER, Auteur ; Susan ELLIS WEISMER, Auteur Article en page(s) : p.1118-1123 Langues : Anglais (eng) Mots-clés : Fast mapping  Word learning  Language  Cognition  Autism spectrum disorder Index. décimale : PER Périodiques Résumé : This study investigated whether the ability to learn word-object associations following minimal exposure (i.e., fast mapping) was associated with concurrent and later language abilities in children with ASD. Children who were poor learners at age 3½ had significantly lower receptive language abilities than children who successfully learned the new words, both concurrently (n = 59) and 2 years later (n = 53), lending ecological validity to experimental fast-mapping tasks. Fast mapping comprehension at age 3½ was associated with better language outcomes regardless of whether children had produced the new words. These findings highlight the importance of investigating processes of language learning in children with ASD. Understanding these processes will enable the development of maximally effective strategies for supporting word learning. En ligne : http://dx.doi.org/10.1007/s10803-015-2644-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=282 [article] Brief Report: Fast Mapping Predicts Differences in Concurrent and Later Language Abilities Among Children with ASD [Texte imprimé et/ou numérique] / Courtney E. VENKER, Auteur ; Sara T. KOVER, Auteur ; Susan ELLIS WEISMER, Auteur . - p.1118-1123. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 46-3 (March 2016) . - p.1118-1123 Mots-clés : Fast mapping  Word learning  Language  Cognition  Autism spectrum disorder Index. décimale : PER Périodiques Résumé : This study investigated whether the ability to learn word-object associations following minimal exposure (i.e., fast mapping) was associated with concurrent and later language abilities in children with ASD. Children who were poor learners at age 3½ had significantly lower receptive language abilities than children who successfully learned the new words, both concurrently (n = 59) and 2 years later (n = 53), lending ecological validity to experimental fast-mapping tasks. Fast mapping comprehension at age 3½ was associated with better language outcomes regardless of whether children had produced the new words. These findings highlight the importance of investigating processes of language learning in children with ASD. Understanding these processes will enable the development of maximally effective strategies for supporting word learning. En ligne : http://dx.doi.org/10.1007/s10803-015-2644-x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=282

Consistency and reliability of automated language measures across expressive language samples in autism / Heather MACFARLANE in Autism Research, 16-4 (April 2023)  

Public ISBD [article]  inAutism Research > 16-4 (April 2023) . - p.802-816 Titre : Consistency and reliability of automated language measures across expressive language samples in autism Type de document : Texte imprimé et/ou numérique Auteurs : Heather MACFARLANE, Auteur ; Alexandra C. SALEM, Auteur ; Steven BEDRICK, Auteur ; Jill K. DOLATA, Auteur ; Jack WIEDRICK, Auteur ; Grace O. LAWLEY, Auteur ; Lizbeth H. FINESTACK, Auteur ; Sara T. KOVER, Auteur ; Angela John THURMAN, Auteur ; Leonard ABBEDUTO, Auteur ; Eric FOMBONNE, Auteur Article en page(s) : p.802-816 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Abstract Autism Spectrum Disorder (ASD) is a neurodevelopmental disorder with substantial clinical heterogeneity, especially in language and communication ability. There is a need for validated language outcome measures that show sensitivity to true change for this population. We used Natural Language Processing to analyze expressive language transcripts of 64 highly-verbal children and young adults (age: 6-23?years, mean 12.8?years; 78.1% male) with ASD to examine the validity across language sampling context and test-retest reliability of six previously validated Automated Language Measures (ALMs), including Mean Length of Utterance in Morphemes, Number of Distinct Word Roots, C-units per minute, unintelligible proportion, um rate, and repetition proportion. Three expressive language samples were collected at baseline and again 4?weeks later. These samples comprised interview tasks from the Autism Diagnostic Observation Schedule (ADOS-2) Modules 3 and 4, a conversation task, and a narration task. The influence of language sampling context on each ALM was estimated using either generalized linear mixed-effects models or generalized linear models, adjusted for age, sex, and IQ. The 4?weeks test-retest reliability was evaluated using Lin's Concordance Correlation Coefficient (CCC). The three different sampling contexts were associated with significantly (P En ligne : https://doi.org/10.1002/aur.2897 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=499 [article] Consistency and reliability of automated language measures across expressive language samples in autism [Texte imprimé et/ou numérique] / Heather MACFARLANE, Auteur ; Alexandra C. SALEM, Auteur ; Steven BEDRICK, Auteur ; Jill K. DOLATA, Auteur ; Jack WIEDRICK, Auteur ; Grace O. LAWLEY, Auteur ; Lizbeth H. FINESTACK, Auteur ; Sara T. KOVER, Auteur ; Angela John THURMAN, Auteur ; Leonard ABBEDUTO, Auteur ; Eric FOMBONNE, Auteur . - p.802-816. Langues : Anglais (eng) in Autism Research > 16-4 (April 2023) . - p.802-816 Index. décimale : PER Périodiques Résumé : Abstract Autism Spectrum Disorder (ASD) is a neurodevelopmental disorder with substantial clinical heterogeneity, especially in language and communication ability. There is a need for validated language outcome measures that show sensitivity to true change for this population. We used Natural Language Processing to analyze expressive language transcripts of 64 highly-verbal children and young adults (age: 6-23?years, mean 12.8?years; 78.1% male) with ASD to examine the validity across language sampling context and test-retest reliability of six previously validated Automated Language Measures (ALMs), including Mean Length of Utterance in Morphemes, Number of Distinct Word Roots, C-units per minute, unintelligible proportion, um rate, and repetition proportion. Three expressive language samples were collected at baseline and again 4?weeks later. These samples comprised interview tasks from the Autism Diagnostic Observation Schedule (ADOS-2) Modules 3 and 4, a conversation task, and a narration task. The influence of language sampling context on each ALM was estimated using either generalized linear mixed-effects models or generalized linear models, adjusted for age, sex, and IQ. The 4?weeks test-retest reliability was evaluated using Lin's Concordance Correlation Coefficient (CCC). The three different sampling contexts were associated with significantly (P En ligne : https://doi.org/10.1002/aur.2897 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=499

Investigating Word Learning in Fragile X Syndrome: A Fast-Mapping Study / Andrea MCDUFFIE in Journal of Autism and Developmental Disorders, 43-7 (July 2013)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 43-7 (July 2013) . - p.1676-1691 Titre : Investigating Word Learning in Fragile X Syndrome: A Fast-Mapping Study Type de document : Texte imprimé et/ou numérique Auteurs : Andrea MCDUFFIE, Auteur ; Sara T. KOVER, Auteur ; Randi J. HAGERMAN, Auteur ; Leonard ABBEDUTO, Auteur Année de publication : 2013 Article en page(s) : p.1676-1691 Langues : Anglais (eng) Mots-clés : Autism  Fragile X syndrome  Fast-mapping  Language development  Vocabulary Index. décimale : PER Périodiques Résumé : Fast-mapping paradigms have not been used previously to examine the process of word learning in boys with fragile X syndrome (FXS), who are likely to have intellectual impairment, language delays, and symptoms of autism. In this study, a fast-mapping task was used to investigate associative word learning in 4- to 10-year-old boys with FXS relative to younger typically developing boys and age-matched boys with autism spectrum disorders (ASD). Task performance exceeded chance levels for all groups; however, boys with FXS outperformed boys with ASD, despite having lower levels of nonverbal cognition. Memory task demands significantly impacted performance only for boys with typical development. For boys with FXS or ASD, fast-mapping uniquely accounted for small but significant variance in concurrent levels of vocabulary comprehension as did chronological age and nonverbal IQ, but not autism severity. Understanding the fast-mapping process has implications for designing interventions to support word learning and language acquisition in these populations. En ligne : http://dx.doi.org/10.1007/s10803-012-1717-3 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=202 [article] Investigating Word Learning in Fragile X Syndrome: A Fast-Mapping Study [Texte imprimé et/ou numérique] / Andrea MCDUFFIE, Auteur ; Sara T. KOVER, Auteur ; Randi J. HAGERMAN, Auteur ; Leonard ABBEDUTO, Auteur . - 2013 . - p.1676-1691. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 43-7 (July 2013) . - p.1676-1691 Mots-clés : Autism  Fragile X syndrome  Fast-mapping  Language development  Vocabulary Index. décimale : PER Périodiques Résumé : Fast-mapping paradigms have not been used previously to examine the process of word learning in boys with fragile X syndrome (FXS), who are likely to have intellectual impairment, language delays, and symptoms of autism. In this study, a fast-mapping task was used to investigate associative word learning in 4- to 10-year-old boys with FXS relative to younger typically developing boys and age-matched boys with autism spectrum disorders (ASD). Task performance exceeded chance levels for all groups; however, boys with FXS outperformed boys with ASD, despite having lower levels of nonverbal cognition. Memory task demands significantly impacted performance only for boys with typical development. For boys with FXS or ASD, fast-mapping uniquely accounted for small but significant variance in concurrent levels of vocabulary comprehension as did chronological age and nonverbal IQ, but not autism severity. Understanding the fast-mapping process has implications for designing interventions to support word learning and language acquisition in these populations. En ligne : http://dx.doi.org/10.1007/s10803-012-1717-3 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=202

Preschool language variation, growth, and predictors in children on the autism spectrum / Susan ELLIS WEISMER in Journal of Child Psychology and Psychiatry, 56-12 (December 2015)  

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Receptive Vocabulary in Boys with Autism Spectrum Disorder: Cross-Sectional Developmental Trajectories / Sara T. KOVER in Journal of Autism and Developmental Disorders, 43-11 (November 2013)  

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Use of Emotional Cues for Lexical Learning: A Comparison of Autism Spectrum Disorder and Fragile X Syndrome / Angela John THURMAN in Journal of Autism and Developmental Disorders, 45-4 (April 2015)  

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