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The Construction and Validation of an Abridged Version of the Autism-Spectrum Quotient (AQ-Short) / Rosa A. HOEKSTRA in Journal of Autism and Developmental Disorders, 41-5 (May 2011)
[article]
Titre : The Construction and Validation of an Abridged Version of the Autism-Spectrum Quotient (AQ-Short) Type de document : Texte imprimé et/ou numérique Auteurs : Rosa A. HOEKSTRA, Auteur ; Anna A. E. VINKHUYZEN, Auteur ; Sally WHEELWRIGHT, Auteur ; Meike BARTELS, Auteur ; Dorret I. BOOMSMA, Auteur ; Simon BARON-COHEN, Auteur ; Daniëlle POSTHUMA, Auteur ; Sophie VAN DER SLUIS, Auteur Année de publication : 2011 Article en page(s) : p.589-596 Langues : Anglais (eng) Mots-clés : Autism Factor analysis Validity Reliability Autism phenotype Autism-spectrum quotient Index. décimale : PER Périodiques Résumé : This study reports on the development and validation of an abridged version of the 50-item Autism-Spectrum Quotient (AQ), a self-report measure of autistic traits. We aimed to reduce the number of items whilst retaining high validity and a meaningful factor structure. The item reduction procedure was performed on data from 1,263 Dutch students and general population adults. The resulting 28-item AQ-Short was subsequently validated in 3 independent samples, both clinical and controls, from the Netherlands and the UK. The AQ-Short comprises two higher-order factors assessing ‘social behavioral difficulties’ and ‘a fascination for numbers/patterns’. The clear factor structure of the AQ-Short and its high sensitivity and specificity make the AQ-Short a useful alternative to the full 50-item version. En ligne : http://dx.doi.org/10.1007/s10803-010-1073-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=121
in Journal of Autism and Developmental Disorders > 41-5 (May 2011) . - p.589-596[article] The Construction and Validation of an Abridged Version of the Autism-Spectrum Quotient (AQ-Short) [Texte imprimé et/ou numérique] / Rosa A. HOEKSTRA, Auteur ; Anna A. E. VINKHUYZEN, Auteur ; Sally WHEELWRIGHT, Auteur ; Meike BARTELS, Auteur ; Dorret I. BOOMSMA, Auteur ; Simon BARON-COHEN, Auteur ; Daniëlle POSTHUMA, Auteur ; Sophie VAN DER SLUIS, Auteur . - 2011 . - p.589-596.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 41-5 (May 2011) . - p.589-596
Mots-clés : Autism Factor analysis Validity Reliability Autism phenotype Autism-spectrum quotient Index. décimale : PER Périodiques Résumé : This study reports on the development and validation of an abridged version of the 50-item Autism-Spectrum Quotient (AQ), a self-report measure of autistic traits. We aimed to reduce the number of items whilst retaining high validity and a meaningful factor structure. The item reduction procedure was performed on data from 1,263 Dutch students and general population adults. The resulting 28-item AQ-Short was subsequently validated in 3 independent samples, both clinical and controls, from the Netherlands and the UK. The AQ-Short comprises two higher-order factors assessing ‘social behavioral difficulties’ and ‘a fascination for numbers/patterns’. The clear factor structure of the AQ-Short and its high sensitivity and specificity make the AQ-Short a useful alternative to the full 50-item version. En ligne : http://dx.doi.org/10.1007/s10803-010-1073-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=121 Poor sleep affects daytime functioning in typically developing and autistic children not complaining of sleep problems: A questionnaire-based and polysomnographic study / Andréane LAMBERT in Research in Autism Spectrum Disorders, 23 (March 2016)
[article]
Titre : Poor sleep affects daytime functioning in typically developing and autistic children not complaining of sleep problems: A questionnaire-based and polysomnographic study Type de document : Texte imprimé et/ou numérique Auteurs : Andréane LAMBERT, Auteur ; Sophie TESSIER, Auteur ; Annie-Claude ROCHETTE, Auteur ; Peter SCHERZER, Auteur ; Laurent MOTTRON, Auteur ; Roger GODBOUT, Auteur Article en page(s) : p.94-106 Langues : Anglais (eng) Mots-clés : Autism phenotype EEG Insomnia Sleep disorders Index. décimale : PER Périodiques Résumé : Abstract Autism spectrum (AS) is a neurodevelopmental condition associated with poor sleep, which impairs daytime functioning. Most studies of sleep in autism have been based on subjective measures, notably parental reports. A few studies have used objective, laboratory polysomnography (PSG) measures, but often include confounding factors such as intellectual disability, sleep problems, other psychiatric illnesses, and medication. To address these limitations, we examined the relationship between sleep and behavior in prototypical AS of typical level of intelligence and non-autistic children not complaining of sleep problems. We examined sleep variables with The Children’ Sleep Habit Questionnaire (CSHQ) and a daily sleep agenda, both filled out by parents, and by PSG. These subjective and objective measures both revealed that sleep latency was longer in AS than in non-autistic children. Furthermore, AS children also showed less slow-wave sleep (SWS: stages 3 + 4), fewer sleep spindles and fewer K-complexes than non-autistic children. REM sleep, including eye movement density, was similar between the two groups. The proportion of light sleep, (stage 1 non-REM sleep) was negatively correlated with IQ (Wechsler and Raven matrices) in both groups of participants. A large amount of SWS predicted low levels of internalizing behavior in both groups and typical social functioning as determined by ADOS in AS children. These results indicate that autistic children not complaining of sleep problems may nonetheless be affected by poor sleep, which in turn influences their daytime functioning. En ligne : http://dx.doi.org/10.1016/j.rasd.2015.11.010 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=282
in Research in Autism Spectrum Disorders > 23 (March 2016) . - p.94-106[article] Poor sleep affects daytime functioning in typically developing and autistic children not complaining of sleep problems: A questionnaire-based and polysomnographic study [Texte imprimé et/ou numérique] / Andréane LAMBERT, Auteur ; Sophie TESSIER, Auteur ; Annie-Claude ROCHETTE, Auteur ; Peter SCHERZER, Auteur ; Laurent MOTTRON, Auteur ; Roger GODBOUT, Auteur . - p.94-106.
Langues : Anglais (eng)
in Research in Autism Spectrum Disorders > 23 (March 2016) . - p.94-106
Mots-clés : Autism phenotype EEG Insomnia Sleep disorders Index. décimale : PER Périodiques Résumé : Abstract Autism spectrum (AS) is a neurodevelopmental condition associated with poor sleep, which impairs daytime functioning. Most studies of sleep in autism have been based on subjective measures, notably parental reports. A few studies have used objective, laboratory polysomnography (PSG) measures, but often include confounding factors such as intellectual disability, sleep problems, other psychiatric illnesses, and medication. To address these limitations, we examined the relationship between sleep and behavior in prototypical AS of typical level of intelligence and non-autistic children not complaining of sleep problems. We examined sleep variables with The Children’ Sleep Habit Questionnaire (CSHQ) and a daily sleep agenda, both filled out by parents, and by PSG. These subjective and objective measures both revealed that sleep latency was longer in AS than in non-autistic children. Furthermore, AS children also showed less slow-wave sleep (SWS: stages 3 + 4), fewer sleep spindles and fewer K-complexes than non-autistic children. REM sleep, including eye movement density, was similar between the two groups. The proportion of light sleep, (stage 1 non-REM sleep) was negatively correlated with IQ (Wechsler and Raven matrices) in both groups of participants. A large amount of SWS predicted low levels of internalizing behavior in both groups and typical social functioning as determined by ADOS in AS children. These results indicate that autistic children not complaining of sleep problems may nonetheless be affected by poor sleep, which in turn influences their daytime functioning. En ligne : http://dx.doi.org/10.1016/j.rasd.2015.11.010 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=282 The longitudinal heterogeneity of autistic traits: A systematic review / Richard PENDER in Research in Autism Spectrum Disorders, 79 (November 2020)
[article]
Titre : The longitudinal heterogeneity of autistic traits: A systematic review Type de document : Texte imprimé et/ou numérique Auteurs : Richard PENDER, Auteur ; Richard M. PASCO FEARON, Auteur ; Jon HERON, Auteur ; Will MANDY, Auteur Article en page(s) : 101671 Langues : Anglais (eng) Mots-clés : Autism Autism phenotype Autism spectrum Chronogeneity Developmental trajectories Heterogeneity Latent class growth model Neurodevelopment Index. décimale : PER Périodiques Résumé : Background Previous reviews have characterised the mean stability of autistic traits (ATs) across samples on a single measure. However, no review has yet assessed mean change across a range of measures, or described the longitudinal heterogeneity of ATs, i.e. variation in direction and degree of change. Method A systematic literature review was conducted using PubMed, PsycINFO and EMBASE up to May 31 2020. Forty-four studies meeting inclusion criteria were identified. Results Retrieved studies ranged from N = 20 to N = 9,744. Ages spanned one to 15 years at baseline and two to 23 years at follow-up. The proportion of female participants per study ranged from 0 to 51%. There is some evidence that overall ATs tend to reduce over time for autistic children, reflecting decreases in social communication difficulties but not restricted behaviours. This effect was strongest in clinical samples and using parent-report measures. However, there was good evidence that statistics of mean change obscure between-person differences in within-person change. Decreasing ATs appear linked to higher verbal and non-verbal IQ and female gender in autistic participants. Four patterns of change: increasing, decreasing and stable high and low best characterised the data. Conclusions Individuals experience diverse patterns of change over time. More general population studies are needed to reduce male bias. More work is needed to characterise the relationship between trajectories and well-being, functioning and quality of life outcomes. This will help to understand factors that promote resilience and reduce risk, and therefore to improve the timing and targets of intervention. En ligne : https://doi.org/10.1016/j.rasd.2020.101671 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=434
in Research in Autism Spectrum Disorders > 79 (November 2020) . - 101671[article] The longitudinal heterogeneity of autistic traits: A systematic review [Texte imprimé et/ou numérique] / Richard PENDER, Auteur ; Richard M. PASCO FEARON, Auteur ; Jon HERON, Auteur ; Will MANDY, Auteur . - 101671.
Langues : Anglais (eng)
in Research in Autism Spectrum Disorders > 79 (November 2020) . - 101671
Mots-clés : Autism Autism phenotype Autism spectrum Chronogeneity Developmental trajectories Heterogeneity Latent class growth model Neurodevelopment Index. décimale : PER Périodiques Résumé : Background Previous reviews have characterised the mean stability of autistic traits (ATs) across samples on a single measure. However, no review has yet assessed mean change across a range of measures, or described the longitudinal heterogeneity of ATs, i.e. variation in direction and degree of change. Method A systematic literature review was conducted using PubMed, PsycINFO and EMBASE up to May 31 2020. Forty-four studies meeting inclusion criteria were identified. Results Retrieved studies ranged from N = 20 to N = 9,744. Ages spanned one to 15 years at baseline and two to 23 years at follow-up. The proportion of female participants per study ranged from 0 to 51%. There is some evidence that overall ATs tend to reduce over time for autistic children, reflecting decreases in social communication difficulties but not restricted behaviours. This effect was strongest in clinical samples and using parent-report measures. However, there was good evidence that statistics of mean change obscure between-person differences in within-person change. Decreasing ATs appear linked to higher verbal and non-verbal IQ and female gender in autistic participants. Four patterns of change: increasing, decreasing and stable high and low best characterised the data. Conclusions Individuals experience diverse patterns of change over time. More general population studies are needed to reduce male bias. More work is needed to characterise the relationship between trajectories and well-being, functioning and quality of life outcomes. This will help to understand factors that promote resilience and reduce risk, and therefore to improve the timing and targets of intervention. En ligne : https://doi.org/10.1016/j.rasd.2020.101671 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=434