Attentional networks in children and adolescents with autism spectrum disorder / Brandon KEEHN in Journal of Child Psychology and Psychiatry, 51-11 (November 2010)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 51-11 (November 2010) . - p.1251-1259 Titre : Attentional networks in children and adolescents with autism spectrum disorder Type de document : Texte imprimé et/ou numérique Auteurs : Brandon KEEHN, Auteur ; Alan J. LINCOLN, Auteur ; Ralph-Axel MULLER, Auteur ; Jeanne TOWNSEND, Auteur Année de publication : 2010 Article en page(s) : p.1251-1259 Langues : Anglais (eng) Mots-clés : Autism reaction-time visual-attention alerting orienting executive-control Index. décimale : PER Périodiques Résumé : Background:  Individuals diagnosed with autism spectrum disorder (ASD) exhibit lifelong abnormalities in the adaptive allocation of visual attention. The ubiquitous nature of attentional impairments in ASD has led some authors to hypothesize that atypical attentional modulation may be a factor in the development of higher-level sociocommunicative deficits. Method:  Participants were 20 children with ASD and 20 age- and Nonverbal IQ-matched typically developing (TD) children. We used the Attention Network Test (ANT) to investigate the efficiency and independence of three discrete attentional networks: alerting, orienting, and executive control. Additionally, we sought to investigate the relationship between each attentional network and measures of sociocommunicative symptom severity in children with ASD. Results:  Results indicate that the orienting, but not alerting or executive control, networks may be impaired in children with ASD. In contrast to TD children, correlational analyses suggest that the alerting and executive control networks may not function as independently in children with ASD. Additionally, an association was found between the alerting network and social impairment and between the executive control network and IQ in children with ASD. Conclusions:  The results provide further evidence of an impairment in the visuospatial orienting network in ASD and suggest that there may be greater interdependence of alerting and executive control networks in ASD. Furthermore, decreased ability to efficiently modulate levels of alertness was related to increased sociocommunicative deficits, suggesting that domain-general attentional function may be associated with ASD symptomatology. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2010.02257.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=110 [article] Attentional networks in children and adolescents with autism spectrum disorder [Texte imprimé et/ou numérique] / Brandon KEEHN, Auteur ; Alan J. LINCOLN, Auteur ; Ralph-Axel MULLER, Auteur ; Jeanne TOWNSEND, Auteur . - 2010 . - p.1251-1259. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 51-11 (November 2010) . - p.1251-1259 Mots-clés : Autism reaction-time visual-attention alerting orienting executive-control Index. décimale : PER Périodiques Résumé : Background:  Individuals diagnosed with autism spectrum disorder (ASD) exhibit lifelong abnormalities in the adaptive allocation of visual attention. The ubiquitous nature of attentional impairments in ASD has led some authors to hypothesize that atypical attentional modulation may be a factor in the development of higher-level sociocommunicative deficits. Method:  Participants were 20 children with ASD and 20 age- and Nonverbal IQ-matched typically developing (TD) children. We used the Attention Network Test (ANT) to investigate the efficiency and independence of three discrete attentional networks: alerting, orienting, and executive control. Additionally, we sought to investigate the relationship between each attentional network and measures of sociocommunicative symptom severity in children with ASD. Results:  Results indicate that the orienting, but not alerting or executive control, networks may be impaired in children with ASD. In contrast to TD children, correlational analyses suggest that the alerting and executive control networks may not function as independently in children with ASD. Additionally, an association was found between the alerting network and social impairment and between the executive control network and IQ in children with ASD. Conclusions:  The results provide further evidence of an impairment in the visuospatial orienting network in ASD and suggest that there may be greater interdependence of alerting and executive control networks in ASD. Furthermore, decreased ability to efficiently modulate levels of alertness was related to increased sociocommunicative deficits, suggesting that domain-general attentional function may be associated with ASD symptomatology. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2010.02257.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=110

Brief Report: A Gaming Approach to the Assessment of Attention Networks in Autism Spectrum Disorder and Typical Development / Lisa E. MASH in Journal of Autism and Developmental Disorders, 50-7 (July 2020)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 50-7 (July 2020) . - p.2607-2615 Titre : Brief Report: A Gaming Approach to the Assessment of Attention Networks in Autism Spectrum Disorder and Typical Development Type de document : Texte imprimé et/ou numérique Auteurs : Lisa E. MASH, Auteur ; Raymond M. KLEIN, Auteur ; Jeanne TOWNSEND, Auteur Article en page(s) : p.2607-2615 Langues : Anglais (eng) Mots-clés : Adults  Assessment  Attention  Autism  Neuropsychology Index. décimale : PER Périodiques Résumé : Attentional impairments are among the earliest identifiable features of autism spectrum disorders (ASDs). Three attention networks have been extensively studied using the attention network test (ANT), but this long and repetitive task may pose challenges for individuals with ASDs. The AttentionTrip was developed as a more engaging measure of attention network efficiency. In 20 adults with ASDs and 20 typically developing controls, both tasks produced typical network scores (all p??0.78). Reaction time was less variable in the AttentionTrip than the ANT, possibly reflecting improved task engagement. Although the AttentionTrip elicited more consistent responses throughout an experimental session, anomalously low split-half reliability for its executive control network suggests that some changes may be needed. En ligne : http://dx.doi.org/10.1007/s10803-018-3635-5 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=426 [article] Brief Report: A Gaming Approach to the Assessment of Attention Networks in Autism Spectrum Disorder and Typical Development [Texte imprimé et/ou numérique] / Lisa E. MASH, Auteur ; Raymond M. KLEIN, Auteur ; Jeanne TOWNSEND, Auteur . - p.2607-2615. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 50-7 (July 2020) . - p.2607-2615 Mots-clés : Adults  Assessment  Attention  Autism  Neuropsychology Index. décimale : PER Périodiques Résumé : Attentional impairments are among the earliest identifiable features of autism spectrum disorders (ASDs). Three attention networks have been extensively studied using the attention network test (ANT), but this long and repetitive task may pose challenges for individuals with ASDs. The AttentionTrip was developed as a more engaging measure of attention network efficiency. In 20 adults with ASDs and 20 typically developing controls, both tasks produced typical network scores (all p??0.78). Reaction time was less variable in the AttentionTrip than the ANT, possibly reflecting improved task engagement. Although the AttentionTrip elicited more consistent responses throughout an experimental session, anomalously low split-half reliability for its executive control network suggests that some changes may be needed. En ligne : http://dx.doi.org/10.1007/s10803-018-3635-5 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=426

Guidelines and Best Practices for Electrophysiological Data Collection, Analysis and Reporting in Autism / Sara Jane WEBB in Journal of Autism and Developmental Disorders, 45-2 (February 2015)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 45-2 (February 2015) . - p.425-443 Titre : Guidelines and Best Practices for Electrophysiological Data Collection, Analysis and Reporting in Autism Type de document : Texte imprimé et/ou numérique Auteurs : Sara Jane WEBB, Auteur ; Raphael BERNIER, Auteur ; Heather A. HENDERSON, Auteur ; Mark H. JOHNSON, Auteur ; Emily J. H. JONES, Auteur ; Matthew D. LERNER, Auteur ; James C. MCPARTLAND, Auteur ; Charles A. NELSON, Auteur ; Donald C. ROJAS, Auteur ; Jeanne TOWNSEND, Auteur ; Marissa A. WESTERFIELD, Auteur Article en page(s) : p.425-443 Langues : Anglais (eng) Mots-clés : EEG  Electrophysiology  ERP  Event-related potentials  MEG  Magnetoencephalography  Autism  ASD  Guidelines Index. décimale : PER Périodiques Résumé : The EEG reflects the activation of large populations of neurons that act in synchrony and propagate to the scalp surface. This activity reflects both the brain’s background electrical activity and when the brain is being challenged by a task. Despite strong theoretical and methodological arguments for the use of EEG in understanding the neural correlates of autism, the practice of collecting, processing and evaluating EEG data is complex. Scientists should take into consideration both the nature of development in autism given the life-long, pervasive course of the disorder and the disability of altered or atypical social, communicative, and motor behaviors, all of which require accommodations to traditional EEG environments and paradigms. This paper presents guidelines for the recording, analyzing, and interpreting of EEG data with participants with autism. The goal is to articulate a set of scientific standards as well as methodological considerations that will increase the general field’s understanding of EEG methods, provide support for collaborative projects, and contribute to the evaluation of results and conclusions. En ligne : http://dx.doi.org/10.1007/s10803-013-1916-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=258 [article] Guidelines and Best Practices for Electrophysiological Data Collection, Analysis and Reporting in Autism [Texte imprimé et/ou numérique] / Sara Jane WEBB, Auteur ; Raphael BERNIER, Auteur ; Heather A. HENDERSON, Auteur ; Mark H. JOHNSON, Auteur ; Emily J. H. JONES, Auteur ; Matthew D. LERNER, Auteur ; James C. MCPARTLAND, Auteur ; Charles A. NELSON, Auteur ; Donald C. ROJAS, Auteur ; Jeanne TOWNSEND, Auteur ; Marissa A. WESTERFIELD, Auteur . - p.425-443. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 45-2 (February 2015) . - p.425-443 Mots-clés : EEG  Electrophysiology  ERP  Event-related potentials  MEG  Magnetoencephalography  Autism  ASD  Guidelines Index. décimale : PER Périodiques Résumé : The EEG reflects the activation of large populations of neurons that act in synchrony and propagate to the scalp surface. This activity reflects both the brain’s background electrical activity and when the brain is being challenged by a task. Despite strong theoretical and methodological arguments for the use of EEG in understanding the neural correlates of autism, the practice of collecting, processing and evaluating EEG data is complex. Scientists should take into consideration both the nature of development in autism given the life-long, pervasive course of the disorder and the disability of altered or atypical social, communicative, and motor behaviors, all of which require accommodations to traditional EEG environments and paradigms. This paper presents guidelines for the recording, analyzing, and interpreting of EEG data with participants with autism. The goal is to articulate a set of scientific standards as well as methodological considerations that will increase the general field’s understanding of EEG methods, provide support for collaborative projects, and contribute to the evaluation of results and conclusions. En ligne : http://dx.doi.org/10.1007/s10803-013-1916-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=258

Neural correlates of verbal and nonverbal semantic integration in children with autism spectrum disorders / Joseph P. MCCLEERY in Journal of Child Psychology and Psychiatry, 51-3 (March 2010)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 51-3 (March 2010) . - p.277-286 Titre : Neural correlates of verbal and nonverbal semantic integration in children with autism spectrum disorders Type de document : Texte imprimé et/ou numérique Auteurs : Joseph P. MCCLEERY, Auteur ; Laura SCHREIBMAN, Auteur ; Rita CEPONIENE, Auteur ; Karen M. BURNER, Auteur ; Jeanne TOWNSEND, Auteur ; Mikaela KINNEAR, Auteur Année de publication : 2010 Article en page(s) : p.277-286 Langues : Anglais (eng) Mots-clés : Event-related-potentials N400 words environmental-sounds Index. décimale : PER Périodiques Résumé : Background: Autism is a pervasive developmental disorder characterized by deficits in social-emotional, social-communicative, and language skills. Behavioral and neuroimaging studies have found that children with autism spectrum disorders (ASD) evidence abnormalities in semantic processing, with particular difficulties in verbal comprehension. However, it is not known whether these semantic deficits are confined to the verbal domain or represent a more general problem with semantic processing. The focus of the current study was to investigate verbal and meaningful nonverbal semantic processing in high-functioning children with autism (mean age = 5.8 years) using event-related potentials (ERPs). Method: ERPs were recorded while children attended to semantically matching and mismatching picture–word and picture–environmental sound pairs. Results: ERPs of typically developing children exhibited evidence of semantic incongruency detection in both the word and environmental sound conditions, as indexed by elicitation of an N400 effect. In contrast, children with ASD showed an N400 effect in the environmental sound condition but not in the word condition. Conclusions: These results provide evidence for a deficiency in the automatic activation of semantic representations in children with ASD, and suggest that this deficit is somewhat more selective to, or more severe in, the verbal than the nonverbal domain. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2009.02157.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=988 [article] Neural correlates of verbal and nonverbal semantic integration in children with autism spectrum disorders [Texte imprimé et/ou numérique] / Joseph P. MCCLEERY, Auteur ; Laura SCHREIBMAN, Auteur ; Rita CEPONIENE, Auteur ; Karen M. BURNER, Auteur ; Jeanne TOWNSEND, Auteur ; Mikaela KINNEAR, Auteur . - 2010 . - p.277-286. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 51-3 (March 2010) . - p.277-286 Mots-clés : Event-related-potentials N400 words environmental-sounds Index. décimale : PER Périodiques Résumé : Background: Autism is a pervasive developmental disorder characterized by deficits in social-emotional, social-communicative, and language skills. Behavioral and neuroimaging studies have found that children with autism spectrum disorders (ASD) evidence abnormalities in semantic processing, with particular difficulties in verbal comprehension. However, it is not known whether these semantic deficits are confined to the verbal domain or represent a more general problem with semantic processing. The focus of the current study was to investigate verbal and meaningful nonverbal semantic processing in high-functioning children with autism (mean age = 5.8 years) using event-related potentials (ERPs). Method: ERPs were recorded while children attended to semantically matching and mismatching picture–word and picture–environmental sound pairs. Results: ERPs of typically developing children exhibited evidence of semantic incongruency detection in both the word and environmental sound conditions, as indexed by elicitation of an N400 effect. In contrast, children with ASD showed an N400 effect in the environmental sound condition but not in the word condition. Conclusions: These results provide evidence for a deficiency in the automatic activation of semantic representations in children with ASD, and suggest that this deficit is somewhat more selective to, or more severe in, the verbal than the nonverbal domain. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2009.02157.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=988

Tracking the Sensory Environment: An ERP Study of Probability and Context Updating in ASD / Marissa A. WESTERFIELD in Journal of Autism and Developmental Disorders, 45-2 (February 2015)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 45-2 (February 2015) . - p.600-611 Titre : Tracking the Sensory Environment: An ERP Study of Probability and Context Updating in ASD Type de document : Texte imprimé et/ou numérique Auteurs : Marissa A. WESTERFIELD, Auteur ; Marla ZINNI, Auteur ; Khang VO, Auteur ; Jeanne TOWNSEND, Auteur Article en page(s) : p.600-611 Langues : Anglais (eng) Mots-clés : Autism  ASD  ERP  Attention  P3 Index. décimale : PER Périodiques Résumé : We recorded visual event-related brain potentials from 32 adult male participants (16 high-functioning participants diagnosed with autism spectrum disorder (ASD) and 16 control participants, ranging in age from 18 to 53 years) during a three-stimulus oddball paradigm. Target and non-target stimulus probability was varied across three probability conditions, whereas the probability of a third non-target stimulus was held constant in all conditions. P3 amplitude to target stimuli was more sensitive to probability in ASD than in typically developing participants, whereas P3 amplitude to non-target stimuli was less responsive to probability in ASD participants. This suggests that neural responses to changes in event probability are attention-dependant in high-functioning ASD. The implications of these findings for higher-level behaviors such as prediction and planning are discussed. En ligne : http://dx.doi.org/10.1007/s10803-014-2045-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=258 [article] Tracking the Sensory Environment: An ERP Study of Probability and Context Updating in ASD [Texte imprimé et/ou numérique] / Marissa A. WESTERFIELD, Auteur ; Marla ZINNI, Auteur ; Khang VO, Auteur ; Jeanne TOWNSEND, Auteur . - p.600-611. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 45-2 (February 2015) . - p.600-611 Mots-clés : Autism  ASD  ERP  Attention  P3 Index. décimale : PER Périodiques Résumé : We recorded visual event-related brain potentials from 32 adult male participants (16 high-functioning participants diagnosed with autism spectrum disorder (ASD) and 16 control participants, ranging in age from 18 to 53 years) during a three-stimulus oddball paradigm. Target and non-target stimulus probability was varied across three probability conditions, whereas the probability of a third non-target stimulus was held constant in all conditions. P3 amplitude to target stimuli was more sensitive to probability in ASD than in typically developing participants, whereas P3 amplitude to non-target stimuli was less responsive to probability in ASD participants. This suggests that neural responses to changes in event probability are attention-dependant in high-functioning ASD. The implications of these findings for higher-level behaviors such as prediction and planning are discussed. En ligne : http://dx.doi.org/10.1007/s10803-014-2045-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=258

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