Characterizing Attention Resource Capacity in Autism: A Multiple Object Tracking Study / Bianca LEVY ; Jocelyn FAUBERT ; Armando BERTONE in Journal of Autism and Developmental Disorders, 54-8 (August 2024)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 54-8 (August 2024) . - p.2802-2815 Titre : Characterizing Attention Resource Capacity in Autism: A Multiple Object Tracking Study Type de document : Texte imprimé et/ou numérique Auteurs : Bianca LEVY, Auteur ; Jocelyn FAUBERT, Auteur ; Armando BERTONE, Auteur Article en page(s) : p.2802-2815 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : The extant literature aimed at characterizing attentional capability in autistics has presented inconsistent findings. This inconsistency and uncertainty may be the product of different theoretical and methodological approaches used to define attention in autism. In the current study, we investigate whether the allocation of attentional resources to task demands, and attention resource capacity, differs between autistics with no comorbid attention-deficit diagnosis (n = 55) and age-matched neurotypicals (n = 55). We compared differences in capacity and the allocation of resources by manipulating attentional load in a Multiple Object-Tracking (MOT) task, a robust, versatile, and ecological measure of selective, sustained, and distributed attention. While autistics demonstrated lower MOT performance, this difference disappeared when we accounted for fluid reasoning intelligence. Additionally, the similarity in the trend of MOT performance at increasing levels of attentional load between autistics and neurotypicals suggests no differences in the allocation of attentional resources to task demands. Taken together, our study suggests that higher-order cognitive abilities, such as intelligence, should be considered when characterizing attention across the autistic population in research. Similarly, our findings highlight the importance of considering cognitive competence when assessing attentional capabilities in autistic individuals, which could have significant implications for clinical diagnosis, treatment, and support. En ligne : https://doi.org/10.1007/s10803-023-05974-z Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=534 [article] Characterizing Attention Resource Capacity in Autism: A Multiple Object Tracking Study [Texte imprimé et/ou numérique] / Bianca LEVY, Auteur ; Jocelyn FAUBERT, Auteur ; Armando BERTONE, Auteur . - p.2802-2815. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 54-8 (August 2024) . - p.2802-2815 Index. décimale : PER Périodiques Résumé : The extant literature aimed at characterizing attentional capability in autistics has presented inconsistent findings. This inconsistency and uncertainty may be the product of different theoretical and methodological approaches used to define attention in autism. In the current study, we investigate whether the allocation of attentional resources to task demands, and attention resource capacity, differs between autistics with no comorbid attention-deficit diagnosis (n = 55) and age-matched neurotypicals (n = 55). We compared differences in capacity and the allocation of resources by manipulating attentional load in a Multiple Object-Tracking (MOT) task, a robust, versatile, and ecological measure of selective, sustained, and distributed attention. While autistics demonstrated lower MOT performance, this difference disappeared when we accounted for fluid reasoning intelligence. Additionally, the similarity in the trend of MOT performance at increasing levels of attentional load between autistics and neurotypicals suggests no differences in the allocation of attentional resources to task demands. Taken together, our study suggests that higher-order cognitive abilities, such as intelligence, should be considered when characterizing attention across the autistic population in research. Similarly, our findings highlight the importance of considering cognitive competence when assessing attentional capabilities in autistic individuals, which could have significant implications for clinical diagnosis, treatment, and support. En ligne : https://doi.org/10.1007/s10803-023-05974-z Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=534

Lateral glances toward moving stimuli among young children with autism: Early regulation of locally oriented perception? / Laurent MOTTRON in Development and Psychopathology, 19-1 (Winter 2007)  

Public ISBD [article]  inDevelopment and Psychopathology > 19-1 (Winter 2007) . - p. 23-36 Titre : Lateral glances toward moving stimuli among young children with autism: Early regulation of locally oriented perception? Type de document : Texte imprimé et/ou numérique Auteurs : Laurent MOTTRON, Auteur ; Tony CHARMAN, Auteur ; Sylvain PALARDY, Auteur ; Michel LEMAY, Auteur ; Michelle DAWSON, Auteur ; Claude BERTHIAUME, Auteur ; Catherine ST-CHARLES BERNIER, Auteur ; Geneviève MARTEL, Auteur ; Suzanne MINEAU, Auteur ; Jocelyn FAUBERT, Auteur Année de publication : 2007 Article en page(s) : p. 23-36 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Autistic adults display enhanced and locally oriented low-level perception of static visual information, but diminished perception of some types of movement. The identification of potential precursors, such as atypical perceptual processing, among very young children would be an initial step toward understanding the development of these phenomena. The purpose of this study was to provide an initial measure and interpretation of atypical visual exploratory behaviors toward inanimate objects (AVEBIOs) among young children with autism. A coding system for AVEBIOs was constructed from a corpus of 40 semistandardized assessments of autistic children. The most frequent atypical visual behavior among 15 children aged 33–73 months was lateral glance that was mostly oriented toward moving stimuli and was detected reliably by the experimenters (intraclass correlation > .90). This behavior was more common among autistic than typically developing children of similar verbal mental age and chronological age. As lateral vision is associated with the filtering of high spatial frequency (detail perception) information and the facilitation of high temporal frequencies (movement perception), its high prevalence among very young autistic children may reflect early attempts to regulate and/or optimize both excessive amounts of local information and diminished perception of movement. These findings are initial evidence for the need to consider the neural bases and development of atypical behaviors and their implications for intervention strategies. En ligne : http://dx.doi.org/10.1017/s0954579407070022 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=583 [article] Lateral glances toward moving stimuli among young children with autism: Early regulation of locally oriented perception? [Texte imprimé et/ou numérique] / Laurent MOTTRON, Auteur ; Tony CHARMAN, Auteur ; Sylvain PALARDY, Auteur ; Michel LEMAY, Auteur ; Michelle DAWSON, Auteur ; Claude BERTHIAUME, Auteur ; Catherine ST-CHARLES BERNIER, Auteur ; Geneviève MARTEL, Auteur ; Suzanne MINEAU, Auteur ; Jocelyn FAUBERT, Auteur . - 2007 . - p. 23-36. Langues : Anglais (eng) in Development and Psychopathology > 19-1 (Winter 2007) . - p. 23-36 Index. décimale : PER Périodiques Résumé : Autistic adults display enhanced and locally oriented low-level perception of static visual information, but diminished perception of some types of movement. The identification of potential precursors, such as atypical perceptual processing, among very young children would be an initial step toward understanding the development of these phenomena. The purpose of this study was to provide an initial measure and interpretation of atypical visual exploratory behaviors toward inanimate objects (AVEBIOs) among young children with autism. A coding system for AVEBIOs was constructed from a corpus of 40 semistandardized assessments of autistic children. The most frequent atypical visual behavior among 15 children aged 33–73 months was lateral glance that was mostly oriented toward moving stimuli and was detected reliably by the experimenters (intraclass correlation > .90). This behavior was more common among autistic than typically developing children of similar verbal mental age and chronological age. As lateral vision is associated with the filtering of high spatial frequency (detail perception) information and the facilitation of high temporal frequencies (movement perception), its high prevalence among very young autistic children may reflect early attempts to regulate and/or optimize both excessive amounts of local information and diminished perception of movement. These findings are initial evidence for the need to consider the neural bases and development of atypical behaviors and their implications for intervention strategies. En ligne : http://dx.doi.org/10.1017/s0954579407070022 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=583

Postural Hypo-Reactivity in Autism is Contingent on Development and Visual Environment: A Fully Immersive Virtual Reality Study / Selma GREFFOU in Journal of Autism and Developmental Disorders, 42-6 (June 2012)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 42-6 (June 2012) . - p.961-970 Titre : Postural Hypo-Reactivity in Autism is Contingent on Development and Visual Environment: A Fully Immersive Virtual Reality Study Type de document : Texte imprimé et/ou numérique Auteurs : Selma GREFFOU, Auteur ; Armando BERTONE, Auteur ; Eva-Maria HAHLER, Auteur ; Jean-Marie HANSSENS, Auteur ; Laurent MOTTRON, Auteur ; Jocelyn FAUBERT, Auteur Année de publication : 2012 Article en page(s) : p.961-970 Langues : Anglais (eng) Mots-clés : Autism  Posture  Development  Sensorimotor  Virtual reality  Motion perception Index. décimale : PER Périodiques Résumé : Although atypical motor behaviors have been associated with autism, investigations regarding their possible origins are scarce. This study assessed the visual and vestibular components involved in atypical postural reactivity in autism. Postural reactivity and stability were measured for younger (12–15 years) and older (16–33 years) autistic participants in response to a virtual tunnel oscillating at different frequencies. At the highest oscillation frequency, younger autistic participants showed significantly less instability compared to younger typically-developing participants; no such group differences were evidenced for older participants. Additionally, no significant differences in postural behavior were found between all 4 groups when presented with static or without visual information. Results confirm that postural hypo-reactivity to visual information is present in autism, but is contingent on both visual environment and development. En ligne : http://dx.doi.org/10.1007/s10803-011-1326-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=156 [article] Postural Hypo-Reactivity in Autism is Contingent on Development and Visual Environment: A Fully Immersive Virtual Reality Study [Texte imprimé et/ou numérique] / Selma GREFFOU, Auteur ; Armando BERTONE, Auteur ; Eva-Maria HAHLER, Auteur ; Jean-Marie HANSSENS, Auteur ; Laurent MOTTRON, Auteur ; Jocelyn FAUBERT, Auteur . - 2012 . - p.961-970. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 42-6 (June 2012) . - p.961-970 Mots-clés : Autism  Posture  Development  Sensorimotor  Virtual reality  Motion perception Index. décimale : PER Périodiques Résumé : Although atypical motor behaviors have been associated with autism, investigations regarding their possible origins are scarce. This study assessed the visual and vestibular components involved in atypical postural reactivity in autism. Postural reactivity and stability were measured for younger (12–15 years) and older (16–33 years) autistic participants in response to a virtual tunnel oscillating at different frequencies. At the highest oscillation frequency, younger autistic participants showed significantly less instability compared to younger typically-developing participants; no such group differences were evidenced for older participants. Additionally, no significant differences in postural behavior were found between all 4 groups when presented with static or without visual information. Results confirm that postural hypo-reactivity to visual information is present in autism, but is contingent on both visual environment and development. En ligne : http://dx.doi.org/10.1007/s10803-011-1326-6 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=156

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