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Visual perception and processing in children with 22q11.2 deletion syndrome: associations with social cognition measures of face identity and emotion recognition / K. L. MCCABE in Journal of Neurodevelopmental Disorders, 8-1 (December 2016)
[article]
Titre : Visual perception and processing in children with 22q11.2 deletion syndrome: associations with social cognition measures of face identity and emotion recognition Type de document : Texte imprimé et/ou numérique Auteurs : K. L. MCCABE, Auteur ; S. MARLIN, Auteur ; Gavin COOPER, Auteur ; R. MORRIS, Auteur ; U. SCHALL, Auteur ; D. G. MURPHY, Auteur ; K. C. MURPHY, Auteur ; Linda E. CAMPBELL, Auteur Article en page(s) : p.30 Langues : Anglais (eng) Mots-clés : 22q11.2 deletion syndrome (22q11DS) Face processing Object recognition Perceptual organisation Social cognition Visual integration Index. décimale : PER Périodiques Résumé : BACKGROUND: People with 22q11.2 deletion syndrome (22q11DS) have difficulty processing social information including facial identity and emotion processing. However, difficulties with visual and attentional processes may play a role in difficulties observed with these social cognitive skills. METHODS: A cross-sectional study investigated visual perception and processing as well as facial processing abilities in a group of 49 children and adolescents with 22q11DS and 30 age and socio-economic status-matched healthy sibling controls using the Birmingham Object Recognition Battery and face processing sub-tests from the MRC face processing skills battery. RESULTS: The 22q11DS group demonstrated poorer performance on all measures of visual perception and processing, with greatest impairment on perceptual processes relating to form perception as well as object recognition and memory. In addition, form perception was found to make a significant and unique contribution to higher order social-perceptual processing (face identity) in the 22q11DS group. CONCLUSIONS: The findings indicate evidence for impaired visual perception and processing capabilities in 22q11DS. In turn, these were found to influence cognitive skills needed for social processes such as facial identity recognition in the children with 22q11DS. En ligne : http://dx.doi.org/10.1186/s11689-016-9164-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=349
in Journal of Neurodevelopmental Disorders > 8-1 (December 2016) . - p.30[article] Visual perception and processing in children with 22q11.2 deletion syndrome: associations with social cognition measures of face identity and emotion recognition [Texte imprimé et/ou numérique] / K. L. MCCABE, Auteur ; S. MARLIN, Auteur ; Gavin COOPER, Auteur ; R. MORRIS, Auteur ; U. SCHALL, Auteur ; D. G. MURPHY, Auteur ; K. C. MURPHY, Auteur ; Linda E. CAMPBELL, Auteur . - p.30.
Langues : Anglais (eng)
in Journal of Neurodevelopmental Disorders > 8-1 (December 2016) . - p.30
Mots-clés : 22q11.2 deletion syndrome (22q11DS) Face processing Object recognition Perceptual organisation Social cognition Visual integration Index. décimale : PER Périodiques Résumé : BACKGROUND: People with 22q11.2 deletion syndrome (22q11DS) have difficulty processing social information including facial identity and emotion processing. However, difficulties with visual and attentional processes may play a role in difficulties observed with these social cognitive skills. METHODS: A cross-sectional study investigated visual perception and processing as well as facial processing abilities in a group of 49 children and adolescents with 22q11DS and 30 age and socio-economic status-matched healthy sibling controls using the Birmingham Object Recognition Battery and face processing sub-tests from the MRC face processing skills battery. RESULTS: The 22q11DS group demonstrated poorer performance on all measures of visual perception and processing, with greatest impairment on perceptual processes relating to form perception as well as object recognition and memory. In addition, form perception was found to make a significant and unique contribution to higher order social-perceptual processing (face identity) in the 22q11DS group. CONCLUSIONS: The findings indicate evidence for impaired visual perception and processing capabilities in 22q11DS. In turn, these were found to influence cognitive skills needed for social processes such as facial identity recognition in the children with 22q11DS. En ligne : http://dx.doi.org/10.1186/s11689-016-9164-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=349 Enhanced parietal cortex activation during location detection in children with autism / Thomas P. DERAMUS in Journal of Neurodevelopmental Disorders, 6-1 (December 2014)
[article]
Titre : Enhanced parietal cortex activation during location detection in children with autism Type de document : Texte imprimé et/ou numérique Auteurs : Thomas P. DERAMUS, Auteur ; Briley S. BLACK, Auteur ; M. R. PENNICK, Auteur ; R. K. KANA, Auteur Article en page(s) : p.37 Langues : Anglais (eng) Mots-clés : Autism Dorsal Functional connectivity Location detection Object recognition Ventral Visual system fMRI Index. décimale : PER Périodiques Résumé : BACKGROUND: Visuospatial processing has been found to be mediated primarily by two cortical routes, one of which is unique to recognizing objects (occipital-temporal, ventral or "what" pathway) and the other to detecting the location of objects in space (parietal-occipital, dorsal or "where" pathway). Considering previous findings of relative advantage in people with autism in visuospatial processing, this functional MRI study examined the connectivity in the dorsal and ventral pathways in high-functioning children with autism. METHODS: Seventeen high-functioning children and adolescents with autism spectrum disorders (ASD) and 19 age-and-IQ-matched typically developing (TD) participants took part in this study. A simple visual task involving object recognition and location detection was used. In the MRI scanner, participants were shown grey scale pictures of objects (e.g., toys, household items, etc.) and were asked to identify the objects presented or to specify the location of objects relative to a cross at the center of the screen. RESULTS: Children with ASD, relative to TD children, displayed significantly greater activation in the left inferior parietal lobule (especially the angular gyrus) while detecting the location of objects. However, there were no group differences in brain activity during object recognition. There were also differences in functional connectivity, with the ASD participants showing decreased connectivity of the inferior temporal area with parietal and occipital areas during location detection. CONCLUSIONS: The results of this study underscore previous findings of an increased reliance on visuospatial processing (increased parietal activation) for information processing in ASD individuals. In addition, such processing may be more local, focal, and detailed in ASD as evidenced from the weaker functional connectivity. En ligne : http://dx.doi.org/10.1186/1866-1955-6-37 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=346
in Journal of Neurodevelopmental Disorders > 6-1 (December 2014) . - p.37[article] Enhanced parietal cortex activation during location detection in children with autism [Texte imprimé et/ou numérique] / Thomas P. DERAMUS, Auteur ; Briley S. BLACK, Auteur ; M. R. PENNICK, Auteur ; R. K. KANA, Auteur . - p.37.
Langues : Anglais (eng)
in Journal of Neurodevelopmental Disorders > 6-1 (December 2014) . - p.37
Mots-clés : Autism Dorsal Functional connectivity Location detection Object recognition Ventral Visual system fMRI Index. décimale : PER Périodiques Résumé : BACKGROUND: Visuospatial processing has been found to be mediated primarily by two cortical routes, one of which is unique to recognizing objects (occipital-temporal, ventral or "what" pathway) and the other to detecting the location of objects in space (parietal-occipital, dorsal or "where" pathway). Considering previous findings of relative advantage in people with autism in visuospatial processing, this functional MRI study examined the connectivity in the dorsal and ventral pathways in high-functioning children with autism. METHODS: Seventeen high-functioning children and adolescents with autism spectrum disorders (ASD) and 19 age-and-IQ-matched typically developing (TD) participants took part in this study. A simple visual task involving object recognition and location detection was used. In the MRI scanner, participants were shown grey scale pictures of objects (e.g., toys, household items, etc.) and were asked to identify the objects presented or to specify the location of objects relative to a cross at the center of the screen. RESULTS: Children with ASD, relative to TD children, displayed significantly greater activation in the left inferior parietal lobule (especially the angular gyrus) while detecting the location of objects. However, there were no group differences in brain activity during object recognition. There were also differences in functional connectivity, with the ASD participants showing decreased connectivity of the inferior temporal area with parietal and occipital areas during location detection. CONCLUSIONS: The results of this study underscore previous findings of an increased reliance on visuospatial processing (increased parietal activation) for information processing in ASD individuals. In addition, such processing may be more local, focal, and detailed in ASD as evidenced from the weaker functional connectivity. En ligne : http://dx.doi.org/10.1186/1866-1955-6-37 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=346 (Re-)conceptualisation in Asperger's Syndrome and Typical Individuals with Varying Degrees of Autistic-like Traits / Hollie G. BURNETT in Journal of Autism and Developmental Disorders, 43-1 (January 2013)
[article]
Titre : (Re-)conceptualisation in Asperger's Syndrome and Typical Individuals with Varying Degrees of Autistic-like Traits Type de document : Texte imprimé et/ou numérique Auteurs : Hollie G. BURNETT, Auteur ; Tjeerd JELLEMA, Auteur Année de publication : 2013 Article en page(s) : p.211-223 Langues : Anglais (eng) Mots-clés : High functioning autism Animacy Object recognition Concept switching Autism spectrum disorder AQ Index. décimale : PER Périodiques Résumé : The abilities to form new concepts from scratch (conceptualisation), and to flexibly switch from one concept to another (re-conceptualisation), were investigated in adults with Asperger's Syndrome and in typically-developed adults with low and high autism spectrum quotients. In consecutively presented morphs, containing increasing percentages of animate or inanimate objects, the emerging objects had to be identified. The abilities to conceptualise and reconceptualise became increasingly impaired with increasing autistic(-like) traits. Across both tasks, all groups recognised animate objects quicker than inanimate objects. However, this 'animate advantage' was differently affected by the two tasks. In the Reconceptualisation task, the 'animate advantage' gradually disappeared with increasing autistic(-like) traits, whereas in the Conceptualisation task it remained present. En ligne : http://dx.doi.org/10.1007/s10803-012-1567-z Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=187
in Journal of Autism and Developmental Disorders > 43-1 (January 2013) . - p.211-223[article] (Re-)conceptualisation in Asperger's Syndrome and Typical Individuals with Varying Degrees of Autistic-like Traits [Texte imprimé et/ou numérique] / Hollie G. BURNETT, Auteur ; Tjeerd JELLEMA, Auteur . - 2013 . - p.211-223.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 43-1 (January 2013) . - p.211-223
Mots-clés : High functioning autism Animacy Object recognition Concept switching Autism spectrum disorder AQ Index. décimale : PER Périodiques Résumé : The abilities to form new concepts from scratch (conceptualisation), and to flexibly switch from one concept to another (re-conceptualisation), were investigated in adults with Asperger's Syndrome and in typically-developed adults with low and high autism spectrum quotients. In consecutively presented morphs, containing increasing percentages of animate or inanimate objects, the emerging objects had to be identified. The abilities to conceptualise and reconceptualise became increasingly impaired with increasing autistic(-like) traits. Across both tasks, all groups recognised animate objects quicker than inanimate objects. However, this 'animate advantage' was differently affected by the two tasks. In the Reconceptualisation task, the 'animate advantage' gradually disappeared with increasing autistic(-like) traits, whereas in the Conceptualisation task it remained present. En ligne : http://dx.doi.org/10.1007/s10803-012-1567-z Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=187