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Global and local visual processing in autism - a co-twin-control study / J. NEUFELD in Journal of Child Psychology and Psychiatry, 61-4 (April 2020)
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Titre : Global and local visual processing in autism - a co-twin-control study Type de document : Texte imprimé et/ou numérique Auteurs : J. NEUFELD, Auteur ; A. HAGSTROM, Auteur ; A. VAN'T WESTEINDE, Auteur ; K. LUNDIN, Auteur ; Elodie CAUVET, Auteur ; C. WILLFORS, Auteur ; J. ISAKSSON, Auteur ; P. LICHTENSTEIN, Auteur ; Sven BÖLTE, Auteur Article en page(s) : p.470-479 Langues : Anglais (eng) Mots-clés : Autism Spectrum Disorder central coherence co-twin-control design detail focus global/local visual processing Index. décimale : PER Périodiques Résumé : BACKGROUND: Autism Spectrum Disorder (ASD) is associated with altered global and local visual processing. However, the nature of these alterations remains controversial, with contradictory findings and notions ranging from a reduced drive to integrate information into a coherent 'gestalt' ("weak central coherence" = WCC) to an enhanced perceptual functioning (EPF) in local processing. METHODS: This study assessed the association between autism and global/local visual processing, using a large sample of monozygotic (MZ) and dizygotic (DZ) twins (N = 290, 48% females, age = 8-31 years). The Fragmented Pictures Test (FPT) assessed global processing, whereas local processing was estimated with the Embedded Figures Test (EFT) and the Block Design Test (BDT). Autism was assessed both categorically (clinical diagnosis), and dimensionally (autistic traits). Associations between visual tasks and autism were estimated both across the cohort and within-twin pairs where all factors shared between twins are implicitly controlled. RESULTS: Clinical diagnosis and autistic traits predicted a need for more visual information for gestalt processing in the FPT across the cohort. For clinical diagnosis, this association remained within-pairs and at trend-level even within MZ twin pairs alone. ASD and higher autistic traits predicted lower EFT and BDT performance across the cohort, but these associations were lost within-pairs. CONCLUSIONS: In line with the WCC account, our findings indicate an association between autism and reduced global visual processing in children, adolescents and young adults (but no evidence for EPF). Observing a similar association within MZ twins suggests a non-shared environmental contribution. En ligne : http://dx.doi.org/10.1111/jcpp.13120 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=421
in Journal of Child Psychology and Psychiatry > 61-4 (April 2020) . - p.470-479[article] Global and local visual processing in autism - a co-twin-control study [Texte imprimé et/ou numérique] / J. NEUFELD, Auteur ; A. HAGSTROM, Auteur ; A. VAN'T WESTEINDE, Auteur ; K. LUNDIN, Auteur ; Elodie CAUVET, Auteur ; C. WILLFORS, Auteur ; J. ISAKSSON, Auteur ; P. LICHTENSTEIN, Auteur ; Sven BÖLTE, Auteur . - p.470-479.
Langues : Anglais (eng)
in Journal of Child Psychology and Psychiatry > 61-4 (April 2020) . - p.470-479
Mots-clés : Autism Spectrum Disorder central coherence co-twin-control design detail focus global/local visual processing Index. décimale : PER Périodiques Résumé : BACKGROUND: Autism Spectrum Disorder (ASD) is associated with altered global and local visual processing. However, the nature of these alterations remains controversial, with contradictory findings and notions ranging from a reduced drive to integrate information into a coherent 'gestalt' ("weak central coherence" = WCC) to an enhanced perceptual functioning (EPF) in local processing. METHODS: This study assessed the association between autism and global/local visual processing, using a large sample of monozygotic (MZ) and dizygotic (DZ) twins (N = 290, 48% females, age = 8-31 years). The Fragmented Pictures Test (FPT) assessed global processing, whereas local processing was estimated with the Embedded Figures Test (EFT) and the Block Design Test (BDT). Autism was assessed both categorically (clinical diagnosis), and dimensionally (autistic traits). Associations between visual tasks and autism were estimated both across the cohort and within-twin pairs where all factors shared between twins are implicitly controlled. RESULTS: Clinical diagnosis and autistic traits predicted a need for more visual information for gestalt processing in the FPT across the cohort. For clinical diagnosis, this association remained within-pairs and at trend-level even within MZ twin pairs alone. ASD and higher autistic traits predicted lower EFT and BDT performance across the cohort, but these associations were lost within-pairs. CONCLUSIONS: In line with the WCC account, our findings indicate an association between autism and reduced global visual processing in children, adolescents and young adults (but no evidence for EPF). Observing a similar association within MZ twins suggests a non-shared environmental contribution. En ligne : http://dx.doi.org/10.1111/jcpp.13120 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=421