In Research in Autism Spectrum Disorders > 8-5 (May 2014). Keywords Autism-Spectrum Quotient Broader autism phenotype Embedded Figures Test Visual perception Introduction Autism is now widely regarded to be a spectrum condition. ALBRECHT, Auteur Marita FALKMER, Auteur Denise LEUNG, Auteur Anna ORDQVIST, Auteur Tele TAN, Auteur Wee Lih LEE, Auteur Torbjörn FALKMER, Auteur . - p.463-471. Visual search strategies of children with and without autism spectrum disorders during an embedded figures task / Chiara HORLIN, Auteur Matthew A. In Research in Autism Spectrum Disorders > 8-5 (May 2014). Differences in visual scanning patterns in the presence of typical behavioural performance suggest that any purported differences in processing style may not be detrimental to cognitive performance and further refinement of the current methodology may lead to support for a purported advantageous cognitive style. It has been suggested that this cognitive style may underlie the presence of stereotyped routines, repetitive interests and behaviours, and both relate in some way to sensory abnormalities. There were no other noteworthy differences between children with and without ASD. Many individuals with autism tend to focus on details. Accuracy was similar between the two groups. Children with ASD exhibited fewer fixations, and less time per fixation, on the target figure. Twenty-three children with, and 31 children without an ASD were shown 16 items from the Figure-Ground subtest of the TVPS-3 while wearing an eye tracker. We investigated visual scanning behaviour in children with ASD during an EFT in an attempt replicating a previous study examining differences in visual search behaviour. Individuals with ASD often demonstrate superior performance on embedded figures tasks (EFTs). 2001 Frith 1991), such that individuals can report mild autistic-like traits without themselves or their immediate relatives having an autism spectrum disorder. The Embedded Figure Test (EFT) requires locating a simple shape embedded within a background of overlapping target-irrelevant scene elements. ALBRECHT, Auteur Marita FALKMER, Auteur Denise LEUNG, Auteur Anna ORDQVIST, Auteur Tele TAN, Auteur Wee Lih LEE, Auteur Torbjörn FALKMER, AuteurĪSD Eye tracking Embedded figures test Visual search An extension of the concept of a broader autism phenotype is to argue for a continuum of severity of autistic traits in the broader population (Baron-Cohen et al. The Extreme Male Brain theory of autism proposes that enhanced visual acuity underpins greater attention to detail (assessed by the EFT) which is a. Thus a simple search task is sufficient to detect a performance advantage associated with higher levels of autistic traits and has the advantages of a solid footing in visual theory and being readily repeatable for the purpose of assessing performance variability and change with interventions.Visual search strategies of children with and without autism spectrum disorders during an embedded figures taskĬhiara HORLIN, Auteur Matthew A. Enhanced performance upon the Embedded Figures Test (EFT) in individuals with autism spectrum disorder (ASD) has informed psychological theories of the non-social aspects that characterise ASD. However, the group difference in RF search performance was unaffected by the amount of stimulus overlap. Compared to students scoring low on the Autism Spectrum Quotient (AQ n=27), those scoring high on the AQ (n=23) were faster on the EFT and also significantly less influenced by increasing set size of the stimulus array in all RF search task conditions. On the ‘Reading the Mind in the Eyes’ Test, on average women score higher than men, and people with autism spectrum conditions score even lower than typical males (Baron-Cohen et al., 1997). The conditions employed were: 'singles', where all the patterns were spatially discrete, 'pairs', where two overlapping elements formed each cluster, and 'quads', comprising four overlapping elements per cluster. In all conditions, the task was to detect whether the target RF3 (a triangular shape chosen for its visual properties) was present among a number of distracter RF4 (a square shape) patterns. The EFT is a search task and so here a radial frequency (RF) search task was created to directly explore efficacy of visual search and also the influence of element overlap on performance. This research investigated the critical visual properties which give rise to this improved performance. Observers with autism, or those with high levels of autistic-like traits, typically outperform matched comparison groups on the EFT. The Embedded Figure Test (EFT) requires locating a simple shape embedded within a background of overlapping target-irrelevant scene elements. The Embedded Figures Test assesses weak central coherence and individuals with autism are commonly assumed to perform superiorly however, the evidence for this claim is somewhat mixed.
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