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Simms, V.; Karmiloff-Smith, A.; Ranzato, E.; Van Herwegen, J. – Journal of Autism and Developmental Disorders, 2020
Previous studies suggest that tasks dependent on the mental number line may be difficult for Williams Syndrome (WS) and Down Syndrome (DS) groups. However, few have directly assessed number line estimation in these groups. The current study assessed 28 WS, 25 DS and 25 typically developing (TD) participants in non-verbal intelligence, number…
Descriptors: Genetic Disorders, Down Syndrome, Computation, Numbers
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Ring, Melanie; Gaigg, Sebastian B.; Altgassen, Mareike; Barr, Peter; Bowler, Dermot M. – Journal of Autism and Developmental Disorders, 2018
Individuals with autism spectrum disorder (ASD) present difficulties in forming relations among items and context. This capacity for relational binding is also involved in spatial navigation and research on this topic in ASD is scarce and inconclusive. Using a computerised version of the Morris Water Maze task, ASD participants showed particular…
Descriptors: Spatial Ability, Short Term Memory, Adults, Autism
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Ronconi, Luca; Devita, Maria; Molteni, Massimo; Gori, Simone; Facoetti, Andrea – Journal of Autism and Developmental Disorders, 2018
Previous studies independently demonstrated impairments in rapid orienting/disengagement and zooming-out of spatial attention in autism spectrum disorder (ASD). These attentional mechanisms, however, are not completely independent. Aiming at a more complete picture of spatial attention deficits in ASD, we examined the relationship between…
Descriptors: Autism, Pervasive Developmental Disorders, Visual Perception, Attention
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English, Michael C.; Maybery, Murray T.; Visser, Troy A. – Journal of Autism and Developmental Disorders, 2017
Neurotypical individuals display a leftward attentional bias, called pseudoneglect, for physical space (e.g. landmark task) and mental representations of space (e.g. mental number line bisection). However, leftward bias is reduced in autistic individuals viewing faces, and neurotypical individuals with autistic traits viewing "greyscale"…
Descriptors: Autism, Attention, Spatial Ability, Bias
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Vanmarcke, Steven; Noens, Ilse; Steyaert, Jean; Wagemans, Johan – Journal of Autism and Developmental Disorders, 2017
While most typically developing (TD) participants have a coarse-to-fine processing style, people with autism spectrum disorder (ASD) seem to be less globally and more locally biased when processing visual information. The stimulus-specific spatial frequency content might be directly relevant to determine this temporal hierarchy of visual…
Descriptors: Autism, Pervasive Developmental Disorders, Visual Perception, Cognitive Processes
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Sanders, Ashley F.; Hobbs, Diana A.; Stephenson, David D.; Laird, Robert D.; Beaton, Elliott A. – Journal of Autism and Developmental Disorders, 2017
Stress and anxiety have a negative impact on working memory systems by competing for executive resources and attention. Broad memory deficits, anxiety, and elevated stress have been reported in individuals with chromosome 22q11.2 deletion syndrome (22q11.2DS). We investigated anxiety and physiological stress reactivity in relation to visuospatial…
Descriptors: Short Term Memory, Anxiety, Genetic Disorders, Stress Variables
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Vanmarcke, Steven; Wagemans, Johan – Journal of Autism and Developmental Disorders, 2017
Adolescents with and without autism spectrum disorder (ASD) performed two priming experiments in which they implicitly processed a prime stimulus, containing high and/or low spatial frequency information, and then explicitly categorized a target face either as male/female (gender task) or as positive/negative (Valence task). Adolescents with ASD…
Descriptors: Autism, Pervasive Developmental Disorders, Adolescents, Priming
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Macizo, P.; Soriano, M. F.; Paredes, N. – Journal of Autism and Developmental Disorders, 2016
We evaluated phonological and visuospatial working memory (WM) in autism spectrum disorders. Autistic children and typically developing children were compared. We used WM tasks that measured phonological and visuospatial WM up to the capacity limit of each children. Overall measures of WM did not show differences between autistic children and…
Descriptors: Autism, Pervasive Developmental Disorders, Children, Comparative Analysis
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Antezana, Ligia; Mosner, Maya G.; Troiani, Vanessa; Yerys, Benjamin E. – Journal of Autism and Developmental Disorders, 2016
In typical development there is a bias to orient visual attention to social information. Children with ASD do not reliably demonstrate this bias, and the role of attention orienting has not been well studied. We examined attention orienting via the inhibition of return (IOR) mechanism in a spatial cueing task using social-emotional cues; we…
Descriptors: Autism, Pervasive Developmental Disorders, Children, Child Development
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Muth, Anne; Hönekopp, Johannes; Falter, Christine M. – Journal of Autism and Developmental Disorders, 2014
Visuo-spatial skills are believed to be enhanced in autism spectrum disorders (ASDs). This meta-analysis tests the current state of evidence for Figure Disembedding, Block Design, Mental Rotation and Navon tasks in ASD and neurotypicals. Block Design (d = 0.32) and Figure Disembedding (d = 0.26) showed superior performance for ASD with large…
Descriptors: Autism, Spatial Ability, Visual Perception, Meta Analysis
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Semrud-Clikeman, Margaret; Fine, Jodene Goldenring; Bledsoe, Jesse – Journal of Autism and Developmental Disorders, 2014
It has been suggested that children with nonverbal learning disabilities (NLD) or Asperger's Syndrome (AS) may show difficulties with executive functioning. There were 3 groups in this study who completed a neuropsychological battery of visual-spatial, executive functioning, and reasoning tasks; AS (n = 37), NLD (n = 31), and controls…
Descriptors: Comparative Analysis, Children, Pervasive Developmental Disorders, Autism
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Ronconi, Luca; Facoetti, Andrea; Bulf, Hermann; Franchin, Laura; Bettoni, Roberta; Valenza, Eloisa – Journal of Autism and Developmental Disorders, 2014
Since subthreshold autistic social impairments aggregate in family members, and since attentional dysfunctions appear to be one of the earliest cognitive markers of children with autism, we investigated in the general population the relationship between infants' attentional functioning and the autistic traits measured in their parents.…
Descriptors: Infants, Parents with Disabilities, Autism, Prediction
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David, Nicole; Schultz, Johannes; Milne, Elizabeth; Schunke, Odette; Schöttle, Daniel; Münchau, Alexander; Siegel, Markus; Vogeley, Kai; Engel, Andreas K. – Journal of Autism and Developmental Disorders, 2014
Individuals with an autism spectrum disorder (ASD) show hallmark deficits in social perception. These difficulties might also reflect fundamental deficits in integrating visual signals. We contrasted predictions of a social perception and a spatial-temporal integration deficit account. Participants with ASD and matched controls performed two…
Descriptors: Brain Hemisphere Functions, Autism, Pervasive Developmental Disorders, Interpersonal Competence
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Chabani, Ellahe; Hommel, Bernhard – Journal of Autism and Developmental Disorders, 2014
Individuals with autism spectrum disorders (ASDs) have been assumed to show evidence of abnormal visuospatial processing, which has been attributed to a failure to integrate local features into coherent global Gestalts and/or to a bias towards local processing. As the available data are based on baseline performance only, which does not provide…
Descriptors: Autism, Pervasive Developmental Disorders, Visual Perception, Spatial Ability
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Takahashi, Junichi; Gyoba, Jiro; Yamawaki, Nozomi – Journal of Autism and Developmental Disorders, 2013
This report examines effects of the spatial complexity of configurations on visual short-term memory (VSTM) capacity for individuals from the general population differing on autism-spectrum quotient (AQ) scores. During each trial, nine-line segments with various orientations were arrayed in simple or complex configurations and presented in both…
Descriptors: Spatial Ability, Short Term Memory, Pervasive Developmental Disorders, Autism
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