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Related Concept Videos

Autism Spectrum Disorder01:19

Autism Spectrum Disorder

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Autism spectrum disorder (ASD) is a neurodevelopmental condition marked by persistent deficits in social communication and interaction alongside restrictive and repetitive behaviors or interests. ASD is sometimes accompanied by intellectual impairment.
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.
850
Visual Agnosia01:12

Visual Agnosia

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Visual agnosia is a condition characterized by the inability to recognize visually presented objects despite having normal vision. For instance, a person with visual agnosia can describe the shape and color of an object but cannot identify or name it. This impairment does not affect their visual field, acuity, color vision, brightness discrimination, language, or memory. An example of this condition in a social setting is someone at a dinner party asking for "that silver thing with a round...
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Comparing Eye-tracking Data of Children with High-functioning ASD, Comorbid ADHD, and of a Control Watching Social Videos
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A cross-task comparison on visuospatial processing in autism spectrum disorders.

Ramona Cardillo1, Silvia Lanfranchi1, Irene C Mammarella1

  • 1University of Padua, Italy.

Autism : the International Journal of Research and Practice
|November 29, 2019
PubMed
Summary
This summary is machine-generated.

Individuals with autism spectrum disorder (ASD) show typical visuospatial processing speed and working memory. However, ASD may involve weaker spatial integration in visual perception tasks, impacting cohesive stimuli processing.

Keywords:
Perceptual Reasoning Indexautism spectrum disorderglobal versus local processingvisuospatial intelligence

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Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Cognitive Science

Background:

  • Autism spectrum disorder (ASD) is a neurodevelopmental condition characterized by social-communication deficits and restricted, repetitive behaviors.
  • Visuospatial processing is a critical cognitive domain that can be affected in ASD, though findings are often mixed.
  • Understanding specific visuospatial profiles in ASD without intellectual disability is crucial for targeted interventions.

Purpose of the Study:

  • To conduct a cross-task comparison of visuospatial processing abilities in individuals with ASD without intellectual disability.
  • To compare visuospatial processing speed, perception, construction, and working memory between ASD and typically developing (TD) groups.
  • To identify specific visuospatial domains where differences may exist between ASD and TD individuals.

Main Methods:

  • Participants with ASD (without intellectual disability) were matched with TD individuals on general intelligence and perceptual reasoning.
  • Visuospatial processing was assessed using tasks measuring processing speed, perception, construction, and working memory.
  • Reaction times and accuracy were analyzed to compare group performances across different visuospatial tasks.

Main Results:

  • No significant differences were found between ASD and TD groups in visuospatial processing speed and visuospatial working memory.
  • The ASD group exhibited slower reaction times in visuo-perceptual tasks with perceptually cohesive stimuli, indicating weaker spatial integration.
  • Similar performance was observed in the visuo-constructive domain for unsegmented stimuli, suggesting intact local visual analysis in ASD.

Conclusions:

  • Visuospatial processing in ASD without intellectual disability is nuanced, with preserved speed and working memory.
  • Weaknesses in spatial integration may contribute to altered visual perception in ASD, particularly with complex stimuli.
  • Task demands and cognitive domain specificity are important factors in understanding visuospatial skills in ASD.