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Related Concept Videos

Autism Spectrum Disorder01:19

Autism Spectrum Disorder

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.
Visual Agnosia01:12

Visual Agnosia

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 end"...
Attention-Deficit/Hyperactivity Disorder01:30

Attention-Deficit/Hyperactivity Disorder

Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterized by persistent inattention, hyperactivity, and impulsivity. It affects approximately 5-8% of children globally, with around 60-70% of cases persisting into adulthood. ADHD has significant implications for educational attainment, social interactions, and occupational success.
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings.

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Related Experiment Video

Updated: May 22, 2026

Comparing Eye-tracking Data of Children with High-functioning ASD, Comorbid ADHD, and of a Control Watching Social Videos
05:32

Comparing Eye-tracking Data of Children with High-functioning ASD, Comorbid ADHD, and of a Control Watching Social Videos

Published on: December 7, 2018

Early-stage visual processing abnormalities in high-functioning autism spectrum disorder (ASD).

Joshua M Baruth1, Manuel F Casanova, Lonnie Sears

  • 1Department of Anatomical Sciences and Neurobiology, University of Louisville School of Medicine, Louisville, KY 40202.

Translational Neuroscience
|May 8, 2012
PubMed
Summary
This summary is machine-generated.

Individuals with autism spectrum disorder (ASD) show heightened brain responses to irrelevant visual stimuli, indicating early visual processing differences. This may contribute to sensory overload and difficulties in distinguishing important information.

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Related Experiment Videos

Last Updated: May 22, 2026

Comparing Eye-tracking Data of Children with High-functioning ASD, Comorbid ADHD, and of a Control Watching Social Videos
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Published on: December 7, 2018

Testing Sensory and Multisensory Function in Children with Autism Spectrum Disorder
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Published on: April 22, 2015

Eye Tracking Young Children with Autism
09:03

Eye Tracking Young Children with Autism

Published on: March 27, 2012

Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Clinical Psychology

Background:

  • Autism spectrum disorder (ASD) is associated with atypical sensory processing, potentially leading to sensory overload, stress, and social interaction challenges.
  • While early auditory processing in ASD has been extensively studied using event-related potentials (ERPs), early visual processing in ASD remains less explored.
  • Understanding visual processing in ASD is crucial for developing targeted interventions.

Purpose of the Study:

  • To investigate early-stage visual processing abnormalities in individuals with autism spectrum disorder (ASD).
  • To test the hypothesis that individuals with ASD exhibit altered cortical responses during early visual processing.
  • To examine differences in visual stimulus discrimination and motor response accuracy between individuals with ASD and controls.

Main Methods:

  • Utilized a visual oddball task employing illusory figures to elicit event-related potentials (ERPs).
  • Measured cortical responses over parieto-occipital and frontal regions of interest (ROIs) within 200ms of stimulus onset.
  • Compared ERPs, stimulus discrimination accuracy, and motor response errors between individuals with ASD and a control group.

Main Results:

  • Individuals with ASD demonstrated significantly larger cortical responses to task-irrelevant visual stimuli in early processing stages (within 200ms) compared to controls.
  • These abnormal responses were observed across both parieto-occipital and frontal ROIs.
  • Participants with ASD exhibited impaired stimulus discrimination and a higher frequency of motor response errors.

Conclusions:

  • Early-stage visual processing is characterized by abnormal cortical responses to irrelevant stimuli in individuals with ASD.
  • These findings suggest a potential neural basis for sensory processing differences and functional impairments in ASD.
  • The study highlights the importance of considering visual processing atypicalities in the context of ASD.