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Related Experiment Video

Updated: May 4, 2026

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

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

Published on: December 7, 2018

Visual motion processing and visual sensorimotor control in autism.

Yukari Takarae¹, Beatriz Luna², Nancy J Minshew²

¹1 Center for Autism and Developmental Disabilities, Department of Psychiatry, University of Texas Southwestern, Dallas, Texas.

Journal of the International Neuropsychological Society : JINS

|December 25, 2013

Summary

This summary is machine-generated.

Individuals with autism show altered brain activity in visual motion processing areas. This study reveals both local V5 circuit and network-level differences in autism, impacting visual perception and sensorimotor control.

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Area of Science:

Neuroscience
Autism Spectrum Disorder Research
Visual Perception

Background:

Autism is associated with visual motion processing deficits.
Underlying brain alterations are not well understood.

Purpose of the Study:

Investigate neural correlates of visual motion processing impairments in autism using fMRI.
Examine bottom-up and top-down visual motion processing in individuals with autism.

Main Methods:

Functional magnetic resonance imaging (fMRI) on 16 individuals with autism and 14 controls.
Two tasks: passive viewing for bottom-up processing and visual pursuit for top-down modulation.
Analysis of brain activation in V5 and frontal regions.

Main Results:

Autism group exhibited greater V5 activation and faster hemodynamic decay during passive viewing.
Reduced frontal and V5 activation observed in the autism group during visual pursuit.
Findings suggest alterations in local V5 circuitry and reduced top-down modulation.

Conclusions:

Local intrinsic abnormalities in V5 are linked to visual motion processing in autism.
Network-level abnormalities contribute to visual motion deficits in autism.
Altered GABAergic tone may underlie increased V5 activation and faster decay.