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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.

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Related Experiment Video

Updated: May 19, 2026

Probing the Brain in Autism Using fMRI and Diffusion Tensor Imaging
12:21

Probing the Brain in Autism Using fMRI and Diffusion Tensor Imaging

Published on: September 12, 2011

Atypical visuospatial processing in autism: insights from functional connectivity analysis.

Jane McGrath1, Katherine Johnson, Christine Ecker

  • 1Department of Psychiatry, Trinity Centre for Health Sciences, St. James's Hospital, Dublin, Ireland. jane.mcgrath@tc.ie

Autism Research : Official Journal of the International Society for Autism Research
|August 7, 2012
PubMed
Summary
This summary is machine-generated.

Individuals with autism spectrum disorder (ASD) show a relative advantage in mental rotation tasks. This is linked to altered brain connectivity and potentially enhanced visual processing abilities.

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Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Cognitive Science

Background:

  • Atypical visuospatial processing is a hallmark of autism spectrum disorders (ASDs).
  • The neurobiological basis of these visuospatial differences in ASDs remains unclear.
  • ASDs are increasingly understood to involve atypical neural connectivity patterns.

Purpose of the Study:

  • To investigate neural network connectivity during visuospatial processing in individuals with ASD.
  • To examine how brain connectivity differs between ASD and control groups during a mental rotation task.
  • To explore the relationship between behavioral performance and functional brain connectivity in ASD.

Main Methods:

  • Functional magnetic resonance imaging (fMRI) was used to assess brain activity and connectivity.
  • Twenty-two males with ASD and 22 matched controls performed a mental rotation task.
  • Participants judged whether rotated stimuli were identical or mirror images ('Same Trials' vs. 'Mirror Trials').

Main Results:

  • The ASD group exhibited a relative advantage in mental rotation, performing Same and Mirror trials at similar speeds.
  • Reduced brain activity was observed in multiple regions in the ASD group compared to controls.
  • While overall functional connectivity was reduced in ASD, some connections were recruited differently, with controls increasing and ASD suppressing connections as task difficulty rose.

Conclusions:

  • Individuals with ASD demonstrate a relative advantage in mental rotation tasks, associated with aberrant neural connectivity.
  • The findings suggest that altered recruitment of brain networks, possibly involving enhanced early visual processing, underlies visuospatial differences in ASD.
  • This study provides neurobiological insights into visuospatial atypicalities in autism spectrum disorders.