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Related Concept Videos

Autism Spectrum Disorder01:19

Autism Spectrum Disorder

57
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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Cerebral Hemispheres01:05

Cerebral Hemispheres

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The human brain, a complex organ, is functionally divided into two cerebral hemispheres—left and right. These hemispheres are interconnected by a structure of paramount importance, the corpus callosum. This substantial bundle of neural fibers is not just a bridge between the hemispheres but a crucial element for the brain's comprehensive functioning. It enables efficient communication between the two hemispheres, allowing each side of the brain to control and receive sensory and motor...
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Lateralization01:28

Lateralization

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Brain lateralization refers to the division of mental processes and functions between the two hemispheres of the brain, a phenomenon that optimizes neural efficiency and underpins complex abilities in humans. This specialization allows each hemisphere to perform tasks where it has a comparative advantage, facilitating more refined cognitive capabilities across different domains.
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Related Experiment Video

Updated: Jun 3, 2025

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

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Published on: September 12, 2011

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Individuals with high autistic traits exhibit altered interhemispheric brain functional connectivity patterns.

Junling Wang1,2, Ludan Zhang1,2, Sitong Chen1,2

  • 1School of Medicine, Tianjin University, Tianjin, China.

Cognitive Neurodynamics
|January 13, 2025
PubMed
Summary
This summary is machine-generated.

Individuals with high autistic traits show reduced occipital brain connectivity, impacting social information processing. This finding offers neurophysiological insights for screening and intervention strategies.

Keywords:
AlphaAutistic traitsCoherenceEEGInterhemispheric connectivity

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Psychology

Background:

  • Individuals with high autistic traits (AT) experience social interaction difficulties.
  • Functional connectivity analysis offers neurophysiological insights into brain network function.
  • Understanding these neural patterns can aid screening and intervention.

Purpose of the Study:

  • Investigate brain network patterns in individuals with high AT.
  • Provide theoretical support for screening and intervention strategies.
  • Explore neurophysiological underpinnings of social challenges in high AT.

Main Methods:

  • Collected EEG data during resting state (eyes open/closed) from 48 participants.
  • Categorized participants into high AT (HAT) and low AT (LAT) groups using the Autism Spectrum Quotient (AQ) scale.
  • Computed alpha coherence and examined correlations with AQ scores.

Main Results:

  • HAT group showed significantly lower alpha coherence in the occipital cortex during eyes-closed rest.
  • Negative correlations found between AT degree (AQ scores) and alpha coherence in occipital and fronto-occipital regions.
  • Decreased occipital connectivity in high AT individuals may impair visual social information processing.

Conclusions:

  • High AT individuals exhibit distinct patterns of brain connectivity, particularly in the occipital region.
  • Findings suggest reduced neural connectivity contributes to social interaction challenges.
  • Neurophysiological signatures identified can inform targeted screening and intervention approaches.