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Related Concept Videos

Language and Cognition01:27

Language and Cognition

Language serves as a bridge between ideas and communication, influencing how individuals perceive and interact with the world. Psychologists have long debated whether language shapes thought or vice versa. This discussion gained grip with Edward Sapir and Benjamin Lee Whorf in the 1940s, who proposed that language determines thought, a concept known as linguistic determinism. They suggested that the vocabulary and structure of a language influence how its speakers think and perceive reality.
Lateralization01:28

Lateralization

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.
Cerebral Hemispheres01:05

Cerebral Hemispheres

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...
Learning Disabilities01:25

Learning Disabilities

Learning disabilities are cognitive disorders caused by neurological impairments that affect cognitive functions like language and reading, without indicating overall intellectual or developmental challenges. These disabilities differ from global intellectual or developmental disabilities as they are limited to distinct cognitive functions. Common learning disabilities include dysgraphia, dyslexia, and dyscalculia, each of which impacts unique aspects of learning.
Dyslexia
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Higher Mental Functions of the Brain: Language01:10

Higher Mental Functions of the Brain: Language

Language is a system of communication that allows the expression of thoughts, ideas, and feelings. The brain processes language in both hemispheres.
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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.
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To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings.

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Assessment of Cerebral Lateralization in Children using Functional Transcranial Doppler Ultrasound (fTCD)
07:44

Assessment of Cerebral Lateralization in Children using Functional Transcranial Doppler Ultrasound (fTCD)

Published on: September 27, 2010

Brain hemisphericity and developmental dyslexia.

Filippos Vlachos1, Eleni Andreou, Afroditi Delliou

  • 1University of Thessaly, Department of Special Education, Argonafton & Filellinon, 38221 Volos, Greece. fvlachos@uth.gr

Research in Developmental Disabilities
|March 12, 2013
PubMed
Summary
This summary is machine-generated.

Students with dyslexia show a stronger preference for right-hemisphere thinking styles compared to their peers. This suggests a link between brain hemisphericity and developmental dyslexia in secondary school students.

More Related Videos

Advancing Dyslexia Assessment in Children Through Computerized Testing
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Advancing Dyslexia Assessment in Children Through Computerized Testing

Published on: August 16, 2024

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Last Updated: May 13, 2026

Assessment of Cerebral Lateralization in Children using Functional Transcranial Doppler Ultrasound (fTCD)
07:44

Assessment of Cerebral Lateralization in Children using Functional Transcranial Doppler Ultrasound (fTCD)

Published on: September 27, 2010

Advancing Dyslexia Assessment in Children Through Computerized Testing
09:00

Advancing Dyslexia Assessment in Children Through Computerized Testing

Published on: August 16, 2024

Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Educational Psychology

Background:

  • Dyslexia is a common learning disorder affecting reading and spelling.
  • Brain hemisphericity, or the dominance of one brain hemisphere, is associated with cognitive functions.
  • Previous research suggests potential differences in brain organization between individuals with and without dyslexia.

Purpose of the Study:

  • To investigate the relationship between brain hemisphericity and dyslexia in secondary school students.
  • To determine if dyslexic students exhibit different hemispheric preferences compared to their non-dyslexic peers.

Main Methods:

  • Utilized the Preference Test (PT), a self-report measure of thinking style preferences.
  • Compared a group of 45 secondary school students diagnosed with dyslexia to a matched control group of 90 non-dyslexic students.
  • Matched control participants for age and sex with the dyslexic group.

Main Results:

  • Significantly more students with dyslexia demonstrated a preference for right-hemisphere thinking styles.
  • Control group participants showed a greater preference for left-hemisphere thinking styles.
  • The findings indicate a distinct hemispheric preference pattern in dyslexic students.

Conclusions:

  • The study supports the hypothesis that differences in hemispheric preference exist between dyslexic and non-dyslexic students.
  • Results suggest a greater involvement of the right hemisphere in the manifestation of developmental dyslexia.
  • These findings have implications for understanding the neurobiological underpinnings of dyslexia.