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Related Concept Videos

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.
Language formation and comprehension take place in the dominant hemisphere. The dominant hemisphere is responsible for understanding the meaning of spoken, written, or sign language, as well as the ability to communicate. For most people, the left hemisphere is the dominant one. The right hemisphere, then, gives tone and emotional context to the...
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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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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.
Language Development01:22

Language Development

Children master language quickly and with relative ease, supported by both biological predisposition and reinforcement. B. F. Skinner (1957) proposed that language is learned through reinforcement, while Noam Chomsky (1965) argued that language acquisition mechanisms are biologically determined.
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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.
Epilepsy ll: Types01:22

Epilepsy ll: Types

Recurrent seizures, stemming from abnormal electrical activity in the brain, are the defining characteristic of epilepsy, a chronic neurological condition. Because seizure features vary greatly, epilepsy is classified using two systems: by seizure type and by epilepsy syndromes. These classifications enable clinicians to describe seizure patterns and select suitable treatment strategies.I. Classification by Seizure Type1. Focal EpilepsyFocal epilepsy begins in one hemisphere of the brain.

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Related Experiment Video

Updated: Jun 28, 2026

Event-related Potentials During Target-response Tasks to Study Cognitive Processes of Upper Limb Use in Children with Unilateral Cerebral Palsy
08:26

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Published on: January 11, 2016

Language development in children with simple-partial left-hemisphere epilepsy

H Cohen1, M T Le Normand

  • 1Laboratoire de neuropsychologie de l'enfant, Hôpital de la Salpêtrière cohen.henri@uqam.ca

Brain and Language
|September 23, 1998
PubMed
Summary
This summary is machine-generated.

Children with left frontal epilepsy showed better language comprehension than production. This suggests early left hemisphere involvement in language production, impacting development.

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Last Updated: Jun 28, 2026

Event-related Potentials During Target-response Tasks to Study Cognitive Processes of Upper Limb Use in Children with Unilateral Cerebral Palsy
08:26

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Published on: January 11, 2016

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Frontal Disconnection for Treating Mild Malformation of Cortical Development with Oligodendroglial Hyperplasia in Epilepsy (MOGHE) in the Frontal Lobe
06:04

Frontal Disconnection for Treating Mild Malformation of Cortical Development with Oligodendroglial Hyperplasia in Epilepsy (MOGHE) in the Frontal Lobe

Published on: August 16, 2024

Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Linguistics

Background:

  • Epilepsy, specifically simple-partial seizures (SPE) with left frontal (LF) foci, can impact cognitive development.
  • Understanding the cerebral basis of language acquisition is crucial for identifying developmental trajectories.

Purpose of the Study:

  • To investigate the nature of cerebral involvement in language acquisition in children with early-onset SPE-LF.
  • To analyze the dissociation between language comprehension and production in these children.

Main Methods:

  • Longitudinal study of six children with SPE-LF from ages 3 to 8 years.
  • Yearly linguistic evaluations of comprehension and production, compared to control groups.
  • Analysis of transcribed language using the Child Language Data Exchange System.

Main Results:

  • Children with SPE-LF demonstrated a significant dissociation between language comprehension and production.
  • Linguistic comprehension improved to normal levels by age 7.
  • Linguistic production remained significantly impaired throughout the study period.

Conclusions:

  • The findings suggest a complex interplay between brain maturation and dysfunction in language development.
  • Persistent deficits in linguistic production indicate early involvement of anterior left cerebral areas in language production.