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Related Concept Videos

Language and Cognition01:27

Language and Cognition

538
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.
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Higher Mental Functions of the Brain: Language01:10

Higher Mental Functions of the Brain: Language

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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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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: Nov 9, 2025

Transcranial Direct Current Stimulation tDCS of Wernicke's and Broca's Areas in Studies of Language Learning and Word Acquisition
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Modality-Dependent Brain Activation Changes Induced by Acquiring a Second Language Abroad.

Kuniyoshi L Sakai1, Tatsuro Kuwamoto1, Satoma Yagi1

  • 1Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, Japan.

Frontiers in Behavioral Neuroscience
|April 12, 2021
PubMed
Summary
This summary is machine-generated.

Second language learning rapidly changes brain activity in language and memory areas. Functional MRI shows decreased frontal activation and increased temporal activation during listening, alongside visual network changes during reading.

Keywords:
fMRIhippocampuslanguage acquisitionlearning and memory (neurosciences)syntax

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Linguistics

Background:

  • Cortical activation patterns during second language acquisition are not fully understood.
  • Understanding these changes is crucial for optimizing language learning strategies.

Purpose of the Study:

  • To investigate dynamic changes in brain activation during second language (Japanese) acquisition.
  • To explore modality-specific neural network alterations in learners over a short period.

Main Methods:

  • Longitudinal functional Magnetic Resonance Imaging (fMRI) was used.
  • Participants underwent two sets of reading and listening tests (Pre and Post) after 2 months of immersion.
  • Behavioral improvements were correlated with neuroimaging findings.

Main Results:

  • Activation observed in left-dominant language areas, bilateral visual, and auditory cortices, suggesting multimodal integration.
  • Decreased activation in left frontal and visual areas, with increased activation in right temporal areas during listening.
  • Hippocampal activation patterns indicated memory encoding and hemispheric specialization.

Conclusions:

  • Short-term immersion abroad induces significant, modality-dependent functional network changes.
  • These neural shifts facilitate effective second language acquisition.
  • Findings highlight the brain's plasticity in response to new language learning.