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Related Concept Videos

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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Language and Cognition01:27

Language and Cognition

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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.
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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.
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Language control network adapts to second language learning: A longitudinal rs-fMRI study.

Cong Liu1, Lu Jiao2, Zilong Li3

  • 1Department of Psychology, Normal College & School of Teacher Education, Qingdao University, Qingdao, China; Key Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, & Guangdong Provincial Key Laboratory of Mental Health and Cognitive Science, Center for Studies of Psychological Application, School of Psychology, South China Normal University, Guangzhou, China.

Neuropsychologia
|November 19, 2020
PubMed
Summary
This summary is machine-generated.

Learning a second language (L2) like English changes the brain's language control network. Functional MRI shows altered connectivity in areas like the dorsal anterior cingulate cortex (dACC) and pre-supplementary motor area (pre-SMA) after one year of classroom learning.

Keywords:
BilingualismLanguage controlLanguage switchNeuroplasticityResting-state fMRI

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Linguistics

Background:

  • Second language acquisition (L2) impacts cognitive functions.
  • Understanding neural changes during L2 learning is crucial.
  • The language control network's role in bilingualism requires further investigation.

Purpose of the Study:

  • To investigate longitudinal changes in the brain's language control network after one year of L2 English classroom learning.
  • To correlate neural network alterations with behavioral performance in language switching.
  • To identify key brain regions involved in L2-induced language control modulation.

Main Methods:

  • Longitudinal resting-state functional magnetic resonance imaging (fMRI) was employed.
  • Graph theory and functional connectivity analyses were conducted.
  • Behavioral assessment using a language switching task was performed.

Main Results:

  • Nodal betweenness in language control areas, including the dorsal anterior cingulate cortex (dACC), decreased with L2 exposure.
  • Increased functional connectivity was observed between the dACC and pre-supplementary motor area (pre-SMA).
  • These neural changes correlated significantly with improved behavioral performance on the language switching task.

Conclusions:

  • Long-term L2 learning in a classroom setting modulates the resting-state language control network.
  • The dACC/pre-SMA complex plays a critical role in L2 language control.
  • Neural plasticity in language networks is evident after sustained L2 immersion.