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Related Concept Videos

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 Development01:22

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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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Higher Mental Functions of the Brain: Language01:10

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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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Neuroplasticity01:01

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Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.
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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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Chunking and Rehearsal in Sensory Memory01:22

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Improving short-term memory can be achieved through techniques like chunking and rehearsal. Chunking involves organizing information into larger, more manageable units. This technique is particularly useful for information that exceeds the typical memory span of between five and nine items. For instance, logging into an online account with a password like "ta89vq0179gz" involves grouping letters and numbers into three chunks—ta89, vq01, and 79gz. It makes large amounts of...
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Related Experiment Video

Updated: Mar 1, 2026

Transcranial Direct Current Stimulation tDCS of Wernicke's and Broca's Areas in Studies of Language Learning and Word Acquisition
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Rapid short-term reorganization in the language network.

Gesa Hartwigsen1,2, Danilo Bzdok3,4,5, Maren Klein2

  • 1Department of Neuropsychology, Max Planck Institute for Human Cognitive and Brain Sciences Leipzig, Leipzig, Germany.

Elife
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Summary

The brain

Keywords:
aphasiahumanlesionneuroscienceparietal cortexsemanticstroketranscranial magnetic stimulation

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Linguistics

Background:

  • The brain's capacity to adapt and reorganize after injury, particularly within the language network, is not fully understood.
  • Investigating how different language networks (semantic and phonological) respond to disruption is crucial for understanding brain plasticity.

Purpose of the Study:

  • To investigate the adaptive potential and compensatory mechanisms within the brain's language network following targeted perturbations.
  • To explore the differential responses of semantic and phonological networks to functional disruption.

Main Methods:

  • Utilized brain perturbation techniques to selectively disrupt semantic and phonological regions in healthy individuals.
  • Monitored changes in neural activity, network interactions (e.g., inhibitory influence), and behavioral responses (response speed).

Main Results:

  • Perturbing a semantic region led to network-wide suppression and activation of neighboring phonological areas, with increased inhibition predicting response delays.
  • Disruption of semantic regions induced compensatory upregulation in phonological areas, suggesting a beneficial role.
  • Perturbing phonological regions caused suppression and behavioral deficits without compensatory upregulation, indicating differential network plasticity.

Conclusions:

  • The language network exhibits differential adaptive potential, with semantic and phonological networks responding distinctively to functional disruption.
  • Remote inhibitory influences play a functionally relevant role in cognitive compensation after neural perturbation.
  • Findings suggest general mechanisms of plasticity in cognitive networks, informing models of brain reorganization and language recovery.