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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 Development01:22

Language Development

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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.
The critical period for language acquisition suggests that the ability to acquire language is at its peak early in life. As people age, this proficiency decreases. Language development begins very...
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Neuroplasticity01:01

Neuroplasticity

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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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Components of Language01:24

Components of Language

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Language, whether spoken, signed, or written, consists of specific components: lexicon and grammar. The lexicon is the vocabulary of a language, comprising its words. Grammar is the set of rules used to convey meaning through the lexicon. For example, English grammar adds “-ed” to most verbs to indicate past tense. Words are formed by combining phonemes, which are the basic sound units of a language. Different languages have different sets of phonemes (e.g., “ah” vs.
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Perception01:28

Perception

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Perception is a fundamental psychological process that enables individuals to organize, interpret, and consciously experience sensory information. This process is crucial for understanding and interacting with the world around us. It includes both bottom-up and top-down processing, each playing a distinct role in how we perceive our environment.
Bottom-up processing begins at the sensory level, where receptors detect external environmental stimuli. These could include the tactile sensation of...
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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: Mar 3, 2026

Examining Bilingual Language Control Using the Stroop Task
05:31

Examining Bilingual Language Control Using the Stroop Task

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Missing the Mix: Perceiving Code-Switches as a Mechanism for Bilingual Adaptation.

Maria M Arredondo1, Stephanie Castro1

  • 1University of Texas at Austin.

Child Development Perspectives
|March 2, 2026
PubMed
Summary
This summary is machine-generated.

Bilingual infants exposed to code-switching show early attention differences. Further research is needed to understand how language mixing influences cognitive development in children.

Keywords:
adaptationattentionbilingualismcode-switchingcognitive advantage

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Area of Science:

  • Psycholinguistics
  • Developmental Psychology
  • Cognitive Neuroscience

Background:

  • Code-switching is a natural linguistic behavior in bilingual individuals.
  • Infants in bilingual environments often receive language mixing as input.
  • The nature of code-switching varies based on caregiver proficiency, context, and social factors.

Purpose of the Study:

  • To explore the impact of code-switching exposure on infant attention.
  • To investigate code-switching as a potential driver of cognitive adaptations in bilingual children.
  • To highlight the need for more research on children's exposure to code-switching.

Main Methods:

  • The study reviews existing literature on code-switching and infant attention.
  • It discusses behavioral, physiological, and neural measures of attention.
  • It emphasizes the necessity for robust measures of bilingual experiences, including code-switching.

Main Results:

  • Increased exposure to code-switching in infancy is linked to differences in attention.
  • These attention differences manifest at behavioral, physiological, and neural levels.
  • Current understanding of children's exposure to code-switching is limited.

Conclusions:

  • Exposure to code-switching may be a key mechanism for cognitive adaptations in bilingual children's attention.
  • More empirical evidence is required to substantiate this hypothesis.
  • Developing comprehensive methods to quantify code-switching is crucial for future research.