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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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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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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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Related Experiment Video

Updated: Nov 11, 2025

Examining Bilingual Language Control Using the Stroop Task
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Bilingualism and Its Implications for Neuropsychological Evaluation.

Avanthi Paplikar1, Suvarna Alladi1,2, Feba Varghese1

  • 1Department of Neurology, National Institute of Mental Health and Neurosciences, Bengaluru, India.

Archives of Clinical Neuropsychology : the Official Journal of the National Academy of Neuropsychologists
|March 27, 2021
PubMed
Summary

This study found no significant performance differences between bilinguals and monolinguals on cognitive tests, suggesting separate neuropsychological testing data may not be needed. Recommendations are provided for testing bilingual populations.

Keywords:
AssessmentCross-cultural/minorityExecutive functionsFluencyLanguage and language disordersNorms/normative studies

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Psycholinguistics

Background:

  • Bilingualism globally impacts cognitive processes.
  • Neuropsychological testing standards for bilinguals are underdeveloped.
  • Investigating cognitive performance differences between bilinguals and monolinguals is crucial.

Purpose of the Study:

  • To develop standards for neuropsychological testing in bilingual individuals.
  • To compare cognitive test performance between bilinguals and monolinguals.
  • To determine the necessity of separate normative data for bilinguals.

Main Methods:

  • Administered the Indian Council of Medical Research-Neuro Cognitive Tool Box (ICMR-NCTB) to 530 participants (267 monolingual, 263 bilingual).
  • Developed a systematic method for cognitive testing in bilinguals, including language selection and examiner proficiency.
  • Compared the performance of bilinguals and monolinguals on the cognitive test battery.

Main Results:

  • Cognitive testing was conducted in participants' most proficient language by language-proficient examiners.
  • Language-based tests indicated that borrowed and mixed-language words require careful scoring consideration.
  • No significant differences in cognitive test performance were observed between bilingual and monolingual groups.

Conclusions:

  • The study offers robust recommendations for neuropsychological testing in bilingual contexts.
  • Separate normative data for bilinguals and monolinguals may not be necessary.
  • Provides a reference framework for addressing bilingual testing issues in diverse societies.