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The brain's left side is the dominant side utilized for producing and understanding sign language, just as it is for speech. [1] In 1861, Paul Broca studied patients with the ability to understand spoken languages but the inability to produce them.
Neuroscience of multilingualism is the study of multilingualism within the field of neurology.These studies include the representation of different language systems in the brain, the effects of multilingualism on the brain's structural plasticity, aphasia in multilingual individuals, and bimodal bilinguals (people who can speak at least one sign language and at least one oral language).
An observed difference in location for phonological processing between spoken language and sign language is the activation of areas of the brain specific to auditory vs. visual stimuli. Because of the modality differences, the cortical regions will be stimulated differently depending on which type of language it is.
This same activation happens with any language modality, meaning the brain is activated whether the language is written, signed, or spoken. [9] A 2021 study used event-related potential (ERP) to track the brain's language switch in bimodal bilinguals and measured a brain response pattern not found in unimodal bilinguals. [10]
Many different sources state that the study of the brain, and therefore, language disorders, originated in the 19th century, and linguistic analysis of those disorders began in the 20th century. [2] Studying language impairments in the brain after injuries aids in comprehending how the brain works and changes after an injury.
Brain training (also called cognitive training) is a program of regular activities purported to maintain or improve one's cognitive abilities. The phrase “cognitive ability” usually refers to components of fluid intelligence such as executive function and working memory .
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Research in first language acquisition has already established that infants from all linguistic environments go through similar and predictable stages (such as babbling), and some neurolinguistics research attempts to find correlations between stages of language development and stages of brain development, [27] while other research investigates ...
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