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Degree of multilingual engagement modulates resting state oscillatory activity across the lifespan

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  • Toms Voits
  • Vincent DeLuca
  • Jiuzhou Hao
  • Kirill Elin
  • Jubin Abutalebi
  • Jon Andoni Duñabeitia
  • Gaute Berglund
  • Anders Gabrielsen
  • Janine Rook
  • Hilde Thomsen
  • Philipp Waagen
  • Jason Rothman
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<mark>Journal publication date</mark>31/08/2024
<mark>Journal</mark>Neurobiology of Aging
Volume140
Number of pages11
Pages (from-to)70-80
Publication StatusPublished
Early online date11/05/24
<mark>Original language</mark>English

Abstract

Multilingualism has been demonstrated to lead to a more favorable trajectory of neurocognitive aging, yet our understanding of its effect on neurocognition across the lifespan remains limited. We collected resting state EEG recordings from a sample of multilingual individuals across a wide age range. Additionally, we obtained data on participant multilingual language use patterns alongside other known lifestyle enrichment factors. Language experience was operationalized via a modified multilingual diversity (MLD) score. Generalized additive modeling was employed to examine the effects and interactions of age and MLD on resting state oscillatory power and coherence. The data suggest an independent modulatory effect of individualized multilingual engagement on age-related differences in whole brain resting state power across alpha and theta bands, and an interaction between age and MLD on resting state coherence in alpha, theta, and low beta. These results provide evidence of multilingual engagement as an independent correlational factor related to differences in resting state EEG power, consistent with the claim that multilingualism can serve as a protective factor in neurocognitive aging.

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