Bilingualism reduces associations between cognition and the brain at baseline, but does not show evidence of cognitive reserve over time

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Xehetasun bibliografikoak
Argitaratua izan da:Bilingualism vol. 28, no. 1 (Jan 2025), p. 66
Egile nagusia: Elliott, Meghan R
Beste egile batzuk: Mungas, Dan M, Miguel Arce Rentería, Whitmer, Rachel A, DeCarli, Charles, Fletcher, Evan M
Argitaratua:
Cambridge University Press
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Sarrera elektronikoa:Citation/Abstract
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Full Text - PDF
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022 |a 1366-7289 
022 |a 1469-1841 
024 7 |a 10.1017/S1366728924000105  |2 doi 
035 |a 3248699642 
045 2 |b d20250101  |b d20250131 
084 |a 79004  |2 nlm 
100 1 |a Elliott, Meghan R  |u Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA; University of California, Davis Department of Neurology, Davis, CA, USA 
245 1 |a Bilingualism reduces associations between cognition and the brain at baseline, but does not show evidence of cognitive reserve over time 
260 |b Cambridge University Press  |c Jan 2025 
513 |a Journal Article 
520 3 |a Studies suggest that bilingualism may be associated with better cognition, but the role of active bilingualism, the daily use of two languages, on cognitive trajectories remains unclear. One hypothesis is that frequent language switching may protect cognitive trajectories against effects of brain atrophy. Here, we examined interaction effects between language and brain variables on cognition among Hispanic participants at baseline (N = 153) and longitudinally (N = 84). Linguistic measures included self-reported active Spanish–English bilingualism or Spanish monolingualism. Brain measures included, at baseline, regions of gray matter (GM) thickness strongly correlated with cross-sectional episodic memory and executive function and longitudinally, tissue atrophy rates correlated with episodic memory and executive function change. Active Spanish–English bilinguals showed reduced association strength between cognition and gray matter thickness cross-sectionally, β=0.303, p < .01 but not longitudinally, β=0.024, p = 0.105. Thus, active bilingualism may support episodic memory and executive function despite GM atrophy cross-sectionally, but not longitudinally. 
651 4 |a United States--US 
651 4 |a California 
653 |a Language 
653 |a Alzheimer's disease 
653 |a Spanish language 
653 |a English language 
653 |a Code switching 
653 |a Memory 
653 |a Brain 
653 |a Brain research 
653 |a Self report 
653 |a Cognitive ability 
653 |a Cognition & reasoning 
653 |a Executive function 
653 |a Knowledge 
653 |a Dementia 
653 |a Episodic memory 
653 |a Bilingualism 
653 |a Atrophy 
653 |a Cognition 
653 |a Education 
653 |a Genetic engineering 
653 |a Function 
653 |a Monolingualism 
653 |a Languages 
653 |a Brain atrophy 
653 |a Bilingual people 
653 |a Semantics 
653 |a Neurology 
653 |a Language Usage 
653 |a Code Switching (Language) 
653 |a Adult Learning 
653 |a Academic Achievement 
653 |a Second Languages 
653 |a Cognitive Measurement 
653 |a Outcome Measures 
653 |a Evidence 
653 |a Short Term Memory 
653 |a Longitudinal Studies 
653 |a Language Proficiency 
653 |a Aging (Individuals) 
653 |a Definitions 
653 |a Japanese 
653 |a Algorithms 
700 1 |a Mungas, Dan M  |u University of California, Davis Department of Neurology, Davis, CA, USA 
700 1 |a Miguel Arce Rentería  |u Columbia University Medical Center, New York, NY, USA 
700 1 |a Whitmer, Rachel A  |u University of California, Davis Department of Public Health Sciences, Division of Epidemiology, Davis, CA, USA 
700 1 |a DeCarli, Charles  |u University of California, Davis Department of Neurology, Davis, CA, USA 
700 1 |a Fletcher, Evan M  |u University of California, Davis Department of Neurology, Davis, CA, USA 
773 0 |t Bilingualism  |g vol. 28, no. 1 (Jan 2025), p. 66 
786 0 |d ProQuest  |t Arts & Humanities Database 
856 4 1 |3 Citation/Abstract  |u https://www.proquest.com/docview/3248699642/abstract/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch 
856 4 0 |3 Full Text  |u https://www.proquest.com/docview/3248699642/fulltext/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch 
856 4 0 |3 Full Text - PDF  |u https://www.proquest.com/docview/3248699642/fulltextPDF/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch