Add Bilingualism to the Mix: L2 Proficiency Modulates the Effect of Cognitive Reserve Proxies on Executive Performance in Healthy Aging

We investigated the contribution of bilingual experience to the development of cognitive reserve (CR) when compared with other, traditionally more researched, CR proxies, in a sample of cognitively healthy senior (60 +) bilingual speakers. Participants performed in an online study where, in addition...

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Main Authors: Federico Gallo, Joanna Kubiak, Andriy Myachykov
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-01-01
Series:Frontiers in Psychology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fpsyg.2022.780261/full
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author Federico Gallo
Federico Gallo
Joanna Kubiak
Andriy Myachykov
Andriy Myachykov
author_facet Federico Gallo
Federico Gallo
Joanna Kubiak
Andriy Myachykov
Andriy Myachykov
author_sort Federico Gallo
collection DOAJ
description We investigated the contribution of bilingual experience to the development of cognitive reserve (CR) when compared with other, traditionally more researched, CR proxies, in a sample of cognitively healthy senior (60 +) bilingual speakers. Participants performed in an online study where, in addition to a wide inventory of factors known to promote CR, we assessed several factors related to their second language (L2) use. In addition, participants’ inhibitory executive control was measured via the Flanker Task. We used Structural Equation Modeling to derive a latent composite measure of CR informed by traditional CR proxies (i.e., occupational complexity, marital status, current and retrospective socio-economic status, physical exercise, perceived positive support, maximal educational attainment, frequency of leisure activities and extent of social network). We examined whether bilingualism may act as a mediator of the effects of such proxies on cognitive performance therefore assessing the unique contribution of dual language use to CR. First, our analyses revealed facilitatory effects of both L2 age of acquisition and L2 proficiency on the executive performance. Second, our analyses confirmed the moderating role of bilingual experience on the relationship between other factors known to promote CR and cognitive integrity, revealing a strong contribution by bilingualism to CR development. Our findings provide further support to the notion that bilingualism plays an important role in mitigating cognitive decline and promoting successful aging.
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spelling doaj.art-668fb2ce206748d88acb7074eac0130d2022-12-22T04:10:13ZengFrontiers Media S.A.Frontiers in Psychology1664-10782022-01-011310.3389/fpsyg.2022.780261780261Add Bilingualism to the Mix: L2 Proficiency Modulates the Effect of Cognitive Reserve Proxies on Executive Performance in Healthy AgingFederico Gallo0Federico Gallo1Joanna Kubiak2Andriy Myachykov3Andriy Myachykov4Centre for Cognition and Decision Making, Higher School of Economics, Institute for Cognitive Neuroscience, Moscow, RussiaCentre for Neurolinguistics and Psycholinguistics, Vita-Salute San Raffaele University, Milan, ItalyDepartment of Psychology, Northumbria University, Newcastle upon Tyne, United KingdomCentre for Cognition and Decision Making, Higher School of Economics, Institute for Cognitive Neuroscience, Moscow, RussiaDepartment of Psychology, Northumbria University, Newcastle upon Tyne, United KingdomWe investigated the contribution of bilingual experience to the development of cognitive reserve (CR) when compared with other, traditionally more researched, CR proxies, in a sample of cognitively healthy senior (60 +) bilingual speakers. Participants performed in an online study where, in addition to a wide inventory of factors known to promote CR, we assessed several factors related to their second language (L2) use. In addition, participants’ inhibitory executive control was measured via the Flanker Task. We used Structural Equation Modeling to derive a latent composite measure of CR informed by traditional CR proxies (i.e., occupational complexity, marital status, current and retrospective socio-economic status, physical exercise, perceived positive support, maximal educational attainment, frequency of leisure activities and extent of social network). We examined whether bilingualism may act as a mediator of the effects of such proxies on cognitive performance therefore assessing the unique contribution of dual language use to CR. First, our analyses revealed facilitatory effects of both L2 age of acquisition and L2 proficiency on the executive performance. Second, our analyses confirmed the moderating role of bilingual experience on the relationship between other factors known to promote CR and cognitive integrity, revealing a strong contribution by bilingualism to CR development. Our findings provide further support to the notion that bilingualism plays an important role in mitigating cognitive decline and promoting successful aging.https://www.frontiersin.org/articles/10.3389/fpsyg.2022.780261/fullbilingualismcognitive agingcognitive reservecognitive reserve proxiesexecutive functions
spellingShingle Federico Gallo
Federico Gallo
Joanna Kubiak
Andriy Myachykov
Andriy Myachykov
Add Bilingualism to the Mix: L2 Proficiency Modulates the Effect of Cognitive Reserve Proxies on Executive Performance in Healthy Aging
Frontiers in Psychology
bilingualism
cognitive aging
cognitive reserve
cognitive reserve proxies
executive functions
title Add Bilingualism to the Mix: L2 Proficiency Modulates the Effect of Cognitive Reserve Proxies on Executive Performance in Healthy Aging
title_full Add Bilingualism to the Mix: L2 Proficiency Modulates the Effect of Cognitive Reserve Proxies on Executive Performance in Healthy Aging
title_fullStr Add Bilingualism to the Mix: L2 Proficiency Modulates the Effect of Cognitive Reserve Proxies on Executive Performance in Healthy Aging
title_full_unstemmed Add Bilingualism to the Mix: L2 Proficiency Modulates the Effect of Cognitive Reserve Proxies on Executive Performance in Healthy Aging
title_short Add Bilingualism to the Mix: L2 Proficiency Modulates the Effect of Cognitive Reserve Proxies on Executive Performance in Healthy Aging
title_sort add bilingualism to the mix l2 proficiency modulates the effect of cognitive reserve proxies on executive performance in healthy aging
topic bilingualism
cognitive aging
cognitive reserve
cognitive reserve proxies
executive functions
url https://www.frontiersin.org/articles/10.3389/fpsyg.2022.780261/full
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