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Executive Processes Underpin the Bilingual Advantage on Phonemic Fluency: Evidence From Analyses of Switching and Clustering
Department of Environmental Psychology, University of Gävle, Gävle, Sweden. School of Psychology, University of Central Lancashire, Preston, United Kingdom.
Department of Psychology, Umeå University, Umeå, Sweden.
Department of Psychology, Umeå University, Umeå, Sweden.
Luleå University of Technology, Department of Business Administration, Technology and Social Sciences, Humans and technology. Department of Psychology, Umeå University, Umeå, Sweden.ORCID iD: 0000-0001-5546-3270
2019 (English)In: Frontiers in Psychology, ISSN 1664-1078, E-ISSN 1664-1078, Vol. 10, article id 1355Article in journal (Refereed) Published
Abstract [en]

Bilinguals often show a disadvantage in lexical access on verbal fluency tasks wherein the criteria require the production of words from semantic categories. However, the pattern is more heterogeneous for letter (phonemic) fluency wherein the task is to produce words beginning with a given letter. Here, bilinguals often outperform monolinguals. One explanation for this is that phonemic fluency, as compared with semantic fluency, is more greatly underpinned by executive processes and that bilinguals exhibit better performance on phonemic fluency due to better executive functions. In this study, we re-analyzed phonemic fluency data from the Betula study, scoring outputs according to two measures that purportedly reflect executive processes: clustering and switching. Consistent with the notion that bilinguals have superior executive processes and that these can be used to offset a bilingual disadvantage in verbal fluency, bilinguals (35-65 years at baseline) demonstrated greater switching and clustering throughout the 15-year study period.

Place, publisher, year, edition, pages
Frontiers Media S.A., 2019. Vol. 10, article id 1355
Keywords [en]
bilingualism, aging, phonemic fluency, executive function, longitudinal study
National Category
Production Engineering, Human Work Science and Ergonomics
Research subject
Engineering Psychology
Identifiers
URN: urn:nbn:se:ltu:diva-75168DOI: 10.3389/fpsyg.2019.01355ISI: 000471303800001PubMedID: 31244740OAI: oai:DiVA.org:ltu-75168DiVA, id: diva2:1333460
Note

Validerad;2019;Nivå 2;2019-07-01 (johcin)

Available from: 2019-07-01 Created: 2019-07-01 Last updated: 2019-08-22Bibliographically approved

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Körning-Ljungberg, Jessica

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