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Keijzer, Prof. Merel

Merel Keijzer
Merel Keijzer

Merel Keijzer is Professor of Linguistics & English as a Second Language. She performs her research on second language acquisition and bilingualism, with a special focus on multilingualism and aging. What is the best way (for the elderly) to learn English and can English learning have a positive effect on (mental) health? In her new position as Professor she will focus on developing education in the field of English linguistics and English language development, from primary school to bilingual secondary education, as well as conduct research into existing English language methods, language education to the elderly and cognitive effects.

Keijzer specializes in the language and cognitive control of bilingual people throughout their lives, with a special focus on bilingualism and cognitive ageing. She uses techniques from both behavioural psychology and neuro-imaging to chart the effects that patterns in the language use of individual bilingual people have on the type and extent of cognitive benefit at a later age. She also studies how using two languages can be isolated from other factors that influence the cognitive reserve, such as musical training, stimulating social activities and physical exercise. In 2018 Keijzer was awarded a Vidi grant. In het project she will research the effectiveness of foreign language learning for healthy older people and for those with mild cognitive impairment and late-life depression.

In 2017 Merel Keijzer joined De Jonge Akademie (DJA), a platform within the Royal Netherlands Academy of Arts and Sciences (KNAW) for young, world-class scientists and scholars with an innovative vision on science and scholarship and related policy.

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Publications

2024

van den Berg, F., Buurke, R., Brouwer, J., Loerts, H., Knooihuizen, R., Bartelds, M., Wieling, M., & Keijzer, M. (Accepted/In press). The relationship between bilingual engagement and cognitive aging in regional minority-majority language contexts: A Lifelines study.

2023

Keijzer, M., Brouwer, J., van den Berg, F., & van der Ploeg, M. (2023). Experimental methods to study late-life language learning. In S. Zufferey, & P. Gygax (Eds.), The Routledge Handbook of Experimental Linguistics (pp. 473-485). Routledge/Taylor & Francis Group. https://doi.org/10.4324/9781003392972-34
Wirth, B. D., Auer, A., & Keijzer, M. (2023). First language attrition: Bridging sociolinguistic narratives and psycholinguistic models of attrition. In L. Wei, Z. Hua, & J. Simpson (Eds.), The Routledge Handbook of Applied Linguistics: Volume Two, Second Edition (2 ed., Vol. 2, pp. 243-253). Taylor and Francis Inc.. https://doi.org/10.4324/9781003082637_20
van den Berg, F., Brouwer, J., Loerts, H., Knooihuizen, R., & Keijzer, M. (2023). Foreign language learning as a potential healthy aging tool to stimulate cognition and well-being in older adults: A randomized controlled study. Abstract from International Symposium on Bilingualism, Sydney, Australia.
van den Berg, F., Brouwer, J., Loerts, H., Knooihuizen, R., & Keijzer, M. (2023). Foreign language learning as a potential healthy aging tool to stimulate cognition and well-being in older adults: A randomized controlled study.
van der Ploeg, M., Keijzer, M., & Lowie, W. (2023). Language learning, motivation, and well-being in later life. Social Sciences and Humanities Open, 8(1), Article 100749. https://doi.org/10.1016/j.ssaho.2023.100749
Van Der Ploeg, M., Keijzer, M., & Lowie, W. (2023). Language pedagogies and late-life language learning proficiency. IRAL - International Review of Applied Linguistics in Language Teaching. Advance online publication. https://doi.org/10.1515/iral-2023-0079
Brouwer, J., van den Berg, F., Knooihuizen, R., Loerts, H., & Keijzer, M. (2023). Late-life language learning as a socially and cognitively stimulating leisure activity in healthy older adults and those with a history of depression. International Symposium on Bilingualism, Sydney, Australia.
van Kampen, E., van den Berg, F., Brouwer, J., & Keijzer, M. (2023). Never too old to learn - Third age adults experience little (self-)ageism or barriers to learning. Social Sciences & Humanities Open, 7(1), Article 100384. https://doi.org/10.1016/j.ssaho.2022.100384
Porkert, J., Loerts, H., Schüppert, A., & Keijzer, M. (2023). Pronouns in the brain. In L. L. Paterson (Ed.), The Routledge Handbook of Pronouns (pp. 89-103). Routledge, Taylor and Francis group. https://doi.org/10.4324/9781003349891-9
Keijzer, M., & Seton, B. (2023). Second Language Neurocognition and First Language Attrition. In K. Morgan-Short, & J. G. van Hell (Eds.), The Routledge Handbook of Second Language Acquisition and Neurolinguistics (pp. 302-313). Taylor & Francis Group. https://doi.org/10.4324/9781003190912-28
van der Ploeg, M., Lowie, W., & Keijzer, M. (2023). The Effects of Language Teaching Pedagogy on Cognitive Functioning in Older Adults. Behavioral Sciences, 13(3), Article 199. https://doi.org/10.3390/bs13030199

2022

Nijmeijer, S. E., van Tol, M.-J., Aleman, A., & Keijzer, M. (2023). Musical and multilingual experience are related to healthy aging: better some than none but even better together. The Journals of Gerontology. Series B: Psychological Sciences and Social Sciences, 78(4). https://doi.org/10.1093/geronb/gbac185
Drury, M., Fuller, J. M., & Keijzer, M. (2022). Biodiversity Communication at the UN Summit 2020: Blending Business and Nature. Discourse & Communication, 16(1), 37-57. https://doi.org/10.1177/17504813211043720
Verspoor, M., Kassenberg, T., Keijzer, M., & Poarch, G. (2022). English Sentence Constructions. John Benjamins Publishers. https://doi.org/10.1075/z.240
van den Berg, F., Brouwer, J., Tienkamp, T., Verhagen, J., & Keijzer, M. (2022). Language Entropy Relates to Behavioral and Pupil Indices of Executive Control in Young Adult Bilinguals. Frontiers in Psychology, 13, Article 864763. https://doi.org/10.3389/fpsyg.2022.864763
Brouwer, J., van den Berg, F., van der Feen, J., Loerts, H., Sturge, J., Knooihuizen, R., & Keijzer, M. (2022). Language learning in older adults with a history of depression: a qualitative study of participants’ expectations and experiences. Poster session presented at Workshop Language learning in older adults: Interdisciplinary perspectives, Colchester, United Kingdom.
van den Berg, F., Brouwer, J., Loerts, H., Knooihuizen, R., & Keijzer, M. (2022). Language learning to boost episodic memory in older adults with and without cognitive impairment. Poster session presented at ISBPAC - 4th International Symposium on Bilingual and L2 Processing in Adults and Children, Tromsø, Norway.
Brouwer, J., Buurke, R., van den Berg, F., Loerts, H., Knooihuizen, R., Wieling, M., & Keijzer, M. (2022). Minority language happiness: The link between social inclusion, well-being, and speaking Frisian in the Northern Netherlands. Poster session presented at Cognitive Aging Conference, 2022, Atlanta, GA, United States.
Brouwer, J., Buurke, R., van den Berg, F., Knooihuizen, R., Loerts, H., Wieling, M., & Keijzer, M. (2022). Minority language happiness: The link between social inclusion, well-being, and speaking Frisian in the Northern Netherlands. Poster session presented at ISBPAC - 4th International Symposium on Bilingual and L2 Processing in Adults and Children, Tromsø, Norway.
van der Ploeg, M., Willemsen, A., Richter, L., Keijzer, M., & Koole, T. (2022). Requests for assistance in the third-age language classroom. Classroom Discourse, 13(4), 386-406. https://doi.org/10.1080/19463014.2021.2013910
van den Berg, F., Brouwer, J., Loerts, H., Knooihuizen, R., & Keijzer, M. (2022). The contribution of individual bilingual life experiences to cognitive reserve. Poster session presented at Cognitive Aging Conference, 2022, Atlanta, GA, United States.

2021

Groen, L., Keijzer, M., Michel, M., & Lowie, W. (2021). An English academic reading course for Dutch pre-university students. Dutch Journal of Applied Linguistics, 9(1-2), 207-214. https://doi.org/10.1075/dujal.19042.gro
Nijmeijer, S. E., van Tol, M. .-J., Aleman, A., & Keijzer, M. (2021). Foreign Language Learning as Cognitive Training to Prevent Old Age Disorders? Protocol of a Randomized Controlled Trial of Language Training vs. Musical Training and Social Interaction in Elderly With Subjective Cognitive Decline. Frontiers in Aging Neuroscience, 13, Article 550180. https://doi.org/10.3389/fnagi.2021.550180
Tienkamp, T., van den Berg, F., Brouwer, J., Verhagen, J., & Keijzer, M. (2021). Investigating language entropy as a predictor of cognitive control in bilinguals using pupillometry. Poster session presented at International Symposium on Bilingualism, Warsaw, Poland.

2020

Brouwer, J., Berg, van den, F., Knooihuizen, R., Loerts, H., & Keijzer, M. (2020). Can foreign language learning boost cognitive flexibility in late-life depression?. Poster session presented at BCN Winter Meeting 2020, Groningen, Netherlands.
Keijzer, M. (2020). Cognitieve, talige en sociale effecten van het leren van vreemde talen in ouderen. Paper presented at WAP-Symposium Taal en het Brein, Amsterdam, Netherlands.
Gombert, W., Keijzer, M., & Verspoor, M. (2020). Effectiviteit van expliciete en impliciete instructie op de ontwikkeling van schrijfvaardigheid bij Frans. Levende Talen Tijdschrift, 21(1), 14-24.
Brouwer, J., Berg, van den, F., Knooihuizen, R., Loerts, H., & Keijzer, M. (2020). Exploring Language Learning as a Potential Tool against Cognitive Impairment in Late-Life Depression: Two Meta-Analyses and Suggestions for Future Research. Behavioral Sciences, 10(9), Article 132. https://doi.org/10.3390/bs10090132
Keijzer, M. (2020). First language attrition in the twenty-first century: How continued L2 contact in the digital age fuels language attrition theorizing. In E. Adamou, & Y. Matras (Eds.), The Routledge Handbook of Language Contact (pp. 221-233). (Routledge Handbooks in Linguistics). Routledge.
Brouwer, J., Berg, van den, F., Loerts, H., Knooihuizen, R., & Keijzer, M. (2020). Foreign Language Learning as an Innovative Healthy Aging Tool. Abstract from Aletta's Talent Network Junior Research Meet-Up, Groningen, Netherlands.
Berg, van den, F., Brouwer, J., Loerts, H., Knooihuizen, R., & Keijzer, M. (2020). Foreign language learning to boost cognitive flexibility in healthy seniors and those with Mild Cognitive Impairment. Poster session presented at BCN Winter Meeting 2020, Groningen, Netherlands.
Berg, van den, F., Brouwer, J., Loerts, H., Knooihuizen, R., & Keijzer, M. (Accepted/In press). Foreign language learning to promote cognitive flexibility and well-being in healthy seniors and those with Mild Cognitive Impairment. Poster session presented at Bilingualism and the Brain, Tromsø, Norway.
Berg, van den, F., Brouwer, J., Loerts, H., Knooihuizen, R., & Keijzer, M. (Accepted/In press). Foreign Language Learning to Promote Cognitive Flexibility in Healthy Seniors, Mild Cognitive Impairment, and Late-life Depression: [cancelled/postponed due to COVID-19]. Abstract from Anéla / VIOT Juniorendag, Groningen.
van der Ploeg, M., Keijzer, M., & Lowie, W. (2020). Methodological concerns and their solutions in third-age language learning studies. Dutch Journal of Applied Linguistics, 9(1-2), 97-108. https://doi.org/10.1075/dujal.19036.van
Lowie, W., Michel, M., Rousse-Malpat, A., Keijzer, M., & Steinkrauss, R. (Eds.) (2020). Usage-Based Dynamics in Second Language Development. Multilingual Matters Ltd.

2019

Keijzer, M. (2019). A lifetime of controlling experiences: Bilingualism as an experience-dependent mechanism governing aging. Paper presented at Approaches to migration, language and identity, Essen, Germany.
Berg, van den, F., Rossi, E., Keijzer, M., & Kroll, J. (2019). Boosting cognition in older adults by means of foreign language learning. Poster session presented at Tabu dag 2019, Groningen, Netherlands.
Keijzer, M. (2019). Een nieuwe taal leren als middel om gezond ouder te worden? Het verband tussen meertaligheid en volksgezondheid. Paper presented at KNAW Symposium Meertalig Nederland, Amsterdam, Netherlands.
Berg, van den, F., Brouwer, J., Loerts, H., Knooihuizen, R., & Keijzer, M. (Accepted/In press). Foreign language learning to promote cognitive flexibility in healthy seniors and Mild Cognitive Impairment. Poster session presented at Cognitive Aging Conference 2020, Atlanta, Georgia, United States.
Brouwer, J., Berg, van den, F., Knooihuizen, R., Loerts, H., & Keijzer, M. (Accepted/In press). Foreign language learning to promote cognitive flexibility in Mild Cognitive Impairment and Late-Life Depression. Poster session presented at World Congress of Applied Linguistics 2020, Groningen, Netherlands.
Nijmeijer, S. E., van Tol, M. .-J., & Keijzer, M. (2019). Learning to preserve: foreign language training as a cognitive ‘vaccine’ to prevent old-age disorders?. Abstract from Cognitive Aging Conference 2020, Atlanta, Georgia, United States.
Brouwer, J., Berg, van den, F., Knooihuizen, R., Loerts, H., & Keijzer, M. (Accepted/In press). Predicting the Effects of Language Learning on Cognition and Well-being in Late-Life Depression: A systematic review and future directions [cancelled/postponed due to COVID-19]. Poster session presented at Cognitive Aging Conference 2020, Atlanta, Georgia, United States.
Kopke, B., & Keijzer, M. (2019). Psycholinguistic and neurolinguistic approaches to language attrition. In M. S. Schmid, & B. Kopke (Eds.), The Oxford Handbook of Language Attrition (pp. 63-72). Oxford University Press.
Pot, A., Porkert, J., & Keijzer, M. (2019). The Bidirectional in Bilingual: Cognitive, Social and Linguistic Effects of and on Third-Age Language Learning. Behavioral Sciences, 9(9), Article 98. https://doi.org/10.3390/bs9090098

2018

Pot, A., Keijzer, M., & de Bot, K. (2020). The language barrier in migrant aging. International Journal of Bilingual Education and Bilingualism, 23(9), 1139-1157. https://doi.org/10.1080/13670050.2018.1435627
Pot, A., Keijzer, M., & de Bot, K. (2018). De taalbarrière bij oudere Turkse vrouwen nader onderzocht. Tijdschrift voor Gerontologie en Geriatrie, 49(6), 274-282. https://doi.org/10.1007/s12439-018-0270-8
Pot, A., Keijzer, M., & de Bot, K. (2018). Do low L2 abilities impede healthy aging for migrant older adults in the Netherlands? Dutch Journal of Applied Linguistics, 7(1), 109-120. https://doi.org/10.1075/dujal.17017.pot
Nijmeijer, S., Keijzer, M., & van Tol, M. .-J. (2018). Foreign language training in seniors to prevent old-age disorders: protocol of a randomized controlled trial. Poster session presented at CoNSALL: Cognitive Neuroscience of Second and Artificial Language Learning, Bangor, United Kingdom.
Nijmeijer, S., Keijzer, M., & van Tol, M. .-J. (2018). Foreign language training in seniors to prevent old-age disorders: protocol of a randomized controlled trial. Poster session presented at ISB: International Symposium on Bilingualism, Edmonton, Alberta, Canada.
Nijmeijer, S., van Tol, M. .-J., & Keijzer, M. (2018). Foreign language training in seniors to prevent old-age disorders: protocol of a randomized controlled trial. Poster session presented at Conference on Multilingualism 2018, Ghent, Belgium.
Pot, A., Keijzer, M., & de Bot, K. (2018). Intensity of Multilingual Language Use Predicts Cognitive Performance in Some Multilingual Older Adults. Brain Sciences, 8(92). https://doi.org/10.3390/brainsci8050092
Brouwer, J., Dirix, N., Keijzer, M., & Woumans, E. (2018). Investigating affective processing in the second language using the Ghent Eye-Tracking Corpus. Poster session presented at Conference on Multilingualism 2018, Ghent, Belgium.
Vandeweerd, N., & Keijzer, M. (2018). J'ai l'impression que: Lexical bundles in the dialogues of beginner French textbooks. Canadian Journal of Applied Linguistics, 21(2), 80-101.
Eyer, I., Rossi, E., Keijzer, M., Kroll, J. F., & Berg, van den, F. (2018). The linguistic and neural effects or short-term novel language learning: the role of exposure. Paper presented at Conference on Multilingualism 2018, Ghent, Belgium.
Keijzer, M., & de Bot, C. (2018). Unlearning and relearning of languages from childhood to late adulthood. In A. de Houwer, & L. Ortega (Eds.), The Cambridge Handbook of Bilingualism (pp. 267-286). Cambridge University Press. https://doi.org/10.1017/9781316831922.015

2017

Jin, Y., de Bot, K., & Keijzer, M. (2017). Affective and situational correlates of foreign language proficiency: A study of Chinese university learners of English and Japanese. Studies in Second Language Learning and Teaching, 7(1), 105-126. https://doi.org/10.14746/ssllt.2017.7.1.6
Keijzer, M. (2017). Bilingualism and Healthy Aging. Paper presented at Merhsprachigkeitskolloquium, Dortmund, Germany.
Keijzer, M. (2017). Bilingualism in older adulthood. Paper presented at Invited lecture series University of Munster, Munster, Germany.
Pot, A., Keijzer, M., & de Bot, C. (2017). Enhancing language awareness in migrants' third age to promote well-being. In D. Gabrys-Barker (Ed.), Third Age Learners of Foreign Languages (pp. 176-200). Multilingual Matters Ltd.
Keijzer, M. (2017). First language reversion among older healthy migrants: Fact or fable? . Paper presented at AAAL - American Association of Applied Linguistics, Portland OR, United States.
Keijzer, M., & Schmid, M. (2017). Individual differences in cognitive control advantages of elderly late Dutch-English bilinguals. In E. Bialystok, & M. D. Sullivan (Eds.), Growing old with two languages: Effects of bilingualism on cognitive aging (pp. 77-98). (Studies in Bilingualism; Vol. 53). John Benjamins Publishers.
Keijzer, M., & Tol, van, M. J. (2017). Learning to preserve: Foreign language therapy as a cognitive vaccine to prevent old-age disorders. Poster session presented at Bi/multilingualism and the declining brain, Reading, United Kingdom.
Keijzer, M. (2017). The relevance of L1 attrition to usage-based theories of language development. Linguistic Approaches to Bilingualism, 7(6), 715-718. https://doi.org/10.1075/lab.00011.kei

2016

Irshad, F. M., Keijzer, M., Wieling, M., & Verspoor, M. (2019). Effectiveness of a dynamic usage based computer assisted language program. Dutch Journal of Applied Linguistics, 8(2), 137-162. https://doi.org/10.1075/dujal.16018.irs
Keijzer, M. (2016). How new L2 words (don't) become memories: Lexicalization in advanced L1 Dutch learners of L2 English as part of a longitudinal study. Paper presented at Conference on Multilingualism 2016, Ghent, Belgium.
Keijzer, M. (2016). How new words (don't) become memories: Lexicalization in advanced L1 Dutch learners of L2 English. Paper presented at AAAL - American Association of Applied Linguistics, Orlando, United States.
Keijzer, M. (2016). Invited talk: Individual differences in cognitive control advantages of elderly late Dutch-English bilinguals. Paper presented at Amsterdam Center for Language and Cognition lecture series, Amsterdam , Netherlands.
Keijzer, M. (2016). Plenary address: Aging attriters: How methodological challenges can help construct bilingual theories . Paper presented at International Conference on Language Attrition 3, Colchester, United Kingdom.
Keijzer, M. (2016, Jan). Taalverwerving in meerlingen. Nederlandse Vereniging voor Ouders van Meerlingen (NVOM) Infomeerling webpages.

2015

Keijzer, M. (2015). Code-switching behavior of late Dutch-English bilinguals and its relation to inhibition task outcomes. Paper presented at Anéla 2015 Conferentie Toegepaste Taalwetenschap, Egmond aan Zee, Netherlands.
Jin, Y., de Bot, K., & Keijzer, M. (2015). Factors associated with foreign language anxiety: A study of Chinese university learners of Japanese and English. Dutch Journal of Applied Linguistics, 4(1), 66-84. https://doi.org/10.1075/dujal.4.1.07jin
Keijzer, M. (2015). From emigrant to expat: Changed perspectives on first language attrition in a digital era. Paper presented at AILA Europe Conference, Winterthur, Switzerland.
Keijzer, M. (2015). Individual differences in cognitive and language control among late, aging Dutch-English bilinguals. Paper presented at ML4U workshop - Multilingualism across the Lifespan, Gent, Belgium.
Keijzer, M., & Schmid, M. (2015). Individual differences in cognitive control advantages of elderly late Dutch-English bilinguals. Linguistic Approaches to Bilingualism, 6(1/2), 64-85.
Keijzer, M. (2015). Language attrition: Where are we and where are we going? . Paper presented at Language and speech colloquium on attrition, Nijmegen, Netherlands.
Jin, Y., de Bot, K., & Keijzer, M. (2015). The anxiety-proficiency relationship and the stability of anxiety: The case of Chinese university learners of English and Japanese. Studies in Second Language Learning and Teaching, 5(1), 41-64. https://doi.org/10.14746/ssllt.2015.5.1.3

2014

Keijzer, M. (2014). A hole in my brain where my first language used to be: A cognitive approach to first language attrition .
Keijzer, M. (2014). Are good learners also good forgetters? A retrieval induced forgetting perspective of L1 attrition in an L2 immersed context. Paper presented at Language development across the lifespan lecture series (LANSPAN), Groningen, Netherlands.
Keijzer, M. (2014). Bilingual language use: Consequences for usage-based theories of language development. Paper presented at Georgetown University Round Table of Languages and Linguistics , Washington DC, United States.
Keijzer, M. (2014). Changes in neural activation patterns and brain anatomy as a function of non-pathological first language attrition. Journal of Neurological Disorders, 2(4). https://doi.org/10.4172/2329-6895.1000171
Keijzer, M. (2014). The bilingual cognitive advantage. Dutch Courier.
Keijzer, M. (2014). Worden tweetaligen later dement? In S. Deurloo, & A. van Kessel (Eds.), Waarom drinken we zoveel koffie?: 101 slimme vragen Bertram en de Leeuw Uitgevers BV.
Keijzer, M. (2014, Mar). Worden tweetaligen later dement? Kennislink. http://www.kennislink.nl

2013

Hoeijmakers, M., de Bree, E., & Keijzer, M. (2013). English spelling performance of Dutch grammar school students of derived and base targets. Dutch Journal of Applied Linguistics, 2(2), 152-169.
Keijzer, M. (2013). Language and cognitive control in late Dutch-English bilinguals and Dutch-Low Saxon bidialectals. Paper presented at Center for Language Science Distinguished Lecture Series, State College, PA, United States.
Keijzer, M. (2013). Working memory capacity, inhibitory control and the role of L2 proficiency in aging L1 Dutch-English speakers of near-native L2 English. Brain Sciences, 3, 1261-1281. https://doi.org/10.3390/brainsci3031261

2012

Keijzer, M. (2012). Kun je je moedertaal verliezen? In M. Jansen, & M. Boogaard (Eds.), Alles wat je altijd al had willen weten over taal: De Taalcanon Meulenhoff.
de Jong, N., Juffermans, K., Keijzer, M., & Rasier, L. (Eds.) (2012). Papers of the 2012 Anela Applied Linguistics Conference. Eburon.

2011

Keijzer, M. (2011). Language in the brain: A review. Journal of Neurolinguistics, 24(3), 397-400.
Keijzer, M. (2011). Language reversion versus general cognitive decline: Towards a new taxonomy of language change in elderly bilingual immigrants. In M. S. Schmid, & W. Lowie (Eds.), Modeling Bilingualism: From structure to chaos (pp. 221-232). (Studies in bilingualism; Vol. 43). John Benjamins Publishers.

2010

Keijzer, M. (2010). First language acquisition and first language attrition: Parallels and divergences. LAP LAMBERT Academic Publishing.
Keijzer, M. (2010). The regression hypothesis as a theoretical framework for first language attrition. Bilingualism: Language and Cognition, 13(1), 9-18.

2009

Keijzer, M. (2009). A cognitive approach to the mirror symmetries in language acquisition and language attrition. In M. Putz, & L. Sicola (Eds.), Cognitive processing in second language acquisition: inside the learner's mind (pp. 227-239). (Converging evidence in language and communication research; Vol. 13). John Benjamins Publishers.
Keijzer, M., & Backus, A. (Eds.) (2009). Artikelen van de zesde Anéla-conferentie. Eburon.
Schmid, M. S., & Keijzer, M. (2009). First language attrition and reversion among older migrants. International Journal of the Sociology of Language, 2009(200), 83-101. https://doi.org/10.1515/IJSL.2009.046
Keijzer, M. (2009). Language attrition in first-generation Dutch migrants in Ontario, Canada. Canadian Journal of Netherlandic Studies, 30(2), 1-8.

2008

Keijzer, M. (2008). A usage-based approach to the mirror symmetries in language acquisition and language attrition. In Cognitive approaches to second/foreign language processing: Theory and pedagogy (pp. 300-318). Laud Linguistic Agency.
Keijzer, M. (2008). Language and aging in multilingual contexts: A review. International Journal of Bilingual Education and Bilingualism, 11(3-4), 515-518.
Keijzer, M. (2008). Language attrition in Dutch emigrants in Anglophone Canada: Internally or externally induced change? . In M. van Koppen, & B. Botma (Eds.), Linguistics in the Netherlands (Vol. 25, pp. 97-108). John Benjamins Publishers.
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