{"version":"1.0","updated":"2026-05-12","site":"https://talktodia.com","license":"CC BY 4.0 for derived claim metadata; underlying papers retain their licenses.","posts":[{"slug":"adults-can-learn-languages-fluently","url":"https://talktodia.com/en/blog/adults-can-learn-languages-fluently","publishedAt":"2026-05-10","updatedAt":"2026-05-10","languages":["en","fr","de","zh","ko","es","pt","ja","th","ru","fi","it","no","sv","hi","da","uk","ar","he","ms","ta","ml","ig","sw","nl","kk","fa","cs","pl","hu","mn","tl","tr","id","uz"],"wordCount":556,"claims":["adults-can-learn-languages-fluently-fact-1","adults-can-learn-languages-fluently-fact-2","adults-can-learn-languages-fluently-fact-3","adults-can-learn-languages-fluently-fact-4"]}],"claims":[{"id":"adults-can-learn-languages-fluently-fact-1","post":"adults-can-learn-languages-fluently","postUrl":"https://talktodia.com/en/blog/adults-can-learn-languages-fluently","claim":"Grammar-learning ability stays stable until age ~17.4, not 7 as commonly claimed.","confidence":"author-summarized","sources":[{"title":"Hartshorne, Tenenbaum & Pinker (2018) — A critical period for second language acquisition","url":"https://www.sciencedirect.com/science/article/pii/S0010027718300994","doi":"10.1016/j.cognition.2018.04.007","authors":"Hartshorne, J. K., Tenenbaum, J. B., & Pinker, S.","year":2018},{"title":"Pliatsikas et al. (2017) — White matter changes from late L2 immersion","url":"https://doi.org/10.1162/jocn_a_01084","doi":"10.1162/jocn_a_01084","authors":"Pliatsikas, C., et al.","year":2017},{"title":"Mårtensson et al. (2012) — Growth of language-related brain areas after foreign language learning","url":"https://doi.org/10.1016/j.neuroimage.2012.06.043","doi":"10.1016/j.neuroimage.2012.06.043","authors":"Mårtensson, J., et al.","year":2012}]},{"id":"adults-can-learn-languages-fluently-fact-2","post":"adults-can-learn-languages-fluently","postUrl":"https://talktodia.com/en/blog/adults-can-learn-languages-fluently","claim":"Adults often outpace children in vocabulary and reading acquisition.","confidence":"author-summarized","sources":[{"title":"Hartshorne, Tenenbaum & Pinker (2018) — A critical period for second language acquisition","url":"https://www.sciencedirect.com/science/article/pii/S0010027718300994","doi":"10.1016/j.cognition.2018.04.007","authors":"Hartshorne, J. K., Tenenbaum, J. B., & Pinker, S.","year":2018},{"title":"Pliatsikas et al. (2017) — White matter changes from late L2 immersion","url":"https://doi.org/10.1162/jocn_a_01084","doi":"10.1162/jocn_a_01084","authors":"Pliatsikas, C., et al.","year":2017},{"title":"Mårtensson et al. (2012) — Growth of language-related brain areas after foreign language learning","url":"https://doi.org/10.1016/j.neuroimage.2012.06.043","doi":"10.1016/j.neuroimage.2012.06.043","authors":"Mårtensson, J., et al.","year":2012}]},{"id":"adults-can-learn-languages-fluently-fact-3","post":"adults-can-learn-languages-fluently","postUrl":"https://talktodia.com/en/blog/adults-can-learn-languages-fluently","claim":"Late L2 immersion measurably grows white matter and hippocampal volume.","confidence":"author-summarized","sources":[{"title":"Hartshorne, Tenenbaum & Pinker (2018) — A critical period for second language acquisition","url":"https://www.sciencedirect.com/science/article/pii/S0010027718300994","doi":"10.1016/j.cognition.2018.04.007","authors":"Hartshorne, J. K., Tenenbaum, J. B., & Pinker, S.","year":2018},{"title":"Pliatsikas et al. (2017) — White matter changes from late L2 immersion","url":"https://doi.org/10.1162/jocn_a_01084","doi":"10.1162/jocn_a_01084","authors":"Pliatsikas, C., et al.","year":2017},{"title":"Mårtensson et al. (2012) — Growth of language-related brain areas after foreign language learning","url":"https://doi.org/10.1016/j.neuroimage.2012.06.043","doi":"10.1016/j.neuroimage.2012.06.043","authors":"Mårtensson, J., et al.","year":2012}]},{"id":"adults-can-learn-languages-fluently-fact-4","post":"adults-can-learn-languages-fluently","postUrl":"https://talktodia.com/en/blog/adults-can-learn-languages-fluently","claim":"The real \"critical period\" is social pressure, not brain biology.","confidence":"author-summarized","sources":[{"title":"Hartshorne, Tenenbaum & Pinker (2018) — A critical period for second language acquisition","url":"https://www.sciencedirect.com/science/article/pii/S0010027718300994","doi":"10.1016/j.cognition.2018.04.007","authors":"Hartshorne, J. K., Tenenbaum, J. B., & Pinker, S.","year":2018},{"title":"Pliatsikas et al. (2017) — White matter changes from late L2 immersion","url":"https://doi.org/10.1162/jocn_a_01084","doi":"10.1162/jocn_a_01084","authors":"Pliatsikas, C., et al.","year":2017},{"title":"Mårtensson et al. (2012) — Growth of language-related brain areas after foreign language learning","url":"https://doi.org/10.1016/j.neuroimage.2012.06.043","doi":"10.1016/j.neuroimage.2012.06.043","authors":"Mårtensson, J., et al.","year":2012}]}]}