The DOI matches its Crossref record; 111 of the 111 references it cites were found in a registry or an index.
Maturational constraints on language development.
Open accessAbstract
This article reviews the second language research on age-related differences, as well as first language work needed to disambiguate some of the findings. Five conclusions are drawn, (a) Both the initial rate of acquisition and the ultimate level of attainment depend in part on the age at which learning begins. (b) There are sensitive periods governing language development, first or second, during which the acquisition of different linguistic abilities is successful and after which it is irregular and incomplete. (c) The age-related loss in ability is cumulative (not a catastrophic one-time event), affecting first one linguistic domain and then another, and is not limited to phonology, (d) The deterioration in some individuals begins as early as age 6—not at puberty as is often claimed. (e) Affective, input, and current cognitive explanations for the reduced ability are inadequate. The capacity for language development is maturationally constrained, and its decline probably reflects a progressive loss of neural plasticity, itself possibly associated with increasing myelination.
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Citations
Cites
The Biological Foundations of Language
Lenneberg, E. H. (1967) · Hospital Practice · doi:10.1080/21548331.1967.11707799 · Cited by 6,605
Educational Psychology: A Cognitive View
Ausubel, D. P., Novak, J. D., & Hanesian, H. (1968) · Medical Entomology and Zoology · Cited by 5,203
Educational Psychology: A Cognitive View
Gagné, R. M., Ausubel, D. P., & Gagne, R. M. (1969) · American Educational Research Journal · doi:10.2307/1161899 · Cited by 3,293
(1985) · Medical Entomology and Zoology · Cited by 3,037
Understanding second language acquisition
Ellis, R. (1985) · Cited by 2,937
Johnson, J. S., & Newport, E. L. (1989) · Cognitive Psychology · doi:10.1016/0010-0285(89)90003-0 · Cited by 2,724
Input in Second Language Acquisition
Bottigheimer, R. B., Gass, S. M., & Madden, C. G. (1986) · Modern Language Journal · doi:10.2307/327330 · Cited by 2,336
(1960) · Medical Journal of Australia · doi:10.5694/j.1326-5377.1960.tb76238.x · Cited by 2,178
Language Acquisition: The State of the Art
Wanner, E., & Gleitman, L. R. (2009) · Medical Entomology and Zoology · Cited by 2,022
Action, gesture, and symbol : the emergence of language
Lock, A. (1978) · Cited by 1,103
Research works printed but not linked: 32
- Neufeld, 1977, Language learning ability in adults: A study on the acquisition of prosodic and articulatory features, Working Papers on Bilingualism, 12, 45
- Hinde, 1970, Animal behavior
- McKinney V. (1983). First language learning in deaf persons beyond the critical period. Unpublished PhD thesis, Clairemont Graduate School, Clairemont, CA.
- Harley B. (1982). Age-related differences in the acquisition of the French verb system by anglophone students in French immersion programs. Unpublished PhD thesis, University of Toronto.
- Guiora A. , & Schonberger R. (1989, May). Native pronunciation of bilinguals. Paper presented at the first annual JAAL conference, Aoyama Gakuin University, Tokyo.
- Mayberry, 1983, Language in sign: International perspectives on sign language, 83
- Krashen, 1982, Child-adult differences in second language acquisition, 202
- Curtiss, 1980, The critical period and feral children, UCLA Working Papers in Cognitive Linguistics, 2, 21
- Bland, 1966, A self-controlled audio-lingual program for children, French Review, 40, 266
- Bellugi U. (1967). The acquisition of negation. Unpublished PhD thesis, Harvard University, Cambridge, MA.
- Bley-Vroman, The logical problem of foreign language learning, Linguistic Analysis
- Ekstrand, 1978, Didakometry, 60
- Adiv E. (1980). An analysis of second language performance in two types of immersion programs. Unpublished PhD thesis, McGill University, Montreal.
- Bateson, 1973, Constraints on learning, 77
- Ekstrand, 1976, Proceedings of the Fourth International Congress of Applied Linguistics, 3, 179
- McLaughlin, 1984, Second-language acquisition in childhood: Volume 1. Preschool children
- Snow, 1987, Sensitive periods in development: An interdisciplinary perspective, 183
- Hatch, 1977, Optimal age or optimal learners?, Workpapers in TESL, 11, 45
- Scarcella, 1982, Child-adult differences in second language acquisition, 175
- Rosansky, 1975, The critical period for the acquisition of language: Some cognitive developmental considerations, Working Papers on Bilingualism, 6, 10
- Schmidt, 1981, Interaction, acculturation and the acquisition of communicative competence, University of Hawaii Working Papers in Linguistics, 13, 29
- Young R. (1981). Sign language acquisition in a deaf adult: A test of the critical period hypothesis. Unpublished PhD thesis, University of Georgia, Athens.
- Wald, 1986, Diversity and diachrony. Current issues in linguistic theory, 53, 153
- Curtiss, 1988, Linguistics: The Cambridge Survey: Vol. 2. Linguistic theory: Extensions and implications, 96
- Scovel, 1981, Proceedings of the 5th Congress of AILA, 389
- Patkowski M. (1980a). The sensitive period for the acquisition of syntax in a secondary language. Unpublished PhD thesis, New York University, New York.
- Snow, 1983, Second language acquisition studies, 141
- Krashen, 1982, Child-adult differences in second language acquisition
- Slobin, 1982, Language acquisition: State of the art, 128
- Curtiss, 1982, Exceptional languages and linguistics, 285
- Ritchie, 1978, Second language acquisition research, 33
- David S. (1985). The acquisition of the phonological features of a second dialect. Unpublished master's thesis, University of South Carolina, Columbia.
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Metadata
- Authors
- Long, M. H.
- Affiliations
- University of Hawaiʻi at Mānoa (US)
- Corresponding author
- Long, Michael H.
- ORCID
- Long, Michael H.
- Venue
- Studies in Second Language Acquisition
- Publisher
- Cambridge University Press (CUP)
- Published
- 1990-09
- Volume
- 12
- Issue
- 3
- Pages
- 251-285
- ISSN
- 0272-2631 (ISSN-L)
- 1470-1545
- OpenAlex
- W2034658764
- Cited by
- 1,090
- References
- 110
- Citations by year
- 2026: 11 · 2025: 20 · 2024: 49 · 2023: 42 · 2022: 41 · 2021: 30 · 2020: 39 · 2019: 67 · 2018: 47 · 2017: 35 · 2016: 40 · 2015: 56 · 2014: 47 · 2013: 49 · 2012: 58
- FWCI
- 13.99
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Studies in Second Language Acquisition (publishedVersion)
- Topics
- Social Sciences › Psychology › Developmental and Educational Psychology › Language Development and Disorders
- Social Sciences › Arts and Humanities › Language and Linguistics › EFL/ESL Teaching and Learning
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neurobiology of Language and Bilingualism
- Keywords
- critical period hypothesis, sensitive period, age of onset, second language acquisition, first language development, language loss, neuroplasticity, myelination, phonological development
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