Cited by 773Language Development and DisordersPhonetics and Phonology ResearchCategorization, perception, and language

The DOI matches its Crossref record; 120 of the 121 references it cites were found in a registry or an index; none of the 88 sources its claims cite is checked for support yet.

A new view of language acquisition

Open access
Kuhl, Patricia K.·2000·Proceedings of the National Academy of Sciences

Abstract

At the forefront of debates on language are new data demonstrating infants' early acquisition of information about their native language. The data show that infants perceptually “map” critical aspects of ambient language in the first year of life before they can speak. Statistical properties of speech are picked up through exposure to ambient language. Moreover, linguistic experience alters infants' perception of speech, warping perception in the service of language. Infants' strategies are unexpected and unpredicted by historical views. A new theoretical position has emerged, and six postulates of this position are described.

Overview

AI snapshot

Written from the paper’s full text.

TL;DR

Kuhl proposes a new view of language acquisition in which infants map ambient language through pattern detection, statistical learning, and experience-driven perceptual warping, rather than Skinnerian reinforcement or Chomskyan selection of innate universal grammar/phonetics. Six postulates are offered, including that motherese is instructive and that the critical period depends on neural commitment from experience, not just time.

Key findings

  • Infants initially parse phonetic units universally, but this capacity is not speech-specific or species-specific: categorical perception occurs in infants and animals and for nonspeech stimuli; by 12 months infants no longer discriminate non-native phonetic contrasts even though they did so at 6 months.
  • Infants exploit statistical properties of speech: 7-month-olds discriminated target syllables better when the transitional probability between /ko/ and /ga/ was 1.0 than when it was reduced to 0.3; 8-month-olds listened longer to new pseudowords formed from parts of original words, indicating statistical word segmentation.
  • Language experience warps perception: 6-month-old US and Swedish infants showed the perceptual magnet effect only for native vowel prototypes; Japanese listeners’ multidimensional scaling map for /r-l/ showed no magnet or boundary effects, unlike American listeners.
  • Vocal imitation and motherese are linked to learning: by 20 weeks infants clearly imitate /a/, /i/, and /u/ with appropriate relative formant values; infant-directed speech exaggerates vowels in the US, Russia, and Sweden; six tenets include that the critical period is influenced by neural commitment resulting from experience.

Methods

  • Theoretical review/colloquium paper, not a new empirical study; it synthesizes behavioral, brain, comparative, and cross-linguistic infant studies.
  • No new sample is reported; cited experiments include infants at ages such as 6, 7, 8, 9, and 12 months and 12–20 weeks, plus adults and nonhuman animals.
  • Main analysis is narrative synthesis and proposal of six postulates and the Native Language Magnet model; no primary statistical analysis is reported.

Limitations

  • Stated: further tests are needed to determine the constraints on categorization, statistical learning, and prototype effects in infants using linguistic and nonlinguistic events; whether constraints for physical objects and speech are identical or different “remains to be examined”; animal/human differences “can be resolved with empirical tests.”
  • Evident: as a review, it reports no new experimental data or formal meta-analysis, so conclusions rest on cited studies; some claims, such as bilingual separation effects, are described as anecdotal or hypothetical.

Model-written summary. Check it against the paper before relying on it.

Integrity signals

Registry

Crossref · 10.1073/pnas.97.22.11850

Cites

120 of 120 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Verification

Claims the paper makes

49 Own interpretation · 44 Not checked yet · 5 No basis given · 3 Own result

Verify all 88 references — free account

Show all 74 claims

  • It may state two separate claims as one. 22
  • Probably not a substantial claim. 7
27 of 27
  • The paper relies on this without support.

    Infants' performance in laboratory speech perception tasks reflects the mechanisms underlying natural language acquisition.

    “The data show that infants perceptually “map” critical aspects of ambient language in the first year of life before they can speak.”
  • The paper relies on this without support.

    Listening preferences in infancy indicate language-specific learning.

    “American infants tested at 6 months show no listening preference for words with the strong/weak as opposed to the weak/strong pattern, but by 9 months they exhibit a strong preference for the pattern typical of their native language (55).”
  • The paper relies on this without support.

    The statistical learning demonstrated with artificial speech stimuli generalizes to natural language acquisition.

    “New research shows that infants detect and exploit the statistical properties of the language they hear to find word candidates in running speech before they know the meanings of words.”
  • The paper relies on this without support.

    Children learn language more naturally and efficiently than adults.

    “There is no doubt that children learn language more naturally and efficiently than adults, a paradox given adults' superior cognitive skills.”
  • The paper relies on this without support.

    Infants exposed to two languages do much better if each parent speaks one of the two languages, rather than both parents speaking both languages.

    “Anecdotal evidence suggests that infants exposed to two languages do much better if each parent speaks one of the two languages, rather than both parents speaking both languages.”
5 of 5

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Self-check

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1 of 1

Citations

Cites

Show all 121 references

Research works printed but not linked: 7

  1. K Wexler, P W Culicover Formal Principles of Language Acquisition (MIT Press, Cambridge, MA, 1980).
  2. K N Stevens Acoustic Phonetics (MIT Press, Cambridge, MA, 1998).
  3. J M Pickett The Acoustics of Speech Communication (Allyn and Bacon, Boston, 1999).
  4. N Gross, P C Judge, O Port, S H Wildstrom BusinessWeek, February 23, 60–72. (1998).
  5. J F Werker An Invitation to Cognitive Science: Language, eds L R Gleitman, M Liberman (MIT Press, Cambridge, MA), pp. 87–107 (1995).
  6. P K Kuhl Child Phonology: Vol. 2. Perception, eds G H Yeni-Komshian, J F Kavanagh, C A Ferguson (Academic, New York), pp. 41–66 (1980).
  7. K H S Kim, N R Relkin, K M Lee, J Hirsch Nature (London) 388, 172–174 (1997).

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Metadata

Authors
Kuhl, P. K.
Affiliations
University of Washington (US)
Corresponding author
Kuhl, Patricia K.
Venue
Proceedings of the National Academy of Sciences
Published
2000-10-24
Volume
97
Issue
22
Pages
11850-11857
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W1972159947
Cited by
773
References
121
Citations by year
2026: 12 · 2025: 12 · 2024: 21 · 2023: 36 · 2022: 31 · 2021: 45 · 2020: 32 · 2019: 34 · 2018: 45 · 2017: 34 · 2016: 31 · 2015: 53 · 2014: 32 · 2013: 30 · 2012: 34
FWCI
42.58
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (HD 37954)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (R01HD037954, HD37954)
Topics
  • Social Sciences › Psychology › Developmental and Educational Psychology › Language Development and Disorders
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Phonetics and Phonology Research
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Categorization, perception, and language
Keywords
language acquisition, infant speech perception, statistical learning, perceptual mapping, language experience, language bootstrapping, infant language development
MeSH terms
Animals, Haplorhini, Humans, Infant, Language Development

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