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Related Experiment Videos

Pattern induction by infant language learners.

Jenny R Saffran1, Erik D Thiessen

  • 1Department of Psychology and Waisman Center, University of Wisconsin-Madison, 53706, USA. jsaffran@facstaff.wisc.edu

Developmental Psychology
|May 23, 2003
PubMed
Summary
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Infants rapidly learn native language sound patterns by 9 months old. This study shows they can extract new phonological rules, though some are learned more easily than others.

Area of Science:

  • Psycholinguistics
  • Developmental Psychology
  • Speech Perception

Background:

  • Infants acquire complex phonological and phonotactic patterns of their native language by their first year.
  • The underlying learning mechanisms for this rapid language acquisition remain largely unknown.

Purpose of the Study:

  • To investigate how 9-month-old infants learn phonological regularities in their native language.
  • To explore the constraints on infant phonological pattern acquisition.

Main Methods:

  • Three experiments manipulated syllable structure, consonant voicing, and segmental position.
  • Infants were familiarized with fluent speech containing words that either adhered to or violated learned phonological patterns.
  • Post-familiarization testing assessed infants' ability to detect these patterns.

Related Experiment Videos

Main Results:

  • Infants demonstrated rapid extraction of novel phonological regularities from the speech input.
  • The ease of acquisition varied, indicating constraints on the learning process.
  • Specific phonological patterns were more readily induced than others.

Conclusions:

  • 9-month-old infants possess sophisticated mechanisms for learning phonological patterns in their native language.
  • Phonological learning in infancy is constrained, with certain types of regularities being more accessible.
  • This research sheds light on the early stages of speech sound acquisition.