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Developing knowledge of nonadjacent dependencies.

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Infants may develop language skills through distinct stages when learning subject-verb agreement in French. This study tracked 14- to 24-month-olds, revealing complex developmental patterns in dependency acquisition.

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Area of Science:

  • Cognitive Science of Language
  • Developmental Psychology
  • Linguistics

Background:

  • Language acquisition involves learning dependencies between linguistic elements.
  • Infants build complex representations as they gain language experience.
  • Understanding early linguistic development is key to cognitive science.

Purpose of the Study:

  • To investigate the early acquisition of subject-verb agreement in French-learning infants.
  • To examine developmental changes in dependency acquisition between 14 and 24 months.
  • To explore the relationship between general cognition and linguistic representational knowledge.

Main Methods:

  • Utilized the Headturn Preference Procedure (HPP) to assess infant language processing.
  • Systematically tested infants at six distinct age intervals (14-24 months).
  • Focused on the nonadjacent dependency of subject-verb agreement in French.

Main Results:

  • Revealed a complex, multi-stage developmental trajectory for acquiring subject-verb agreement.
  • Provided the first evidence for distinct developmental stages in this specific dependency.
  • Demonstrated that infants' abilities change significantly within this age range.

Conclusions:

  • Infant language acquisition, specifically dependency learning, progresses through identifiable stages.
  • Changes in cognitive abilities and representational knowledge likely drive these developmental shifts.
  • Close-interval longitudinal studies are crucial for understanding nuanced language development.