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Related Experiment Videos

Preschoolers are sensitive to the speaker's knowledge when learning proper names.

Susan A J Birch1, Paul Bloom

  • 1Department of Psychology, Yale University, New Haven, CT 06520-8205, USA. susan.birch@yale.edu

Child Development
|April 13, 2002
PubMed
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Young children use the familiarity principle to learn names, understanding who a speaker knows based on proper names. This ability, crucial for language acquisition, develops significantly by age five.

Area of Science:

  • Developmental Psychology
  • Linguistics
  • Cognitive Science

Background:

  • Proper names refer to unique individuals, and knowledge of these names implies familiarity.
  • The "familiarity principle" suggests that one can infer familiarity from name knowledge.
  • It is unclear if young children understand this principle for language learning.

Purpose of the Study:

  • To investigate if young children utilize the familiarity principle in word learning.
  • To determine the developmental trajectory of understanding the familiarity principle.

Main Methods:

  • Experiment 1: 48 children (2-4 years) identified a referent of a proper name based on speaker familiarity.
  • Experiment 2: 48 children (3-5 years) inferred speaker familiarity from a proper name, reversing the task.

Related Experiment Videos

Main Results:

  • Two-year-olds successfully linked proper names to familiar individuals (Experiment 1).
  • Only five-year-olds reliably inferred speaker familiarity from proper names (Experiment 2).

Conclusions:

  • Children as young as two can use the familiarity principle in specific word-learning contexts.
  • A generalized understanding of the familiarity principle is a late-developing cognitive skill, emerging around age five.