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Tracking the associative boost in infancy.

Kim Plunkett1, Claire Delle Luche2, Thomas Hills3

  • 1Department of Experimental Psychology, University of Oxford, Oxford, UK.

Infancy : the Official Journal of the International Society on Infant Studies
|September 6, 2022
PubMed
Summary
This summary is machine-generated.

Eighteen-month-old infants show robust semantic priming effects between related words. Both associative and taxonomic word links strengthen this priming, mirroring adult language processing.

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Area of Science:

  • Developmental Psychology
  • Psycholinguistics
  • Cognitive Science

Background:

  • The infant mental lexicon is rapidly developing.
  • Understanding semantic relations in early word acquisition is crucial.
  • The structure of the adult mental lexicon involves associative and taxonomic links.

Purpose of the Study:

  • To investigate semantic priming in 18-month-old infants.
  • To determine the impact of associative and taxonomic word relations on priming.
  • To compare infant lexical-semantic network properties with adult systems.

Main Methods:

  • Utilizing the head-turn preference procedure with 18-month-old infants.
  • Assessing priming effects between associatively and taxonomically related word pairs.
  • Measuring the duration and strength of semantic priming.

Main Results:

  • Infants demonstrate semantic priming between associatively and taxonomically related words.
  • Priming is more robust and longer-lasting when word relations are both associative and taxonomic.
  • Activation propagation in the infant lexicon is influenced by the type of semantic relation.

Conclusions:

  • 18-month-old infants construct a lexical-semantic network incorporating associative and taxonomic relations.
  • Lexical-semantic links are strengthened by dual associative and taxonomic characteristics.
  • Infant mental lexicons share key structural and processing features with adult systems.