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Semantic Memory Organization in Second Graders and Adults.

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Second-grade children and adults show similar semantic memory organization. Both groups experienced more interference from within-category words, suggesting conceptual categories guide memory retrieval in young learners.

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Area of Science:

  • Cognitive Psychology
  • Developmental Psychology
  • Neuroscience

Background:

  • Semantic memory organization influences information retrieval.
  • Understanding how conceptual categories develop is crucial for cognitive science.
  • Previous research suggests associative links are key, but categorical structures also play a role.

Purpose of the Study:

  • To investigate semantic memory organization in second-grade children and adults.
  • To compare interference effects from within-category versus cross-category words.
  • To examine age-related changes in the balance of associative and categorical relationships.

Main Methods:

  • Participants (adults and second-graders) performed a picture-naming task with interfering words.
  • Picture-word stimuli varied in association strength (high/low) and category relationship (within/cross-category).
  • Interference effects were measured by response times and accuracy.

Main Results:

  • Both age groups showed significantly greater interference from within-category words compared to cross-category words.
  • The patterns of associative and categorical interference were highly similar between children and adults.
  • No evidence of age-related changes in the relative strength of categorical versus associative relationships was found.

Conclusions:

  • Second-grade children's semantic memory is organized, at least partly, by conceptual categories.
  • The findings suggest that categorical organization in semantic memory is established early and remains stable.
  • Developmental changes in semantic memory may not significantly alter the relative importance of categorical and associative structures.