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Related Experiment Videos

Irrelevant speech eliminates the word length effect

I Neath1, A M Surprenant, D C LeCompte

  • 1Purdue University, West Lafayette, IN 47907-1364, USA.

Memory & Cognition
|May 19, 1998
PubMed
Summary
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Irrelevant speech, like articulatory suppression, eliminates the word length effect in memory recall. This finding challenges Baddeley

Area of Science:

  • Cognitive Psychology
  • Human Memory
  • Working Memory Models

Background:

  • The word length effect shows better memory for shorter words.
  • The irrelevant speech effect indicates better memory in quiet than with background speech.
  • Baddeley's working memory model predicts these effects should not interact.

Purpose of the Study:

  • To investigate the interaction between the word length effect and the irrelevant speech effect.
  • To test predictions of Baddeley's working memory model and Nairne's feature model.

Main Methods:

  • Four experiments were conducted.
  • Investigated memory recall for visual and auditory items under conditions of quiet, irrelevant speech, and articulatory suppression.

Related Experiment Videos

Main Results:

  • Irrelevant speech, similar to articulatory suppression, completely eliminated the word length effect.
  • This interaction was observed for both visually and auditorily presented items.

Conclusions:

  • The results challenge the explanatory power of Baddeley's working memory model for these phenomena.
  • The findings provide support for Nairne's feature model of memory.