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Examining Recall Memory in Infancy and Early Childhood Using the Elicited Imitation Paradigm
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Does articulatory rehearsal help immediate serial recall?

Alessandra S Souza1, Klaus Oberauer1

  • 1Department of Psychology, University of Zurich, Switzerland.

Cognitive Psychology
|October 8, 2018
PubMed
Summary

Articulatory rehearsal is not beneficial for verbal working memory. Experiments show that rehearsing information does not improve recall performance and can even decrease it.

Keywords:
Articulatory rehearsalOvert rehearsalSerial recallWorking memory

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Area of Science:

  • Cognitive Psychology
  • Neuroscience

Background:

  • Articulatory rehearsal is widely assumed to enhance verbal working memory.
  • However, direct experimental evidence linking rehearsal to serial-order memory, a key working memory function, is lacking.

Purpose of the Study:

  • To investigate the causal relationship between articulatory rehearsal and working memory performance.
  • To determine if instructed rehearsal schedules improve memory recall compared to free rehearsal or articulatory suppression.

Main Methods:

  • Four experiments were conducted involving participants rehearsing verbal information.
  • Conditions included instructed cumulative rehearsal, free rehearsal, fixed rehearsal schedules, and articulatory suppression.
  • Recall performance was measured across different rehearsal conditions.

Main Results:

  • Instructing cumulative rehearsal did not improve, and sometimes decreased, recall compared to free rehearsal.
  • Fixed rehearsal schedules led to significant performance costs.
  • Rehearsing information provided no benefit over articulatory suppression, which blocked rehearsal.

Conclusions:

  • The findings challenge the prevailing assumption that articulatory rehearsal benefits working memory.
  • Articulatory rehearsal does not appear to be a necessary mechanism for serial-order memory in working memory.