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Related Experiment Videos

The relationship between articulation time and memory performance in verbal and visuospatial tasks

M M Smyth1, K A Scholey

  • 1Department of Psychology, University of Lancaster, UK.

British Journal of Psychology (London, England : 1953)
|May 1, 1996
PubMed
Summary

Articulation rate influences memory span for both verbal and spatial information. This suggests a general processing speed underlies memory performance, rather than domain-specific resources for serial order.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience

Background:

  • Working memory models often assume subvocal rehearsal (articulatory recoding) mediates the link between speech rate and verbal memory span.
  • The relationship between articulation rate and spatial memory span, particularly concerning serial order, is less understood.

Purpose of the Study:

  • To investigate the relationship between articulation rate and visuospatial memory performance.
  • To examine whether domain-specific resources for serial order processing exist in memory.
  • To test the hypothesis that general processing speed mediates the link between articulation rate and memory span.

Main Methods:

  • Participants performed visuospatial memory tasks with and without serial position involvement.
  • A digit span task was included to assess verbal memory capacity.

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  • Correlation analyses were used to examine relationships between articulation rate and various memory measures.

    • Main Results:

    • Visuospatial memory tasks were highly inter-correlated.
    • Articulation rate correlated significantly with all memory performance measures, regardless of serial position involvement.
    • Visuospatial memory showed only a weak relationship with digit span, and no support was found for shared serial order resources.

    Conclusions:

    • The findings do not support domain-specific resource models for serial order memory.
    • The pervasive correlation between articulation rate and memory performance across tasks suggests mediation by general processing speed.
    • This supports the hypothesis that general processing speed, not just articulatory rehearsal, is crucial for memory span.