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Spacing effects in picture memory.

D L Hintzman1, M K Rogers

  • 1University of Oregon, Eugene, Oregon, 97403.

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This summary is machine-generated.

Spacing effects on memory are not due to rehearsal, even with complex visual scenes. The duration of the spacing interval, not rehearsal, primarily influences memory recall.

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Area of Science:

  • Cognitive Psychology
  • Human Memory

Background:

  • Shaffer and Shiffrin (1972) proposed that complex visual scenes are not rehearsed.
  • The role of rehearsal in the spacing effect on memory remains debated.

Purpose of the Study:

  • To test the hypothesis that the spacing effect on memory is caused by rehearsal.
  • To investigate if rehearsal plays a key role in memory recall for visual stimuli.

Main Methods:

  • Three experiments were conducted using vacation slides.
  • Varied number and spacing of slide repetitions.
  • Compared effects of filled and unfilled spacing intervals on memory judgments.

Main Results:

  • Spacing effects were observed for visual materials, similar to verbal materials.
  • The duration of the spacing interval, not rehearsal, was found to be the primary factor.
  • No evidence supported the rehearsal of pictures.

Conclusions:

  • Rehearsal does not appear to be the primary mechanism behind the spacing effect.
  • The duration of the spacing interval is a more significant factor in memory recall.
  • A general explanation of the spacing effect likely does not hinge on rehearsal.