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Speeded Probed Recall Is Affected by Grouping.

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Grouping significantly impacts speeded probed recall, challenging primacy-gradient models of serial order representation. Results suggest holistic order representation may better explain memory recall.

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Area of Science:

  • Cognitive Psychology
  • Human Memory

Background:

  • Previous research on speeded probed recall largely supported primacy-gradient models for serial order representation.
  • These models suggest earlier items in a list are recalled more easily.

Purpose of the Study:

  • To investigate the effect of grouping on speeded probed recall.
  • To determine if grouping influences serial order representation in memory.

Main Methods:

  • Two experiments were conducted using six-word lists.
  • Grouping was manipulated via interstimulus intervals.
  • Participants performed speeded recall of words at cued positions.

Main Results:

  • A significant interaction between item position and grouping was observed in reaction times (RT).
  • This interaction indicates that grouping affects recall performance depending on the item's position in the list.

Conclusions:

  • The findings are inconsistent with serial order representation models solely based on a primacy gradient.
  • A holistic order representation model is proposed as a potentially better explanation for the observed results.