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Related Experiment Videos

Associative retrieval processes in free recall

M J Kahana1

  • 1Center for Complex Systems, Brandeis University, Waltham, MA 02254-9110, USA. kahana@fechner.ccs.brandeis.edu

Memory & Cognition
|January 1, 1996
PubMed
Summary
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This study reveals that memory recall is strongly influenced by item contiguity, not just semantic links. Adjacent items are recalled more frequently and faster, especially in the forward direction.

Area of Science:

  • Cognitive Psychology
  • Human Memory Research

Background:

  • Prior research highlights semantic organization in free recall.
  • The role of association by contiguity requires further investigation.

Purpose of the Study:

  • To introduce a novel method for analyzing associative processes in free recall.
  • To demonstrate the significance of contiguity in memory retrieval.

Main Methods:

  • Examined conditional response probabilities and latencies in free recall output sequences.
  • Analyzed recall probability and latency based on input position (lag) between items.

Main Results:

  • Items from adjacent input positions were recalled more often and faster than those from remote positions.
  • Adjacent pairs were recalled approximately twice as often and faster in the forward direction compared to the backward direction.

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  • These contiguity and asymmetry effects were consistent across all output positions.

    • Conclusions:

    • Contiguity, particularly forward-directed associations, plays a crucial role in free recall, challenging purely semantic models.
    • The findings necessitate refining memory models, such as the Search of Associative Memory model, to account for asymmetric contiguity effects.