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Cognitive load hypothesis of item-method directed forgetting.

Yuh-Shiow Lee1

  • 1Department of Psychology, National Chung-Cheng University, Chiayi, Taiwan. psyysl@ccu.edu.tw

Quarterly Journal of Experimental Psychology (2006)
|March 1, 2012
PubMed
Summary
This summary is machine-generated.

Directed forgetting is easier with fewer cognitive resources. This study found that higher processing demands on to-be-remembered words enhance the forgetting of to-be-forgotten words, supporting the cognitive load hypothesis.

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Area of Science:

  • Cognitive Psychology
  • Memory Research
  • Directed Forgetting

Background:

  • Directed forgetting paradigms investigate the ability to selectively forget unwanted information.
  • Previous research suggests that cognitive control plays a role in directed forgetting.
  • The influence of processing demands on memory and forgetting remains an active area of investigation.

Purpose of the Study:

  • To examine how the processing demands of to-be-remembered (TBR) words affect item-method directed forgetting.
  • To test the cognitive load hypothesis in the context of directed forgetting.
  • To determine if increased cognitive load during encoding facilitates the forgetting of to-be-forgotten (TBF) words.

Main Methods:

  • Three experiments were conducted using an item-method directed forgetting task.
  • Participants were instructed to remember some words (TBR) and forget others (TBF).
  • Varying processing demands for TBR words (e.g., standard memory vs. naming) and list lengths were manipulated across experiments.

Main Results:

  • A naming task for TBR words led to better forgetting of TBF words compared to a standard memory task.
  • Fewer TBR words in the study list resulted in more difficult forgetting of TBF words.
  • This pattern held true for both free recall and cued recall tests.

Conclusions:

  • Increased processing demands on TBR words enhance the forgetting of TBF words.
  • The findings support the cognitive load hypothesis, suggesting that reduced cognitive resources facilitate forgetting.
  • Item-method directed forgetting effectiveness is modulated by the cognitive load imposed during encoding.