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Forgetting is an intrinsic aspect of human memory, characterized by the gradual loss or inaccessibility of information over time. Hermann Ebbinghaus, a pioneering psychologist, extensively studied this phenomenon and formulated the forgetting curve. This curve illustrates that memory loss occurs rapidly immediately after learning and then decelerates over time. Several mechanisms contribute to forgetting, including encoding failure, storage decay, retrieval failure, and interference.
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A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions
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Directed forgetting in working memory.

Hannah Dames1, Klaus Oberauer1

  • 1Department of Psychology.

Journal of Experimental Psychology. General
|June 13, 2022
PubMed
Summary
This summary is machine-generated.

Intent significantly impacts working memory (WM). Intentionally forgetting information leads to poor recall, while intending to remember enhances memory performance, demonstrating robust directed forgetting effects.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Human Memory

Background:

  • Working memory (WM) is crucial for cognitive tasks.
  • The influence of intentional memory control on WM is not fully understood.

Purpose of the Study:

  • To investigate how the intent to remember or forget affects working memory content.
  • To establish a novel methodology for studying directed forgetting in WM.

Main Methods:

  • Four experiments were conducted using a directed forgetting paradigm.
  • Participants memorized words presented sequentially, with cues indicating whether to remember or forget each word.
  • Recognition performance for both to-be-remembered and to-be-forgotten items was assessed.

Main Results:

  • Consistently poor recognition for to-be-forgotten words and facilitated recognition for to-be-remembered words were observed.
  • Directed forgetting effects were robust across multiple testings, item/binding memory, and delays up to 5 seconds.
  • Evidence for directed forgetting in WM was demonstrated.

Conclusions:

  • Intent has a strong and robust impact on working memory content.
  • Directed forgetting in WM is likely driven by two processes: reducing memory strength for forgotten items and enhancing memory strength for intended items.
  • The study provides a new method to jointly examine the effects of intent on relevant and irrelevant information within WM.