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Item-method directed forgetting and working memory capacity: A hierarchical multinomial modeling approach.

Ivan Marevic1, Nina R Arnold2, Jan Rummel1

  • 11 Department of Psychology, Heidelberg University, Heidelberg, Germany.

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|March 23, 2017
PubMed
Summary
This summary is machine-generated.

Individuals with high working-memory capacity (WMC) better store information for later recall. WMC did not affect forgetting or recalling items designated for forgetting in the item-method directed forgetting task.

Keywords:
Directed forgettinghierarchical multinomial modelingitem methodstorage–retrieval modelworking-memory capacity

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Area of Science:

  • Cognitive Psychology
  • Neuroscience

Background:

  • Intentional forgetting is an active, adaptive cognitive process.
  • Directed forgetting (DF) paradigms, including item-method and list-method, are used to study forgetting.
  • Working-memory capacity (WMC) predicts DF effects in the list-method but its role in item-method DF is less understood.

Purpose of the Study:

  • To investigate if individual differences in WMC influence DF effects in the item-method.
  • To examine the relationship between WMC and item-method DF at distinct memory processing stages (storage and retrieval).

Main Methods:

  • Participants completed an item-method directed forgetting task.
  • Individual differences in WMC were assessed.
  • A hierarchical multinomial storage-retrieval model was applied to analyze memory processes.

Main Results:

  • Higher WMC was associated with enhanced storage of to-be-remembered items.
  • WMC did not correlate with the retrieval of to-be-remembered items.
  • WMC was unrelated to the storage or retrieval of to-be-forgotten items.

Conclusions:

  • WMC primarily influences the initial encoding and storage of information in the item-method DF paradigm.
  • Findings contribute to understanding the cognitive mechanisms underlying directed forgetting and the role of working memory.