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Related Concept Videos

Working Memory01:24

Working Memory

Working memory refers to a combination of components, including short-term memory and attention, that allow an individual to hold information temporarily as we perform cognitive tasks. It is an essential cognitive function that enables the execution of complex tasks such as problem-solving, comprehension, and reasoning. Unlike short-term memory, which simply involves the storage of information for a brief period, working memory involves the active manipulation and processing of this information.

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The distance effect in numerical memory-updating tasks.

Cristina Lendínez1, Santiago Pelegrina, Teresa Lechuga

  • 1Department of Psychology, University of Jaén, Paraje las lagunillas s/n, 23071, Jaén, Spain.

Memory & Cognition
|January 26, 2011
PubMed
Summary
This summary is machine-generated.

Smaller numerical distances speed up working memory updates. This suggests updating involves activating shared features and new information, with costs related to the amount of new data.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience

Background:

  • Working memory is crucial for cognitive tasks.
  • Updating information in working memory is a key function.

Purpose of the Study:

  • To investigate how numerical distance affects updating numerical information in working memory.
  • To understand the cognitive mechanisms underlying information updating.

Main Methods:

  • Two experiments were conducted manipulating numerical distance.
  • Experiment 1 involved memorizing numbers based on comparison.
  • Experiment 2 used an external signal for updating, removing comparison.

Main Results:

  • Smaller numerical distances between old and new information resulted in faster updating times.
  • A graded facilitation effect was observed based on numerical distance.
  • Updating costs appear related to the quantity of new features to be activated.

Conclusions:

  • Numerical distance plays a significant role in the efficiency of working memory updates.
  • Information updating involves maintaining shared features and activating new ones.
  • The cognitive load of updating is influenced by the amount of novel information introduced.