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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...
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The information-processing theory of cognitive development centers on fundamental mental processes, including attention, memory, and problem-solving skills. Researchers in this field examine how cognitive abilities, such as working memory, evolve and influence children's overall development. Studies indicate that children with stronger working memory tend to excel in reading comprehension, math, and problem-solving compared to peers with less efficient memory skills. Low working memory is...
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Controlled processes in human consciousness represent high-alert mental states where individuals deliberately focus their attention on achieving specific goals. Controlled processes can be seen in situations like mastering new technology, where a person might become so absorbed that they ignore surrounding distractions. Such processes involve selective attention, requiring one to concentrate on particular elements of experience while disregarding others. These are governed by executive...
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A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions
10:38

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Balancing Flexibility and Interference in Working Memory.

Timothy J Buschman1

  • 1Princeton Neuroscience Institute and Department of Psychology, Princeton University, Princeton, New Jersey 08544, USA;

Annual Review of Vision Science
|June 3, 2021
PubMed
Summary
This summary is machine-generated.

Working memory, essential for complex thought, has limited capacity due to neural interference. This review explores how prefrontal and sensory cortex interactions enable flexibility but also cause capacity limits.

Keywords:
capacity limitationscognitive flexibilityinterferenceneural dynamicsworking memory

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Last Updated: Nov 3, 2025

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Area of Science:

  • Cognitive Neuroscience
  • Computational Neuroscience

Background:

  • Working memory is crucial for cognition and complex behaviors.
  • Working memory capacity is notably limited, typically to 3-4 items.

Purpose of the Study:

  • To review evidence linking working memory flexibility and limited capacity to a single neural mechanism.
  • To explore the interplay between prefrontal cortex and sensory cortex representations in working memory.

Main Methods:

  • Review of experimental findings.
  • Analysis of computational models of working memory.

Main Results:

  • Working memory flexibility and limited capacity stem from the same neural mechanism.
  • Interactions between prefrontal and sensory cortex representations enable flexible maintenance of information.
  • Distributed representations lead to interference, causing capacity limitations.

Conclusions:

  • The brain employs mechanisms to mitigate interference and enhance working memory capacity.
  • Understanding these interactions offers insights into cognitive limitations and potential enhancements.