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Comparing the Frequency Effect Between the Lexical Decision and Naming Tasks in Chinese
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Frequency of prospective use modulates instructed task-set interference.

Peter S Whitehead1, Tobias Egner1

  • 1Center for Cognitive Neuroscience.

Journal of Experimental Psychology. Human Perception and Performance
|September 29, 2018
PubMed
Summary
This summary is machine-generated.

People can strategically control how task instructions in working memory (WM) interfere with other tasks. This interference increases when implementing instructions becomes more likely, suggesting some strategic modulation of WM contents.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience

Background:

  • Working memory (WM) plays a crucial role in cognitive tasks.
  • Prospective task-set interference occurs when WM contents disrupt ongoing processing.

Purpose of the Study:

  • To investigate strategic control over prospective task-set interference.
  • To determine if expectations of implementing or recalling task instructions influence interference.

Main Methods:

  • Two experiments were conducted, varying the likelihood of implementing or recalling prospective task instructions.
  • Participants' behavior on an intervening task was measured to assess interference.

Main Results:

  • Task instructions in WM caused significant interference, even when recall was more likely.
  • The magnitude of interference positively scaled with the likelihood of instruction implementation.

Conclusions:

  • Task instructions are obligatorily encoded as procedural sets in WM.
  • Strategic control modulates the impact of WM task sets on stimulus processing, potentially via WM content associations.