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New Variations for Strategy Set-shifting in the Rat
09:45

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Published on: January 23, 2017

Component processes in voluntary task switching.

Jelle Demanet1, Baptist Liefooghe

  • 1a Department of Experimental Psychology , Ghent University , Ghent , Belgium.

Quarterly Journal of Experimental Psychology (2006)
|September 28, 2013
PubMed
Summary
This summary is machine-generated.

This study examined voluntary task switching, finding that while bottom-up control aids task selection, top-down control is less evident when preparation is discouraged. Both control types influence task-switching efficiency.

Keywords:
Bottom-up controlMental flexibilitySwitch costTop-down controlVoluntary task switching

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Area of Science:

  • Cognitive Psychology
  • Neuroscience

Background:

  • Task switching involves cognitive control to manage competing tasks.
  • Voluntary task selection introduces unique dynamics to cognitive control processes.

Purpose of the Study:

  • To investigate the roles of bottom-up and top-down control in voluntary task switching.
  • To examine how time intervals influence switch costs and control mechanisms.
  • To assess the persistence of control indices when task preparation is hindered.

Main Methods:

  • Manipulating two critical time intervals: pre-indication and post-indication intervals.
  • Recording overt task choice indication before task execution.
  • Conducting experiments to discourage pre-indication task preparation.

Main Results:

  • Evidence for both top-down and bottom-up control was observed when interval lengths were manipulated.
  • Bottom-up control indices persisted even when participants were discouraged from preparing the task.
  • Top-down control indices diminished when task preparation before indication was prevented.

Conclusions:

  • Bottom-up control is crucial for immediate task selection in voluntary switching.
  • Top-down control's role is more dependent on the opportunity for proactive preparation.
  • Understanding these control mechanisms is key to explaining voluntary task switching behavior.